[SPIP][PLUGINS] v3.0-->v3.2
[lhc/web/www.git] / www / plugins-dist / organiseur / lib / fullcalendar / fullcalendar.js
index db5d838..0439930 100644 (file)
-/**
- * @preserve
- * FullCalendar v1.5
- * http://arshaw.com/fullcalendar/
- *
- * Use fullcalendar.css for basic styling.
- * For event drag & drop, requires jQuery UI draggable.
- * For event resizing, requires jQuery UI resizable.
- *
- * Copyright (c) 2011 Adam Shaw
- * Dual licensed under the MIT and GPL licenses, located in
- * MIT-LICENSE.txt and GPL-LICENSE.txt respectively.
- *
- * Date: Sat Mar 19 18:59:37 2011 -0700
- *
+/*!
+ * FullCalendar v3.2.0
+ * Docs & License: https://fullcalendar.io/
+ * (c) 2017 Adam Shaw
  */
-(function($, undefined) {
 
-
-var defaults = {
-
-       // display
-       defaultView: 'month',
-       aspectRatio: 1.35,
-       header: {
-               left: 'title',
-               center: '',
-               right: 'today prev,next'
-       },
-       weekends: true,
-       
-       // editing
-       //editable: false,
-       //disableDragging: false,
-       //disableResizing: false,
-       
-       allDayDefault: true,
-       ignoreTimezone: true,
-       
-       // event ajax
-       lazyFetching: true,
-       startParam: 'start',
-       endParam: 'end',
-       
-       // time formats
-       titleFormat: {
-               month: 'MMMM yyyy',
-               week: "MMM d[ yyyy]{ '—'[ MMM] d yyyy}",
-               day: 'dddd, MMM d, yyyy'
-       },
-       columnFormat: {
-               month: 'ddd',
-               week: 'ddd M/d',
-               day: 'dddd M/d'
-       },
-       timeFormat: { // for event elements
-               '': 'h(:mm)t' // default
-       },
-       
-       // locale
-       isRTL: false,
-       firstDay: 0,
-       monthNames: ['January','February','March','April','May','June','July','August','September','October','November','December'],
-       monthNamesShort: ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'],
-       dayNames: ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'],
-       dayNamesShort: ['Sun','Mon','Tue','Wed','Thu','Fri','Sat'],
-       buttonText: {
-               prev: ' ◄ ',
-               next: ' ► ',
-               prevYear: ' << ',
-               nextYear: ' >> ',
-               today: 'today',
-               month: 'month',
-               week: 'week',
-               day: 'day'
-       },
-       
-       // jquery-ui theming
-       theme: false,
-       buttonIcons: {
-               prev: 'circle-triangle-w',
-               next: 'circle-triangle-e'
-       },
-       
-       //selectable: false,
-       unselectAuto: true,
-       
-       dropAccept: '*'
-       
-};
-
-// right-to-left defaults
-var rtlDefaults = {
-       header: {
-               left: 'next,prev today',
-               center: '',
-               right: 'title'
-       },
-       buttonText: {
-               prev: ' ► ',
-               next: ' ◄ ',
-               prevYear: ' >> ',
-               nextYear: ' << '
-       },
-       buttonIcons: {
-               prev: 'circle-triangle-e',
-               next: 'circle-triangle-w'
+(function(factory) {
+       if (typeof define === 'function' && define.amd) {
+               define([ 'jquery', 'moment' ], factory);
        }
-};
-
+       else if (typeof exports === 'object') { // Node/CommonJS
+               module.exports = factory(require('jquery'), require('moment'));
+       }
+       else {
+               factory(jQuery, moment);
+       }
+})(function($, moment) {
 
+;;
 
-var fc = $.fullCalendar = { version: "1.5" };
-var fcViews = fc.views = {};
+var FC = $.fullCalendar = {
+       version: "3.2.0",
+       // When introducing internal API incompatibilities (where fullcalendar plugins would break),
+       // the minor version of the calendar should be upped (ex: 2.7.2 -> 2.8.0)
+       // and the below integer should be incremented.
+       internalApiVersion: 8
+};
+var fcViews = FC.views = {};
 
 
 $.fn.fullCalendar = function(options) {
+       var args = Array.prototype.slice.call(arguments, 1); // for a possible method call
+       var res = this; // what this function will return (this jQuery object by default)
 
+       this.each(function(i, _element) { // loop each DOM element involved
+               var element = $(_element);
+               var calendar = element.data('fullCalendar'); // get the existing calendar object (if any)
+               var singleRes; // the returned value of this single method call
 
-       // method calling
-       if (typeof options == 'string') {
-               var args = Array.prototype.slice.call(arguments, 1);
-               var res;
-               this.each(function() {
-                       var calendar = $.data(this, 'fullCalendar');
+               // a method call
+               if (typeof options === 'string') {
                        if (calendar && $.isFunction(calendar[options])) {
-                               var r = calendar[options].apply(calendar, args);
-                               if (res === undefined) {
-                                       res = r;
+                               singleRes = calendar[options].apply(calendar, args);
+                               if (!i) {
+                                       res = singleRes; // record the first method call result
                                }
-                               if (options == 'destroy') {
-                                       $.removeData(this, 'fullCalendar');
+                               if (options === 'destroy') { // for the destroy method, must remove Calendar object data
+                                       element.removeData('fullCalendar');
                                }
                        }
-               });
-               if (res !== undefined) {
-                       return res;
                }
-               return this;
+               // a new calendar initialization
+               else if (!calendar) { // don't initialize twice
+                       calendar = new Calendar(element, options);
+                       element.data('fullCalendar', calendar);
+                       calendar.render();
+               }
+       });
+
+       return res;
+};
+
+
+var complexOptions = [ // names of options that are objects whose properties should be combined
+       'header',
+       'footer',
+       'buttonText',
+       'buttonIcons',
+       'themeButtonIcons'
+];
+
+
+// Merges an array of option objects into a single object
+function mergeOptions(optionObjs) {
+       return mergeProps(optionObjs, complexOptions);
+}
+
+;;
+
+// exports
+FC.intersectRanges = intersectRanges;
+FC.applyAll = applyAll;
+FC.debounce = debounce;
+FC.isInt = isInt;
+FC.htmlEscape = htmlEscape;
+FC.cssToStr = cssToStr;
+FC.proxy = proxy;
+FC.capitaliseFirstLetter = capitaliseFirstLetter;
+
+
+/* FullCalendar-specific DOM Utilities
+----------------------------------------------------------------------------------------------------------------------*/
+
+
+// Given the scrollbar widths of some other container, create borders/margins on rowEls in order to match the left
+// and right space that was offset by the scrollbars. A 1-pixel border first, then margin beyond that.
+function compensateScroll(rowEls, scrollbarWidths) {
+       if (scrollbarWidths.left) {
+               rowEls.css({
+                       'border-left-width': 1,
+                       'margin-left': scrollbarWidths.left - 1
+               });
        }
-       
-       
-       // would like to have this logic in EventManager, but needs to happen before options are recursively extended
-       var eventSources = options.eventSources || [];
-       delete options.eventSources;
-       if (options.events) {
-               eventSources.push(options.events);
-               delete options.events;
+       if (scrollbarWidths.right) {
+               rowEls.css({
+                       'border-right-width': 1,
+                       'margin-right': scrollbarWidths.right - 1
+               });
        }
-       
+}
 
-       options = $.extend(true, {},
-               defaults,
-               (options.isRTL || options.isRTL===undefined && defaults.isRTL) ? rtlDefaults : {},
-               options
-       );
-       
-       
-       this.each(function(i, _element) {
-               var element = $(_element);
-               var calendar = new Calendar(element, options, eventSources);
-               element.data('fullCalendar', calendar); // TODO: look into memory leak implications
-               calendar.render();
+
+// Undoes compensateScroll and restores all borders/margins
+function uncompensateScroll(rowEls) {
+       rowEls.css({
+               'margin-left': '',
+               'margin-right': '',
+               'border-left-width': '',
+               'border-right-width': ''
        });
-       
-       
-       return this;
-       
-};
+}
 
 
-// function for adding/overriding defaults
-function setDefaults(d) {
-       $.extend(true, defaults, d);
+// Make the mouse cursor express that an event is not allowed in the current area
+function disableCursor() {
+       $('body').addClass('fc-not-allowed');
 }
 
 
+// Returns the mouse cursor to its original look
+function enableCursor() {
+       $('body').removeClass('fc-not-allowed');
+}
 
-function Calendar(element, options, eventSources) {
-       var t = this;
-       
-       
-       // exports
-       t.options = options;
-       t.render = render;
-       t.destroy = destroy;
-       t.refetchEvents = refetchEvents;
-       t.reportEvents = reportEvents;
-       t.reportEventChange = reportEventChange;
-       t.rerenderEvents = rerenderEvents;
-       t.changeView = changeView;
-       t.select = select;
-       t.unselect = unselect;
-       t.prev = prev;
-       t.next = next;
-       t.prevYear = prevYear;
-       t.nextYear = nextYear;
-       t.today = today;
-       t.gotoDate = gotoDate;
-       t.incrementDate = incrementDate;
-       t.formatDate = function(format, date) { return formatDate(format, date, options) };
-       t.formatDates = function(format, date1, date2) { return formatDates(format, date1, date2, options) };
-       t.getDate = getDate;
-       t.getView = getView;
-       t.option = option;
-       t.trigger = trigger;
-       
-       
-       // imports
-       EventManager.call(t, options, eventSources);
-       var isFetchNeeded = t.isFetchNeeded;
-       var fetchEvents = t.fetchEvents;
-       
-       
-       // locals
-       var _element = element[0];
-       var header;
-       var headerElement;
-       var content;
-       var tm; // for making theme classes
-       var currentView;
-       var viewInstances = {};
-       var elementOuterWidth;
-       var suggestedViewHeight;
-       var absoluteViewElement;
-       var resizeUID = 0;
-       var ignoreWindowResize = 0;
-       var date = new Date();
-       var events = [];
-       var _dragElement;
-       
-       
-       
-       /* Main Rendering
-       -----------------------------------------------------------------------------*/
-       
-       
-       setYMD(date, options.year, options.month, options.date);
-       
-       
-       function render(inc) {
-               if (!content) {
-                       initialRender();
-               }else{
-                       calcSize();
-                       markSizesDirty();
-                       markEventsDirty();
-                       renderView(inc);
-               }
-       }
-       
-       
-       function initialRender() {
-               tm = options.theme ? 'ui' : 'fc';
-               element.addClass('fc');
-               if (options.isRTL) {
-                       element.addClass('fc-rtl');
+
+// Given a total available height to fill, have `els` (essentially child rows) expand to accomodate.
+// By default, all elements that are shorter than the recommended height are expanded uniformly, not considering
+// any other els that are already too tall. if `shouldRedistribute` is on, it considers these tall rows and 
+// reduces the available height.
+function distributeHeight(els, availableHeight, shouldRedistribute) {
+
+       // *FLOORING NOTE*: we floor in certain places because zoom can give inaccurate floating-point dimensions,
+       // and it is better to be shorter than taller, to avoid creating unnecessary scrollbars.
+
+       var minOffset1 = Math.floor(availableHeight / els.length); // for non-last element
+       var minOffset2 = Math.floor(availableHeight - minOffset1 * (els.length - 1)); // for last element *FLOORING NOTE*
+       var flexEls = []; // elements that are allowed to expand. array of DOM nodes
+       var flexOffsets = []; // amount of vertical space it takes up
+       var flexHeights = []; // actual css height
+       var usedHeight = 0;
+
+       undistributeHeight(els); // give all elements their natural height
+
+       // find elements that are below the recommended height (expandable).
+       // important to query for heights in a single first pass (to avoid reflow oscillation).
+       els.each(function(i, el) {
+               var minOffset = i === els.length - 1 ? minOffset2 : minOffset1;
+               var naturalOffset = $(el).outerHeight(true);
+
+               if (naturalOffset < minOffset) {
+                       flexEls.push(el);
+                       flexOffsets.push(naturalOffset);
+                       flexHeights.push($(el).height());
                }
-               if (options.theme) {
-                       element.addClass('ui-widget');
+               else {
+                       // this element stretches past recommended height (non-expandable). mark the space as occupied.
+                       usedHeight += naturalOffset;
                }
-               content = $("<div class='fc-content' style='position:relative'/>")
-                       .prependTo(element);
-               header = new Header(t, options);
-               headerElement = header.render();
-               if (headerElement) {
-                       element.prepend(headerElement);
+       });
+
+       // readjust the recommended height to only consider the height available to non-maxed-out rows.
+       if (shouldRedistribute) {
+               availableHeight -= usedHeight;
+               minOffset1 = Math.floor(availableHeight / flexEls.length);
+               minOffset2 = Math.floor(availableHeight - minOffset1 * (flexEls.length - 1)); // *FLOORING NOTE*
+       }
+
+       // assign heights to all expandable elements
+       $(flexEls).each(function(i, el) {
+               var minOffset = i === flexEls.length - 1 ? minOffset2 : minOffset1;
+               var naturalOffset = flexOffsets[i];
+               var naturalHeight = flexHeights[i];
+               var newHeight = minOffset - (naturalOffset - naturalHeight); // subtract the margin/padding
+
+               if (naturalOffset < minOffset) { // we check this again because redistribution might have changed things
+                       $(el).height(newHeight);
                }
-               changeView(options.defaultView);
-               $(window).resize(windowResize);
-               // needed for IE in a 0x0 iframe, b/c when it is resized, never triggers a windowResize
-               if (!bodyVisible()) {
-                       lateRender();
+       });
+}
+
+
+// Undoes distrubuteHeight, restoring all els to their natural height
+function undistributeHeight(els) {
+       els.height('');
+}
+
+
+// Given `els`, a jQuery set of <td> cells, find the cell with the largest natural width and set the widths of all the
+// cells to be that width.
+// PREREQUISITE: if you want a cell to take up width, it needs to have a single inner element w/ display:inline
+function matchCellWidths(els) {
+       var maxInnerWidth = 0;
+
+       els.find('> *').each(function(i, innerEl) {
+               var innerWidth = $(innerEl).outerWidth();
+               if (innerWidth > maxInnerWidth) {
+                       maxInnerWidth = innerWidth;
                }
+       });
+
+       maxInnerWidth++; // sometimes not accurate of width the text needs to stay on one line. insurance
+
+       els.width(maxInnerWidth);
+
+       return maxInnerWidth;
+}
+
+
+// Given one element that resides inside another,
+// Subtracts the height of the inner element from the outer element.
+function subtractInnerElHeight(outerEl, innerEl) {
+       var both = outerEl.add(innerEl);
+       var diff;
+
+       // effin' IE8/9/10/11 sometimes returns 0 for dimensions. this weird hack was the only thing that worked
+       both.css({
+               position: 'relative', // cause a reflow, which will force fresh dimension recalculation
+               left: -1 // ensure reflow in case the el was already relative. negative is less likely to cause new scroll
+       });
+       diff = outerEl.outerHeight() - innerEl.outerHeight(); // grab the dimensions
+       both.css({ position: '', left: '' }); // undo hack
+
+       return diff;
+}
+
+
+/* Element Geom Utilities
+----------------------------------------------------------------------------------------------------------------------*/
+
+FC.getOuterRect = getOuterRect;
+FC.getClientRect = getClientRect;
+FC.getContentRect = getContentRect;
+FC.getScrollbarWidths = getScrollbarWidths;
+
+
+// borrowed from https://github.com/jquery/jquery-ui/blob/1.11.0/ui/core.js#L51
+function getScrollParent(el) {
+       var position = el.css('position'),
+               scrollParent = el.parents().filter(function() {
+                       var parent = $(this);
+                       return (/(auto|scroll)/).test(
+                               parent.css('overflow') + parent.css('overflow-y') + parent.css('overflow-x')
+                       );
+               }).eq(0);
+
+       return position === 'fixed' || !scrollParent.length ? $(el[0].ownerDocument || document) : scrollParent;
+}
+
+
+// Queries the outer bounding area of a jQuery element.
+// Returns a rectangle with absolute coordinates: left, right (exclusive), top, bottom (exclusive).
+// Origin is optional.
+function getOuterRect(el, origin) {
+       var offset = el.offset();
+       var left = offset.left - (origin ? origin.left : 0);
+       var top = offset.top - (origin ? origin.top : 0);
+
+       return {
+               left: left,
+               right: left + el.outerWidth(),
+               top: top,
+               bottom: top + el.outerHeight()
+       };
+}
+
+
+// Queries the area within the margin/border/scrollbars of a jQuery element. Does not go within the padding.
+// Returns a rectangle with absolute coordinates: left, right (exclusive), top, bottom (exclusive).
+// Origin is optional.
+// NOTE: should use clientLeft/clientTop, but very unreliable cross-browser.
+function getClientRect(el, origin) {
+       var offset = el.offset();
+       var scrollbarWidths = getScrollbarWidths(el);
+       var left = offset.left + getCssFloat(el, 'border-left-width') + scrollbarWidths.left - (origin ? origin.left : 0);
+       var top = offset.top + getCssFloat(el, 'border-top-width') + scrollbarWidths.top - (origin ? origin.top : 0);
+
+       return {
+               left: left,
+               right: left + el[0].clientWidth, // clientWidth includes padding but NOT scrollbars
+               top: top,
+               bottom: top + el[0].clientHeight // clientHeight includes padding but NOT scrollbars
+       };
+}
+
+
+// Queries the area within the margin/border/padding of a jQuery element. Assumed not to have scrollbars.
+// Returns a rectangle with absolute coordinates: left, right (exclusive), top, bottom (exclusive).
+// Origin is optional.
+function getContentRect(el, origin) {
+       var offset = el.offset(); // just outside of border, margin not included
+       var left = offset.left + getCssFloat(el, 'border-left-width') + getCssFloat(el, 'padding-left') -
+               (origin ? origin.left : 0);
+       var top = offset.top + getCssFloat(el, 'border-top-width') + getCssFloat(el, 'padding-top') -
+               (origin ? origin.top : 0);
+
+       return {
+               left: left,
+               right: left + el.width(),
+               top: top,
+               bottom: top + el.height()
+       };
+}
+
+
+// Returns the computed left/right/top/bottom scrollbar widths for the given jQuery element.
+// NOTE: should use clientLeft/clientTop, but very unreliable cross-browser.
+function getScrollbarWidths(el) {
+       var leftRightWidth = el.innerWidth() - el[0].clientWidth; // the paddings cancel out, leaving the scrollbars
+       var bottomWidth = el.innerHeight() - el[0].clientHeight; // "
+       var widths;
+
+       leftRightWidth = sanitizeScrollbarWidth(leftRightWidth);
+       bottomWidth = sanitizeScrollbarWidth(bottomWidth);
+
+       widths = { left: 0, right: 0, top: 0, bottom: bottomWidth };
+
+       if (getIsLeftRtlScrollbars() && el.css('direction') == 'rtl') { // is the scrollbar on the left side?
+               widths.left = leftRightWidth;
        }
-       
-       
-       // called when we know the calendar couldn't be rendered when it was initialized,
-       // but we think it's ready now
-       function lateRender() {
-               setTimeout(function() { // IE7 needs this so dimensions are calculated correctly
-                       if (!currentView.start && bodyVisible()) { // !currentView.start makes sure this never happens more than once
-                               renderView();
-                       }
-               },0);
+       else {
+               widths.right = leftRightWidth;
        }
-       
-       
-       function destroy() {
-               $(window).unbind('resize', windowResize);
-               header.destroy();
-               content.remove();
-               element.removeClass('fc fc-rtl ui-widget');
+
+       return widths;
+}
+
+
+// The scrollbar width computations in getScrollbarWidths are sometimes flawed when it comes to
+// retina displays, rounding, and IE11. Massage them into a usable value.
+function sanitizeScrollbarWidth(width) {
+       width = Math.max(0, width); // no negatives
+       width = Math.round(width);
+       return width;
+}
+
+
+// Logic for determining if, when the element is right-to-left, the scrollbar appears on the left side
+
+var _isLeftRtlScrollbars = null;
+
+function getIsLeftRtlScrollbars() { // responsible for caching the computation
+       if (_isLeftRtlScrollbars === null) {
+               _isLeftRtlScrollbars = computeIsLeftRtlScrollbars();
        }
-       
-       
-       
-       function elementVisible() {
-               return _element.offsetWidth !== 0;
+       return _isLeftRtlScrollbars;
+}
+
+function computeIsLeftRtlScrollbars() { // creates an offscreen test element, then removes it
+       var el = $('<div><div/></div>')
+               .css({
+                       position: 'absolute',
+                       top: -1000,
+                       left: 0,
+                       border: 0,
+                       padding: 0,
+                       overflow: 'scroll',
+                       direction: 'rtl'
+               })
+               .appendTo('body');
+       var innerEl = el.children();
+       var res = innerEl.offset().left > el.offset().left; // is the inner div shifted to accommodate a left scrollbar?
+       el.remove();
+       return res;
+}
+
+
+// Retrieves a jQuery element's computed CSS value as a floating-point number.
+// If the queried value is non-numeric (ex: IE can return "medium" for border width), will just return zero.
+function getCssFloat(el, prop) {
+       return parseFloat(el.css(prop)) || 0;
+}
+
+
+/* Mouse / Touch Utilities
+----------------------------------------------------------------------------------------------------------------------*/
+
+FC.preventDefault = preventDefault;
+
+
+// Returns a boolean whether this was a left mouse click and no ctrl key (which means right click on Mac)
+function isPrimaryMouseButton(ev) {
+       return ev.which == 1 && !ev.ctrlKey;
+}
+
+
+function getEvX(ev) {
+       var touches = ev.originalEvent.touches;
+
+       // on mobile FF, pageX for touch events is present, but incorrect,
+       // so, look at touch coordinates first.
+       if (touches && touches.length) {
+               return touches[0].pageX;
        }
-       
-       
-       function bodyVisible() {
-               return $('body')[0].offsetWidth !== 0;
+
+       return ev.pageX;
+}
+
+
+function getEvY(ev) {
+       var touches = ev.originalEvent.touches;
+
+       // on mobile FF, pageX for touch events is present, but incorrect,
+       // so, look at touch coordinates first.
+       if (touches && touches.length) {
+               return touches[0].pageY;
        }
-       
-       
-       
-       /* View Rendering
-       -----------------------------------------------------------------------------*/
-       
-       // TODO: improve view switching (still weird transition in IE, and FF has whiteout problem)
-       
-       function changeView(newViewName) {
-               if (!currentView || newViewName != currentView.name) {
-                       ignoreWindowResize++; // because setMinHeight might change the height before render (and subsequently setSize) is reached
 
-                       unselect();
-                       
-                       var oldView = currentView;
-                       var newViewElement;
-                               
-                       if (oldView) {
-                               (oldView.beforeHide || noop)(); // called before changing min-height. if called after, scroll state is reset (in Opera)
-                               setMinHeight(content, content.height());
-                               oldView.element.hide();
-                       }else{
-                               setMinHeight(content, 1); // needs to be 1 (not 0) for IE7, or else view dimensions miscalculated
-                       }
-                       content.css('overflow', 'hidden');
-                       
-                       currentView = viewInstances[newViewName];
-                       if (currentView) {
-                               currentView.element.show();
-                       }else{
-                               currentView = viewInstances[newViewName] = new fcViews[newViewName](
-                                       newViewElement = absoluteViewElement =
-                                               $("<div class='fc-view fc-view-" + newViewName + "' style='position:absolute'/>")
-                                                       .appendTo(content),
-                                       t // the calendar object
-                               );
-                       }
-                       
-                       if (oldView) {
-                               header.deactivateButton(oldView.name);
-                       }
-                       header.activateButton(newViewName);
-                       
-                       renderView(); // after height has been set, will make absoluteViewElement's position=relative, then set to null
-                       
-                       content.css('overflow', '');
-                       if (oldView) {
-                               setMinHeight(content, 1);
-                       }
-                       
-                       if (!newViewElement) {
-                               (currentView.afterShow || noop)(); // called after setting min-height/overflow, so in final scroll state (for Opera)
-                       }
-                       
-                       ignoreWindowResize--;
-               }
-       }
-       
-       
-       
-       function renderView(inc) {
-               if (elementVisible()) {
-                       ignoreWindowResize++; // because renderEvents might temporarily change the height before setSize is reached
+       return ev.pageY;
+}
 
-                       unselect();
-                       
-                       if (suggestedViewHeight === undefined) {
-                               calcSize();
-                       }
-                       
-                       var forceEventRender = false;
-                       if (!currentView.start || inc || date < currentView.start || date >= currentView.end) {
-                               // view must render an entire new date range (and refetch/render events)
-                               currentView.render(date, inc || 0); // responsible for clearing events
-                               setSize(true);
-                               forceEventRender = true;
-                       }
-                       else if (currentView.sizeDirty) {
-                               // view must resize (and rerender events)
-                               currentView.clearEvents();
-                               setSize();
-                               forceEventRender = true;
-                       }
-                       else if (currentView.eventsDirty) {
-                               currentView.clearEvents();
-                               forceEventRender = true;
-                       }
-                       currentView.sizeDirty = false;
-                       currentView.eventsDirty = false;
-                       updateEvents(forceEventRender);
-                       
-                       elementOuterWidth = element.outerWidth();
-                       
-                       header.updateTitle(currentView.title);
-                       var today = new Date();
-                       if (today >= currentView.start && today < currentView.end) {
-                               header.disableButton('today');
-                       }else{
-                               header.enableButton('today');
-                       }
-                       
-                       ignoreWindowResize--;
-                       currentView.trigger('viewDisplay', _element);
-               }
+
+function getEvIsTouch(ev) {
+       return /^touch/.test(ev.type);
+}
+
+
+function preventSelection(el) {
+       el.addClass('fc-unselectable')
+               .on('selectstart', preventDefault);
+}
+
+
+function allowSelection(el) {
+       el.removeClass('fc-unselectable')
+               .off('selectstart', preventDefault);
+}
+
+
+// Stops a mouse/touch event from doing it's native browser action
+function preventDefault(ev) {
+       ev.preventDefault();
+}
+
+
+/* General Geometry Utils
+----------------------------------------------------------------------------------------------------------------------*/
+
+FC.intersectRects = intersectRects;
+
+// Returns a new rectangle that is the intersection of the two rectangles. If they don't intersect, returns false
+function intersectRects(rect1, rect2) {
+       var res = {
+               left: Math.max(rect1.left, rect2.left),
+               right: Math.min(rect1.right, rect2.right),
+               top: Math.max(rect1.top, rect2.top),
+               bottom: Math.min(rect1.bottom, rect2.bottom)
+       };
+
+       if (res.left < res.right && res.top < res.bottom) {
+               return res;
        }
-       
-       
-       
-       /* Resizing
-       -----------------------------------------------------------------------------*/
-       
-       
-       function updateSize() {
-               markSizesDirty();
-               if (elementVisible()) {
-                       calcSize();
-                       setSize();
-                       unselect();
-                       currentView.clearEvents();
-                       currentView.renderEvents(events);
-                       currentView.sizeDirty = false;
-               }
+       return false;
+}
+
+
+// Returns a new point that will have been moved to reside within the given rectangle
+function constrainPoint(point, rect) {
+       return {
+               left: Math.min(Math.max(point.left, rect.left), rect.right),
+               top: Math.min(Math.max(point.top, rect.top), rect.bottom)
+       };
+}
+
+
+// Returns a point that is the center of the given rectangle
+function getRectCenter(rect) {
+       return {
+               left: (rect.left + rect.right) / 2,
+               top: (rect.top + rect.bottom) / 2
+       };
+}
+
+
+// Subtracts point2's coordinates from point1's coordinates, returning a delta
+function diffPoints(point1, point2) {
+       return {
+               left: point1.left - point2.left,
+               top: point1.top - point2.top
+       };
+}
+
+
+/* Object Ordering by Field
+----------------------------------------------------------------------------------------------------------------------*/
+
+FC.parseFieldSpecs = parseFieldSpecs;
+FC.compareByFieldSpecs = compareByFieldSpecs;
+FC.compareByFieldSpec = compareByFieldSpec;
+FC.flexibleCompare = flexibleCompare;
+
+
+function parseFieldSpecs(input) {
+       var specs = [];
+       var tokens = [];
+       var i, token;
+
+       if (typeof input === 'string') {
+               tokens = input.split(/\s*,\s*/);
        }
-       
-       
-       function markSizesDirty() {
-               $.each(viewInstances, function(i, inst) {
-                       inst.sizeDirty = true;
-               });
+       else if (typeof input === 'function') {
+               tokens = [ input ];
        }
-       
-       
-       function calcSize() {
-               if (options.contentHeight) {
-                       suggestedViewHeight = options.contentHeight;
-               }
-               else if (options.height) {
-                       suggestedViewHeight = options.height - (headerElement ? headerElement.height() : 0) - vsides(content);
-               }
-               else {
-                       suggestedViewHeight = Math.round(content.width() / Math.max(options.aspectRatio, .5));
-               }
+       else if ($.isArray(input)) {
+               tokens = input;
        }
-       
-       
-       function setSize(dateChanged) { // todo: dateChanged?
-               ignoreWindowResize++;
-               currentView.setHeight(suggestedViewHeight, dateChanged);
-               if (absoluteViewElement) {
-                       absoluteViewElement.css('position', 'relative');
-                       absoluteViewElement = null;
+
+       for (i = 0; i < tokens.length; i++) {
+               token = tokens[i];
+
+               if (typeof token === 'string') {
+                       specs.push(
+                               token.charAt(0) == '-' ?
+                                       { field: token.substring(1), order: -1 } :
+                                       { field: token, order: 1 }
+                       );
                }
-               currentView.setWidth(content.width(), dateChanged);
-               ignoreWindowResize--;
-       }
-       
-       
-       function windowResize() {
-               if (!ignoreWindowResize) {
-                       if (currentView.start) { // view has already been rendered
-                               var uid = ++resizeUID;
-                               setTimeout(function() { // add a delay
-                                       if (uid == resizeUID && !ignoreWindowResize && elementVisible()) {
-                                               if (elementOuterWidth != (elementOuterWidth = element.outerWidth())) {
-                                                       ignoreWindowResize++; // in case the windowResize callback changes the height
-                                                       updateSize();
-                                                       currentView.trigger('windowResize', _element);
-                                                       ignoreWindowResize--;
-                                               }
-                                       }
-                               }, 200);
-                       }else{
-                               // calendar must have been initialized in a 0x0 iframe that has just been resized
-                               lateRender();
-                       }
+               else if (typeof token === 'function') {
+                       specs.push({ func: token });
                }
        }
-       
-       
-       
-       /* Event Fetching/Rendering
-       -----------------------------------------------------------------------------*/
-       
-       
-       // fetches events if necessary, rerenders events if necessary (or if forced)
-       function updateEvents(forceRender) {
-               if (!options.lazyFetching || isFetchNeeded(currentView.visStart, currentView.visEnd)) {
-                       refetchEvents();
-               }
-               else if (forceRender) {
-                       rerenderEvents();
+
+       return specs;
+}
+
+
+function compareByFieldSpecs(obj1, obj2, fieldSpecs) {
+       var i;
+       var cmp;
+
+       for (i = 0; i < fieldSpecs.length; i++) {
+               cmp = compareByFieldSpec(obj1, obj2, fieldSpecs[i]);
+               if (cmp) {
+                       return cmp;
                }
        }
-       
-       
-       function refetchEvents() {
-               fetchEvents(currentView.visStart, currentView.visEnd); // will call reportEvents
+
+       return 0;
+}
+
+
+function compareByFieldSpec(obj1, obj2, fieldSpec) {
+       if (fieldSpec.func) {
+               return fieldSpec.func(obj1, obj2);
        }
-       
-       
-       // called when event data arrives
-       function reportEvents(_events) {
-               events = _events;
-               rerenderEvents();
+       return flexibleCompare(obj1[fieldSpec.field], obj2[fieldSpec.field]) *
+               (fieldSpec.order || 1);
+}
+
+
+function flexibleCompare(a, b) {
+       if (!a && !b) {
+               return 0;
        }
-       
-       
-       // called when a single event's data has been changed
-       function reportEventChange(eventID) {
-               rerenderEvents(eventID);
+       if (b == null) {
+               return -1;
        }
-       
-       
-       // attempts to rerenderEvents
-       function rerenderEvents(modifiedEventID) {
-               markEventsDirty();
-               if (elementVisible()) {
-                       currentView.clearEvents();
-                       currentView.renderEvents(events, modifiedEventID);
-                       currentView.eventsDirty = false;
-               }
+       if (a == null) {
+               return 1;
        }
-       
-       
-       function markEventsDirty() {
-               $.each(viewInstances, function(i, inst) {
-                       inst.eventsDirty = true;
-               });
+       if ($.type(a) === 'string' || $.type(b) === 'string') {
+               return String(a).localeCompare(String(b));
        }
-       
+       return a - b;
+}
 
 
-       /* Selection
-       -----------------------------------------------------------------------------*/
-       
+/* FullCalendar-specific Misc Utilities
+----------------------------------------------------------------------------------------------------------------------*/
 
-       function select(start, end, allDay) {
-               currentView.select(start, end, allDay===undefined ? true : allDay);
-       }
-       
 
-       function unselect() { // safe to be called before renderView
-               if (currentView) {
-                       currentView.unselect();
+// Computes the intersection of the two ranges. Will return fresh date clones in a range.
+// Returns undefined if no intersection.
+// Expects all dates to be normalized to the same timezone beforehand.
+// TODO: move to date section?
+function intersectRanges(subjectRange, constraintRange) {
+       var subjectStart = subjectRange.start;
+       var subjectEnd = subjectRange.end;
+       var constraintStart = constraintRange.start;
+       var constraintEnd = constraintRange.end;
+       var segStart, segEnd;
+       var isStart, isEnd;
+
+       if (subjectEnd > constraintStart && subjectStart < constraintEnd) { // in bounds at all?
+
+               if (subjectStart >= constraintStart) {
+                       segStart = subjectStart.clone();
+                       isStart = true;
                }
-       }
-       
-       
-       
-       /* Date
-       -----------------------------------------------------------------------------*/
-       
-       
-       function prev() {
-               renderView(-1);
-       }
-       
-       
-       function next() {
-               renderView(1);
-       }
-       
-       
-       function prevYear() {
-               addYears(date, -1);
-               renderView();
-       }
-       
-       
-       function nextYear() {
-               addYears(date, 1);
-               renderView();
-       }
-       
-       
-       function today() {
-               date = new Date();
-               renderView();
-       }
-       
-       
-       function gotoDate(year, month, dateOfMonth) {
-               if (year instanceof Date) {
-                       date = cloneDate(year); // provided 1 argument, a Date
-               }else{
-                       setYMD(date, year, month, dateOfMonth);
+               else {
+                       segStart = constraintStart.clone();
+                       isStart =  false;
                }
-               renderView();
-       }
-       
-       
-       function incrementDate(years, months, days) {
-               if (years !== undefined) {
-                       addYears(date, years);
+
+               if (subjectEnd <= constraintEnd) {
+                       segEnd = subjectEnd.clone();
+                       isEnd = true;
                }
-               if (months !== undefined) {
-                       addMonths(date, months);
+               else {
+                       segEnd = constraintEnd.clone();
+                       isEnd = false;
                }
-               if (days !== undefined) {
-                       addDays(date, days);
+
+               return {
+                       start: segStart,
+                       end: segEnd,
+                       isStart: isStart,
+                       isEnd: isEnd
+               };
+       }
+}
+
+
+/* Date Utilities
+----------------------------------------------------------------------------------------------------------------------*/
+
+FC.computeIntervalUnit = computeIntervalUnit;
+FC.divideRangeByDuration = divideRangeByDuration;
+FC.divideDurationByDuration = divideDurationByDuration;
+FC.multiplyDuration = multiplyDuration;
+FC.durationHasTime = durationHasTime;
+
+var dayIDs = [ 'sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat' ];
+var intervalUnits = [ 'year', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond' ];
+
+
+// Diffs the two moments into a Duration where full-days are recorded first, then the remaining time.
+// Moments will have their timezones normalized.
+function diffDayTime(a, b) {
+       return moment.duration({
+               days: a.clone().stripTime().diff(b.clone().stripTime(), 'days'),
+               ms: a.time() - b.time() // time-of-day from day start. disregards timezone
+       });
+}
+
+
+// Diffs the two moments via their start-of-day (regardless of timezone). Produces whole-day durations.
+function diffDay(a, b) {
+       return moment.duration({
+               days: a.clone().stripTime().diff(b.clone().stripTime(), 'days')
+       });
+}
+
+
+// Diffs two moments, producing a duration, made of a whole-unit-increment of the given unit. Uses rounding.
+function diffByUnit(a, b, unit) {
+       return moment.duration(
+               Math.round(a.diff(b, unit, true)), // returnFloat=true
+               unit
+       );
+}
+
+
+// Computes the unit name of the largest whole-unit period of time.
+// For example, 48 hours will be "days" whereas 49 hours will be "hours".
+// Accepts start/end, a range object, or an original duration object.
+function computeIntervalUnit(start, end) {
+       var i, unit;
+       var val;
+
+       for (i = 0; i < intervalUnits.length; i++) {
+               unit = intervalUnits[i];
+               val = computeRangeAs(unit, start, end);
+
+               if (val >= 1 && isInt(val)) {
+                       break;
                }
-               renderView();
        }
-       
-       
-       function getDate() {
-               return cloneDate(date);
+
+       return unit; // will be "milliseconds" if nothing else matches
+}
+
+
+// Computes the number of units (like "hours") in the given range.
+// Range can be a {start,end} object, separate start/end args, or a Duration.
+// Results are based on Moment's .as() and .diff() methods, so results can depend on internal handling
+// of month-diffing logic (which tends to vary from version to version).
+function computeRangeAs(unit, start, end) {
+
+       if (end != null) { // given start, end
+               return end.diff(start, unit, true);
        }
-       
-       
-       
-       /* Misc
-       -----------------------------------------------------------------------------*/
-       
-       
-       function getView() {
-               return currentView;
+       else if (moment.isDuration(start)) { // given duration
+               return start.as(unit);
        }
-       
-       
-       function option(name, value) {
-               if (value === undefined) {
-                       return options[name];
-               }
-               if (name == 'height' || name == 'contentHeight' || name == 'aspectRatio') {
-                       options[name] = value;
-                       updateSize();
-               }
+       else { // given { start, end } range object
+               return start.end.diff(start.start, unit, true);
        }
-       
-       
-       function trigger(name, thisObj) {
-               if (options[name]) {
-                       return options[name].apply(
-                               thisObj || _element,
-                               Array.prototype.slice.call(arguments, 2)
-                       );
-               }
+}
+
+
+// Intelligently divides a range (specified by a start/end params) by a duration
+function divideRangeByDuration(start, end, dur) {
+       var months;
+
+       if (durationHasTime(dur)) {
+               return (end - start) / dur;
        }
-       
-       
-       
-       /* External Dragging
-       ------------------------------------------------------------------------*/
-       
-       if (options.droppable) {
-               $(document)
-                       .bind('dragstart', function(ev, ui) {
-                               var _e = ev.target;
-                               var e = $(_e);
-                               if (!e.parents('.fc').length) { // not already inside a calendar
-                                       var accept = options.dropAccept;
-                                       if ($.isFunction(accept) ? accept.call(_e, e) : e.is(accept)) {
-                                               _dragElement = _e;
-                                               currentView.dragStart(_dragElement, ev, ui);
-                                       }
-                               }
-                       })
-                       .bind('dragstop', function(ev, ui) {
-                               if (_dragElement) {
-                                       currentView.dragStop(_dragElement, ev, ui);
-                                       _dragElement = null;
-                               }
-                       });
+       months = dur.asMonths();
+       if (Math.abs(months) >= 1 && isInt(months)) {
+               return end.diff(start, 'months', true) / months;
        }
-       
+       return end.diff(start, 'days', true) / dur.asDays();
+}
 
+
+// Intelligently divides one duration by another
+function divideDurationByDuration(dur1, dur2) {
+       var months1, months2;
+
+       if (durationHasTime(dur1) || durationHasTime(dur2)) {
+               return dur1 / dur2;
+       }
+       months1 = dur1.asMonths();
+       months2 = dur2.asMonths();
+       if (
+               Math.abs(months1) >= 1 && isInt(months1) &&
+               Math.abs(months2) >= 1 && isInt(months2)
+       ) {
+               return months1 / months2;
+       }
+       return dur1.asDays() / dur2.asDays();
 }
 
-function Header(calendar, options) {
-       var t = this;
-       
-       
-       // exports
-       t.render = render;
-       t.destroy = destroy;
-       t.updateTitle = updateTitle;
-       t.activateButton = activateButton;
-       t.deactivateButton = deactivateButton;
-       t.disableButton = disableButton;
-       t.enableButton = enableButton;
-       
-       
-       // locals
-       var element = $([]);
-       var tm;
-       
 
+// Intelligently multiplies a duration by a number
+function multiplyDuration(dur, n) {
+       var months;
 
-       function render() {
-               tm = options.theme ? 'ui' : 'fc';
-               var sections = options.header;
-               if (sections) {
-                       element = $("<table class='fc-header' style='width:100%'/>")
-                               .append(
-                                       $("<tr/>")
-                                               .append(renderSection('left'))
-                                               .append(renderSection('center'))
-                                               .append(renderSection('right'))
-                               );
-                       return element;
-               }
-       }
-       
-       
-       function destroy() {
-               element.remove();
-       }
-       
-       
-       function renderSection(position) {
-               var e = $("<td class='fc-header-" + position + "'/>");
-               var buttonStr = options.header[position];
-               if (buttonStr) {
-                       $.each(buttonStr.split(' '), function(i) {
-                               if (i > 0) {
-                                       e.append("<span class='fc-header-space'/>");
-                               }
-                               var prevButton;
-                               $.each(this.split(','), function(j, buttonName) {
-                                       if (buttonName == 'title') {
-                                               e.append("<span class='fc-header-title'><h2>&nbsp;</h2></span>");
-                                               if (prevButton) {
-                                                       prevButton.addClass(tm + '-corner-right');
-                                               }
-                                               prevButton = null;
-                                       }else{
-                                               var buttonClick;
-                                               if (calendar[buttonName]) {
-                                                       buttonClick = calendar[buttonName]; // calendar method
-                                               }
-                                               else if (fcViews[buttonName]) {
-                                                       buttonClick = function() {
-                                                               button.removeClass(tm + '-state-hover'); // forget why
-                                                               calendar.changeView(buttonName);
-                                                       };
-                                               }
-                                               if (buttonClick) {
-                                                       var icon = options.theme ? smartProperty(options.buttonIcons, buttonName) : null;
-                                                       var text = smartProperty(options.buttonText, buttonName);
-                                                       var button = $(
-                                                               "<span class='fc-button fc-button-" + buttonName + " " + tm + "-state-default'>" +
-                                                                       "<span class='fc-button-inner'>" +
-                                                                               "<span class='fc-button-content'>" +
-                                                                                       (icon ?
-                                                                                               "<span class='fc-icon-wrap'>" +
-                                                                                                       "<span class='ui-icon ui-icon-" + icon + "'/>" +
-                                                                                               "</span>" :
-                                                                                               text
-                                                                                               ) +
-                                                                               "</span>" +
-                                                                               "<span class='fc-button-effect'><span></span></span>" +
-                                                                       "</span>" +
-                                                               "</span>"
-                                                       );
-                                                       if (button) {
-                                                               button
-                                                                       .click(function() {
-                                                                               if (!button.hasClass(tm + '-state-disabled')) {
-                                                                                       buttonClick();
-                                                                               }
-                                                                       })
-                                                                       .mousedown(function() {
-                                                                               button
-                                                                                       .not('.' + tm + '-state-active')
-                                                                                       .not('.' + tm + '-state-disabled')
-                                                                                       .addClass(tm + '-state-down');
-                                                                       })
-                                                                       .mouseup(function() {
-                                                                               button.removeClass(tm + '-state-down');
-                                                                       })
-                                                                       .hover(
-                                                                               function() {
-                                                                                       button
-                                                                                               .not('.' + tm + '-state-active')
-                                                                                               .not('.' + tm + '-state-disabled')
-                                                                                               .addClass(tm + '-state-hover');
-                                                                               },
-                                                                               function() {
-                                                                                       button
-                                                                                               .removeClass(tm + '-state-hover')
-                                                                                               .removeClass(tm + '-state-down');
-                                                                               }
-                                                                       )
-                                                                       .appendTo(e);
-                                                               if (!prevButton) {
-                                                                       button.addClass(tm + '-corner-left');
-                                                               }
-                                                               prevButton = button;
-                                                       }
-                                               }
-                                       }
-                               });
-                               if (prevButton) {
-                                       prevButton.addClass(tm + '-corner-right');
-                               }
-                       });
-               }
-               return e;
-       }
-       
-       
-       function updateTitle(html) {
-               element.find('h2')
-                       .html(html);
-       }
-       
-       
-       function activateButton(buttonName) {
-               element.find('span.fc-button-' + buttonName)
-                       .addClass(tm + '-state-active');
-       }
-       
-       
-       function deactivateButton(buttonName) {
-               element.find('span.fc-button-' + buttonName)
-                       .removeClass(tm + '-state-active');
-       }
-       
-       
-       function disableButton(buttonName) {
-               element.find('span.fc-button-' + buttonName)
-                       .addClass(tm + '-state-disabled');
+       if (durationHasTime(dur)) {
+               return moment.duration(dur * n);
        }
-       
-       
-       function enableButton(buttonName) {
-               element.find('span.fc-button-' + buttonName)
-                       .removeClass(tm + '-state-disabled');
+       months = dur.asMonths();
+       if (Math.abs(months) >= 1 && isInt(months)) {
+               return moment.duration({ months: months * n });
        }
+       return moment.duration({ days: dur.asDays() * n });
+}
 
 
+// Returns a boolean about whether the given duration has any time parts (hours/minutes/seconds/ms)
+function durationHasTime(dur) {
+       return Boolean(dur.hours() || dur.minutes() || dur.seconds() || dur.milliseconds());
 }
 
-fc.sourceNormalizers = [];
-fc.sourceFetchers = [];
 
-var ajaxDefaults = {
-       dataType: 'json',
-       cache: false
-};
+function isNativeDate(input) {
+       return  Object.prototype.toString.call(input) === '[object Date]' || input instanceof Date;
+}
 
-var eventGUID = 1;
 
+// Returns a boolean about whether the given input is a time string, like "06:40:00" or "06:00"
+function isTimeString(str) {
+       return /^\d+\:\d+(?:\:\d+\.?(?:\d{3})?)?$/.test(str);
+}
 
-function EventManager(options, _sources) {
-       var t = this;
-       
-       
-       // exports
-       t.isFetchNeeded = isFetchNeeded;
-       t.fetchEvents = fetchEvents;
-       t.addEventSource = addEventSource;
-       t.removeEventSource = removeEventSource;
-       t.updateEvent = updateEvent;
-       t.renderEvent = renderEvent;
-       t.removeEvents = removeEvents;
-       t.clientEvents = clientEvents;
-       t.normalizeEvent = normalizeEvent;
-       
-       
-       // imports
-       var trigger = t.trigger;
-       var getView = t.getView;
-       var reportEvents = t.reportEvents;
-       
-       
-       // locals
-       var stickySource = { events: [] };
-       var sources = [ stickySource ];
-       var rangeStart, rangeEnd;
-       var currentFetchID = 0;
-       var pendingSourceCnt = 0;
-       var loadingLevel = 0;
-       var cache = [];
-       
-       
-       for (var i=0; i<_sources.length; i++) {
-               _addEventSource(_sources[i]);
+
+/* Logging and Debug
+----------------------------------------------------------------------------------------------------------------------*/
+
+FC.log = function() {
+       var console = window.console;
+
+       if (console && console.log) {
+               return console.log.apply(console, arguments);
        }
-       
-       
-       
-       /* Fetching
-       -----------------------------------------------------------------------------*/
-       
-       
-       function isFetchNeeded(start, end) {
-               return !rangeStart || start < rangeStart || end > rangeEnd;
+};
+
+FC.warn = function() {
+       var console = window.console;
+
+       if (console && console.warn) {
+               return console.warn.apply(console, arguments);
        }
-       
-       
-       function fetchEvents(start, end) {
-               rangeStart = start;
-               rangeEnd = end;
-               cache = [];
-               var fetchID = ++currentFetchID;
-               var len = sources.length;
-               pendingSourceCnt = len;
-               for (var i=0; i<len; i++) {
-                       fetchEventSource(sources[i], fetchID);
-               }
+       else {
+               return FC.log.apply(FC, arguments);
        }
-       
-       
-       function fetchEventSource(source, fetchID) {
-               _fetchEventSource(source, function(events) {
-                       if (fetchID == currentFetchID) {
-                               if (events) {
-                                       for (var i=0; i<events.length; i++) {
-                                               events[i].source = source;
-                                               normalizeEvent(events[i]);
-                                       }
-                                       cache = cache.concat(events);
+};
+
+
+/* General Utilities
+----------------------------------------------------------------------------------------------------------------------*/
+
+var hasOwnPropMethod = {}.hasOwnProperty;
+
+
+// Merges an array of objects into a single object.
+// The second argument allows for an array of property names who's object values will be merged together.
+function mergeProps(propObjs, complexProps) {
+       var dest = {};
+       var i, name;
+       var complexObjs;
+       var j, val;
+       var props;
+
+       if (complexProps) {
+               for (i = 0; i < complexProps.length; i++) {
+                       name = complexProps[i];
+                       complexObjs = [];
+
+                       // collect the trailing object values, stopping when a non-object is discovered
+                       for (j = propObjs.length - 1; j >= 0; j--) {
+                               val = propObjs[j][name];
+
+                               if (typeof val === 'object') {
+                                       complexObjs.unshift(val);
                                }
-                               pendingSourceCnt--;
-                               if (!pendingSourceCnt) {
-                                       reportEvents(cache);
+                               else if (val !== undefined) {
+                                       dest[name] = val; // if there were no objects, this value will be used
+                                       break;
                                }
                        }
-               });
-       }
-       
-       
-       function _fetchEventSource(source, callback) {
-               var i;
-               var fetchers = fc.sourceFetchers;
-               var res;
-               for (i=0; i<fetchers.length; i++) {
-                       res = fetchers[i](source, rangeStart, rangeEnd, callback);
-                       if (res === true) {
-                               // the fetcher is in charge. made its own async request
-                               return;
-                       }
-                       else if (typeof res == 'object') {
-                               // the fetcher returned a new source. process it
-                               _fetchEventSource(res, callback);
-                               return;
+
+                       // if the trailing values were objects, use the merged value
+                       if (complexObjs.length) {
+                               dest[name] = mergeProps(complexObjs);
                        }
                }
-               var events = source.events;
-               if (events) {
-                       if ($.isFunction(events)) {
-                               pushLoading();
-                               events(cloneDate(rangeStart), cloneDate(rangeEnd), function(events) {
-                                       callback(events);
-                                       popLoading();
-                               });
-                       }
-                       else if ($.isArray(events)) {
-                               callback(events);
-                       }
-                       else {
-                               callback();
-                       }
-               }else{
-                       var url = source.url;
-                       if (url) {
-                               var success = source.success;
-                               var error = source.error;
-                               var complete = source.complete;
-                               var data = $.extend({}, source.data || {});
-                               var startParam = firstDefined(source.startParam, options.startParam);
-                               var endParam = firstDefined(source.endParam, options.endParam);
-                               if (startParam) {
-                                       data[startParam] = Math.round(+rangeStart / 1000);
-                               }
-                               if (endParam) {
-                                       data[endParam] = Math.round(+rangeEnd / 1000);
-                               }
-                               pushLoading();
-                               $.ajax($.extend({}, ajaxDefaults, source, {
-                                       data: data,
-                                       success: function(events) {
-                                               events = events || [];
-                                               var res = applyAll(success, this, arguments);
-                                               if ($.isArray(res)) {
-                                                       events = res;
-                                               }
-                                               callback(events);
-                                       },
-                                       error: function() {
-                                               applyAll(error, this, arguments);
-                                               callback();
-                                       },
-                                       complete: function() {
-                                               applyAll(complete, this, arguments);
-                                               popLoading();
-                                       }
-                               }));
-                       }else{
-                               callback();
+       }
+
+       // copy values into the destination, going from last to first
+       for (i = propObjs.length - 1; i >= 0; i--) {
+               props = propObjs[i];
+
+               for (name in props) {
+                       if (!(name in dest)) { // if already assigned by previous props or complex props, don't reassign
+                               dest[name] = props[name];
                        }
                }
        }
-       
-       
-       
-       /* Sources
-       -----------------------------------------------------------------------------*/
-       
 
-       function addEventSource(source) {
-               source = _addEventSource(source);
-               if (source) {
-                       pendingSourceCnt++;
-                       fetchEventSource(source, currentFetchID); // will eventually call reportEvents
+       return dest;
+}
+
+
+// Create an object that has the given prototype. Just like Object.create
+function createObject(proto) {
+       var f = function() {};
+       f.prototype = proto;
+       return new f();
+}
+FC.createObject = createObject;
+
+
+function copyOwnProps(src, dest) {
+       for (var name in src) {
+               if (hasOwnProp(src, name)) {
+                       dest[name] = src[name];
                }
        }
-       
-       
-       function _addEventSource(source) {
-               if ($.isFunction(source) || $.isArray(source)) {
-                       source = { events: source };
-               }
-               else if (typeof source == 'string') {
-                       source = { url: source };
-               }
-               if (typeof source == 'object') {
-                       normalizeSource(source);
-                       sources.push(source);
-                       return source;
+}
+
+
+function hasOwnProp(obj, name) {
+       return hasOwnPropMethod.call(obj, name);
+}
+
+
+// Is the given value a non-object non-function value?
+function isAtomic(val) {
+       return /undefined|null|boolean|number|string/.test($.type(val));
+}
+
+
+function applyAll(functions, thisObj, args) {
+       if ($.isFunction(functions)) {
+               functions = [ functions ];
+       }
+       if (functions) {
+               var i;
+               var ret;
+               for (i=0; i<functions.length; i++) {
+                       ret = functions[i].apply(thisObj, args) || ret;
                }
+               return ret;
        }
-       
+}
 
-       function removeEventSource(source) {
-               sources = $.grep(sources, function(src) {
-                       return !isSourcesEqual(src, source);
-               });
-               // remove all client events from that source
-               cache = $.grep(cache, function(e) {
-                       return !isSourcesEqual(e.source, source);
-               });
-               reportEvents(cache);
-       }
-       
-       
-       
-       /* Manipulation
-       -----------------------------------------------------------------------------*/
-       
-       
-       function updateEvent(event) { // update an existing event
-               var i, len = cache.length, e,
-                       defaultEventEnd = getView().defaultEventEnd, // getView???
-                       startDelta = event.start - event._start,
-                       endDelta = event.end ?
-                               (event.end - (event._end || defaultEventEnd(event))) // event._end would be null if event.end
-                               : 0;                                                      // was null and event was just resized
-               for (i=0; i<len; i++) {
-                       e = cache[i];
-                       if (e._id == event._id && e != event) {
-                               e.start = new Date(+e.start + startDelta);
-                               if (event.end) {
-                                       if (e.end) {
-                                               e.end = new Date(+e.end + endDelta);
-                                       }else{
-                                               e.end = new Date(+defaultEventEnd(e) + endDelta);
-                                       }
-                               }else{
-                                       e.end = null;
-                               }
-                               e.title = event.title;
-                               e.url = event.url;
-                               e.allDay = event.allDay;
-                               e.className = event.className;
-                               e.editable = event.editable;
-                               e.color = event.color;
-                               e.backgroudColor = event.backgroudColor;
-                               e.borderColor = event.borderColor;
-                               e.textColor = event.textColor;
-                               normalizeEvent(e);
-                       }
+
+function firstDefined() {
+       for (var i=0; i<arguments.length; i++) {
+               if (arguments[i] !== undefined) {
+                       return arguments[i];
                }
-               normalizeEvent(event);
-               reportEvents(cache);
        }
-       
-       
-       function renderEvent(event, stick) {
-               normalizeEvent(event);
-               if (!event.source) {
-                       if (stick) {
-                               stickySource.events.push(event);
-                               event.source = stickySource;
-                       }
-                       cache.push(event);
-               }
-               reportEvents(cache);
-       }
-       
-       
-       function removeEvents(filter) {
-               if (!filter) { // remove all
-                       cache = [];
-                       // clear all array sources
-                       for (var i=0; i<sources.length; i++) {
-                               if ($.isArray(sources[i].events)) {
-                                       sources[i].events = [];
-                               }
-                       }
-               }else{
-                       if (!$.isFunction(filter)) { // an event ID
-                               var id = filter + '';
-                               filter = function(e) {
-                                       return e._id == id;
-                               };
-                       }
-                       cache = $.grep(cache, filter, true);
-                       // remove events from array sources
-                       for (var i=0; i<sources.length; i++) {
-                               if ($.isArray(sources[i].events)) {
-                                       sources[i].events = $.grep(sources[i].events, filter, true);
-                               }
-                       }
-               }
-               reportEvents(cache);
-       }
-       
-       
-       function clientEvents(filter) {
-               if ($.isFunction(filter)) {
-                       return $.grep(cache, filter);
-               }
-               else if (filter) { // an event ID
-                       filter += '';
-                       return $.grep(cache, function(e) {
-                               return e._id == filter;
-                       });
-               }
-               return cache; // else, return all
-       }
-       
-       
-       
-       /* Loading State
-       -----------------------------------------------------------------------------*/
-       
-       
-       function pushLoading() {
-               if (!loadingLevel++) {
-                       trigger('loading', null, true);
-               }
-       }
-       
-       
-       function popLoading() {
-               if (!--loadingLevel) {
-                       trigger('loading', null, false);
-               }
-       }
-       
-       
-       
-       /* Event Normalization
-       -----------------------------------------------------------------------------*/
-       
-       
-       function normalizeEvent(event) {
-               var source = event.source || {};
-               var ignoreTimezone = firstDefined(source.ignoreTimezone, options.ignoreTimezone);
-               event._id = event._id || (event.id === undefined ? '_fc' + eventGUID++ : event.id + '');
-               if (event.date) {
-                       if (!event.start) {
-                               event.start = event.date;
-                       }
-                       delete event.date;
-               }
-               event._start = cloneDate(event.start = parseDate(event.start, ignoreTimezone));
-               event.end = parseDate(event.end, ignoreTimezone);
-               if (event.end && event.end <= event.start) {
-                       event.end = null;
-               }
-               event._end = event.end ? cloneDate(event.end) : null;
-               if (event.allDay === undefined) {
-                       event.allDay = firstDefined(source.allDayDefault, options.allDayDefault);
-               }
-               if (event.className) {
-                       if (typeof event.className == 'string') {
-                               event.className = event.className.split(/\s+/);
-                       }
-               }else{
-                       event.className = [];
-               }
-               // TODO: if there is no start date, return false to indicate an invalid event
-       }
-       
-       
-       
-       /* Utils
-       ------------------------------------------------------------------------------*/
-       
-       
-       function normalizeSource(source) {
-               if (source.className) {
-                       // TODO: repeat code, same code for event classNames
-                       if (typeof source.className == 'string') {
-                               source.className = source.className.split(/\s+/);
-                       }
-               }else{
-                       source.className = [];
-               }
-               var normalizers = fc.sourceNormalizers;
-               for (var i=0; i<normalizers.length; i++) {
-                       normalizers[i](source);
-               }
-       }
-       
-       
-       function isSourcesEqual(source1, source2) {
-               return source1 && source2 && getSourcePrimitive(source1) == getSourcePrimitive(source2);
-       }
-       
-       
-       function getSourcePrimitive(source) {
-               return ((typeof source == 'object') ? (source.events || source.url) : '') || source;
-       }
-
-
 }
 
 
-fc.addDays = addDays;
-fc.cloneDate = cloneDate;
-fc.parseDate = parseDate;
-fc.parseISO8601 = parseISO8601;
-fc.parseTime = parseTime;
-fc.formatDate = formatDate;
-fc.formatDates = formatDates;
-
-
-
-/* Date Math
------------------------------------------------------------------------------*/
-
-var dayIDs = ['sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat'],
-       DAY_MS = 86400000,
-       HOUR_MS = 3600000,
-       MINUTE_MS = 60000;
-       
-
-function addYears(d, n, keepTime) {
-       d.setFullYear(d.getFullYear() + n);
-       if (!keepTime) {
-               clearTime(d);
-       }
-       return d;
+function htmlEscape(s) {
+       return (s + '').replace(/&/g, '&amp;')
+               .replace(/</g, '&lt;')
+               .replace(/>/g, '&gt;')
+               .replace(/'/g, '&#039;')
+               .replace(/"/g, '&quot;')
+               .replace(/\n/g, '<br />');
 }
 
 
-function addMonths(d, n, keepTime) { // prevents day overflow/underflow
-       if (+d) { // prevent infinite looping on invalid dates
-               var m = d.getMonth() + n,
-                       check = cloneDate(d);
-               check.setDate(1);
-               check.setMonth(m);
-               d.setMonth(m);
-               if (!keepTime) {
-                       clearTime(d);
-               }
-               while (d.getMonth() != check.getMonth()) {
-                       d.setDate(d.getDate() + (d < check ? 1 : -1));
-               }
-       }
-       return d;
+function stripHtmlEntities(text) {
+       return text.replace(/&.*?;/g, '');
 }
 
 
-function addDays(d, n, keepTime) { // deals with daylight savings
-       if (+d) {
-               var dd = d.getDate() + n,
-                       check = cloneDate(d);
-               check.setHours(9); // set to middle of day
-               check.setDate(dd);
-               d.setDate(dd);
-               if (!keepTime) {
-                       clearTime(d);
-               }
-               fixDate(d, check);
-       }
-       return d;
-}
-
+// Given a hash of CSS properties, returns a string of CSS.
+// Uses property names as-is (no camel-case conversion). Will not make statements for null/undefined values.
+function cssToStr(cssProps) {
+       var statements = [];
 
-function fixDate(d, check) { // force d to be on check's YMD, for daylight savings purposes
-       if (+d) { // prevent infinite looping on invalid dates
-               while (d.getDate() != check.getDate()) {
-                       d.setTime(+d + (d < check ? 1 : -1) * HOUR_MS);
+       $.each(cssProps, function(name, val) {
+               if (val != null) {
+                       statements.push(name + ':' + val);
                }
-       }
-}
-
+       });
 
-function addMinutes(d, n) {
-       d.setMinutes(d.getMinutes() + n);
-       return d;
+       return statements.join(';');
 }
 
 
-function clearTime(d) {
-       d.setHours(0);
-       d.setMinutes(0);
-       d.setSeconds(0); 
-       d.setMilliseconds(0);
-       return d;
-}
+// Given an object hash of HTML attribute names to values,
+// generates a string that can be injected between < > in HTML
+function attrsToStr(attrs) {
+       var parts = [];
 
+       $.each(attrs, function(name, val) {
+               if (val != null) {
+                       parts.push(name + '="' + htmlEscape(val) + '"');
+               }
+       });
 
-function cloneDate(d, dontKeepTime) {
-       if (dontKeepTime) {
-               return clearTime(new Date(+d));
-       }
-       return new Date(+d);
+       return parts.join(' ');
 }
 
 
-function zeroDate() { // returns a Date with time 00:00:00 and dateOfMonth=1
-       var i=0, d;
-       do {
-               d = new Date(1970, i++, 1);
-       } while (d.getHours()); // != 0
-       return d;
+function capitaliseFirstLetter(str) {
+       return str.charAt(0).toUpperCase() + str.slice(1);
 }
 
 
-function skipWeekend(date, inc, excl) {
-       inc = inc || 1;
-       while (!date.getDay() || (excl && date.getDay()==1 || !excl && date.getDay()==6)) {
-               addDays(date, inc);
-       }
-       return date;
+function compareNumbers(a, b) { // for .sort()
+       return a - b;
 }
 
 
-function dayDiff(d1, d2) { // d1 - d2
-       return Math.round((cloneDate(d1, true) - cloneDate(d2, true)) / DAY_MS);
+function isInt(n) {
+       return n % 1 === 0;
 }
 
 
-function setYMD(date, y, m, d) {
-       if (y !== undefined && y != date.getFullYear()) {
-               date.setDate(1);
-               date.setMonth(0);
-               date.setFullYear(y);
-       }
-       if (m !== undefined && m != date.getMonth()) {
-               date.setDate(1);
-               date.setMonth(m);
-       }
-       if (d !== undefined) {
-               date.setDate(d);
-       }
-}
-
+// Returns a method bound to the given object context.
+// Just like one of the jQuery.proxy signatures, but without the undesired behavior of treating the same method with
+// different contexts as identical when binding/unbinding events.
+function proxy(obj, methodName) {
+       var method = obj[methodName];
 
+       return function() {
+               return method.apply(obj, arguments);
+       };
+}
 
-/* Date Parsing
------------------------------------------------------------------------------*/
 
+// Returns a function, that, as long as it continues to be invoked, will not
+// be triggered. The function will be called after it stops being called for
+// N milliseconds. If `immediate` is passed, trigger the function on the
+// leading edge, instead of the trailing.
+// https://github.com/jashkenas/underscore/blob/1.6.0/underscore.js#L714
+function debounce(func, wait, immediate) {
+       var timeout, args, context, timestamp, result;
 
-function parseDate(s, ignoreTimezone) { // ignoreTimezone defaults to true
-       if (typeof s == 'object') { // already a Date object
-               return s;
-       }
-       if (typeof s == 'number') { // a UNIX timestamp
-               return new Date(s * 1000);
-       }
-       if (typeof s == 'string') {
-               if (s.match(/^\d+$/)) { // a UNIX timestamp
-                       return new Date(parseInt(s, 10) * 1000);
+       var later = function() {
+               var last = +new Date() - timestamp;
+               if (last < wait) {
+                       timeout = setTimeout(later, wait - last);
                }
-               if (ignoreTimezone === undefined) {
-                       ignoreTimezone = true;
+               else {
+                       timeout = null;
+                       if (!immediate) {
+                               result = func.apply(context, args);
+                               context = args = null;
+                       }
                }
-               return parseISO8601(s, ignoreTimezone) || (s ? new Date(s) : null);
-       }
-       // TODO: never return invalid dates (like from new Date(<string>)), return null instead
-       return null;
-}
-
+       };
 
-function parseISO8601(s, ignoreTimezone) { // ignoreTimezone defaults to false
-       // derived from http://delete.me.uk/2005/03/iso8601.html
-       // TODO: for a know glitch/feature, read tests/issue_206_parseDate_dst.html
-       var m = s.match(/^([0-9]{4})(-([0-9]{2})(-([0-9]{2})([T ]([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?(Z|(([-+])([0-9]{2}):([0-9]{2})))?)?)?)?$/);
-       if (!m) {
-               return null;
-       }
-       var date = new Date(m[1], 0, 1);
-       if (ignoreTimezone || !m[14]) {
-               var check = new Date(m[1], 0, 1, 9, 0);
-               if (m[3]) {
-                       date.setMonth(m[3] - 1);
-                       check.setMonth(m[3] - 1);
-               }
-               if (m[5]) {
-                       date.setDate(m[5]);
-                       check.setDate(m[5]);
-               }
-               fixDate(date, check);
-               if (m[7]) {
-                       date.setHours(m[7]);
-               }
-               if (m[8]) {
-                       date.setMinutes(m[8]);
+       return function() {
+               context = this;
+               args = arguments;
+               timestamp = +new Date();
+               var callNow = immediate && !timeout;
+               if (!timeout) {
+                       timeout = setTimeout(later, wait);
                }
-               if (m[10]) {
-                       date.setSeconds(m[10]);
+               if (callNow) {
+                       result = func.apply(context, args);
+                       context = args = null;
                }
-               if (m[12]) {
-                       date.setMilliseconds(Number("0." + m[12]) * 1000);
-               }
-               fixDate(date, check);
-       }else{
-               date.setUTCFullYear(
-                       m[1],
-                       m[3] ? m[3] - 1 : 0,
-                       m[5] || 1
-               );
-               date.setUTCHours(
-                       m[7] || 0,
-                       m[8] || 0,
-                       m[10] || 0,
-                       m[12] ? Number("0." + m[12]) * 1000 : 0
-               );
-               var offset = Number(m[16]) * 60 + Number(m[17]);
-               offset *= m[15] == '-' ? 1 : -1;
-               date = new Date(+date + (offset * 60 * 1000));
-       }
-       return date;
+               return result;
+       };
 }
 
+;;
 
-function parseTime(s) { // returns minutes since start of day
-       if (typeof s == 'number') { // an hour
-               return s * 60;
-       }
-       if (typeof s == 'object') { // a Date object
-               return s.getHours() * 60 + s.getMinutes();
-       }
-       var m = s.match(/(\d+)(?::(\d+))?\s*(\w+)?/);
-       if (m) {
-               var h = parseInt(m[1], 10);
-               if (m[3]) {
-                       h %= 12;
-                       if (m[3].toLowerCase().charAt(0) == 'p') {
-                               h += 12;
-                       }
-               }
-               return h * 60 + (m[2] ? parseInt(m[2], 10) : 0);
-       }
-}
+/*
+GENERAL NOTE on moments throughout the *entire rest* of the codebase:
+All moments are assumed to be ambiguously-zoned unless otherwise noted,
+with the NOTABLE EXCEOPTION of start/end dates that live on *Event Objects*.
+Ambiguously-TIMED moments are assumed to be ambiguously-zoned by nature.
+*/
 
+var ambigDateOfMonthRegex = /^\s*\d{4}-\d\d$/;
+var ambigTimeOrZoneRegex =
+       /^\s*\d{4}-(?:(\d\d-\d\d)|(W\d\d$)|(W\d\d-\d)|(\d\d\d))((T| )(\d\d(:\d\d(:\d\d(\.\d+)?)?)?)?)?$/;
+var newMomentProto = moment.fn; // where we will attach our new methods
+var oldMomentProto = $.extend({}, newMomentProto); // copy of original moment methods
 
+// tell momentjs to transfer these properties upon clone
+var momentProperties = moment.momentProperties;
+momentProperties.push('_fullCalendar');
+momentProperties.push('_ambigTime');
+momentProperties.push('_ambigZone');
 
-/* Date Formatting
------------------------------------------------------------------------------*/
-// TODO: use same function formatDate(date, [date2], format, [options])
 
+// Creating
+// -------------------------------------------------------------------------------------------------
 
-function formatDate(date, format, options) {
-       return formatDates(date, null, format, options);
-}
+// Creates a new moment, similar to the vanilla moment(...) constructor, but with
+// extra features (ambiguous time, enhanced formatting). When given an existing moment,
+// it will function as a clone (and retain the zone of the moment). Anything else will
+// result in a moment in the local zone.
+FC.moment = function() {
+       return makeMoment(arguments);
+};
 
+// Sames as FC.moment, but forces the resulting moment to be in the UTC timezone.
+FC.moment.utc = function() {
+       var mom = makeMoment(arguments, true);
 
-function formatDates(date1, date2, format, options) {
-       options = options || defaults;
-       var date = date1,
-               otherDate = date2,
-               i, len = format.length, c,
-               i2, formatter,
-               res = '';
-       for (i=0; i<len; i++) {
-               c = format.charAt(i);
-               if (c == "'") {
-                       for (i2=i+1; i2<len; i2++) {
-                               if (format.charAt(i2) == "'") {
-                                       if (date) {
-                                               if (i2 == i+1) {
-                                                       res += "'";
-                                               }else{
-                                                       res += format.substring(i+1, i2);
-                                               }
-                                               i = i2;
-                                       }
-                                       break;
-                               }
-                       }
-               }
-               else if (c == '(') {
-                       for (i2=i+1; i2<len; i2++) {
-                               if (format.charAt(i2) == ')') {
-                                       var subres = formatDate(date, format.substring(i+1, i2), options);
-                                       if (parseInt(subres.replace(/\D/, ''), 10)) {
-                                               res += subres;
-                                       }
-                                       i = i2;
-                                       break;
-                               }
+       // Force it into UTC because makeMoment doesn't guarantee it
+       // (if given a pre-existing moment for example)
+       if (mom.hasTime()) { // don't give ambiguously-timed moments a UTC zone
+               mom.utc();
+       }
+
+       return mom;
+};
+
+// Same as FC.moment, but when given an ISO8601 string, the timezone offset is preserved.
+// ISO8601 strings with no timezone offset will become ambiguously zoned.
+FC.moment.parseZone = function() {
+       return makeMoment(arguments, true, true);
+};
+
+// Builds an enhanced moment from args. When given an existing moment, it clones. When given a
+// native Date, or called with no arguments (the current time), the resulting moment will be local.
+// Anything else needs to be "parsed" (a string or an array), and will be affected by:
+//    parseAsUTC - if there is no zone information, should we parse the input in UTC?
+//    parseZone - if there is zone information, should we force the zone of the moment?
+function makeMoment(args, parseAsUTC, parseZone) {
+       var input = args[0];
+       var isSingleString = args.length == 1 && typeof input === 'string';
+       var isAmbigTime;
+       var isAmbigZone;
+       var ambigMatch;
+       var mom;
+
+       if (moment.isMoment(input) || isNativeDate(input) || input === undefined) {
+               mom = moment.apply(null, args);
+       }
+       else { // "parsing" is required
+               isAmbigTime = false;
+               isAmbigZone = false;
+
+               if (isSingleString) {
+                       if (ambigDateOfMonthRegex.test(input)) {
+                               // accept strings like '2014-05', but convert to the first of the month
+                               input += '-01';
+                               args = [ input ]; // for when we pass it on to moment's constructor
+                               isAmbigTime = true;
+                               isAmbigZone = true;
                        }
-               }
-               else if (c == '[') {
-                       for (i2=i+1; i2<len; i2++) {
-                               if (format.charAt(i2) == ']') {
-                                       var subformat = format.substring(i+1, i2);
-                                       var subres = formatDate(date, subformat, options);
-                                       if (subres != formatDate(otherDate, subformat, options)) {
-                                               res += subres;
-                                       }
-                                       i = i2;
-                                       break;
-                               }
+                       else if ((ambigMatch = ambigTimeOrZoneRegex.exec(input))) {
+                               isAmbigTime = !ambigMatch[5]; // no time part?
+                               isAmbigZone = true;
                        }
                }
-               else if (c == '{') {
-                       date = date2;
-                       otherDate = date1;
+               else if ($.isArray(input)) {
+                       // arrays have no timezone information, so assume ambiguous zone
+                       isAmbigZone = true;
                }
-               else if (c == '}') {
-                       date = date1;
-                       otherDate = date2;
+               // otherwise, probably a string with a format
+
+               if (parseAsUTC || isAmbigTime) {
+                       mom = moment.utc.apply(moment, args);
                }
                else {
-                       for (i2=len; i2>i; i2--) {
-                               if (formatter = dateFormatters[format.substring(i, i2)]) {
-                                       if (date) {
-                                               res += formatter(date, options);
-                                       }
-                                       i = i2 - 1;
-                                       break;
-                               }
+                       mom = moment.apply(null, args);
+               }
+
+               if (isAmbigTime) {
+                       mom._ambigTime = true;
+                       mom._ambigZone = true; // ambiguous time always means ambiguous zone
+               }
+               else if (parseZone) { // let's record the inputted zone somehow
+                       if (isAmbigZone) {
+                               mom._ambigZone = true;
                        }
-                       if (i2 == i) {
-                               if (date) {
-                                       res += c;
-                               }
+                       else if (isSingleString) {
+                               mom.utcOffset(input); // if not a valid zone, will assign UTC
                        }
                }
        }
-       return res;
-};
-
-
-var dateFormatters = {
-       s       : function(d)   { return d.getSeconds() },
-       ss      : function(d)   { return zeroPad(d.getSeconds()) },
-       m       : function(d)   { return d.getMinutes() },
-       mm      : function(d)   { return zeroPad(d.getMinutes()) },
-       h       : function(d)   { return d.getHours() % 12 || 12 },
-       hh      : function(d)   { return zeroPad(d.getHours() % 12 || 12) },
-       H       : function(d)   { return d.getHours() },
-       HH      : function(d)   { return zeroPad(d.getHours()) },
-       d       : function(d)   { return d.getDate() },
-       dd      : function(d)   { return zeroPad(d.getDate()) },
-       ddd     : function(d,o) { return o.dayNamesShort[d.getDay()] },
-       dddd: function(d,o)     { return o.dayNames[d.getDay()] },
-       M       : function(d)   { return d.getMonth() + 1 },
-       MM      : function(d)   { return zeroPad(d.getMonth() + 1) },
-       MMM     : function(d,o) { return o.monthNamesShort[d.getMonth()] },
-       MMMM: function(d,o)     { return o.monthNames[d.getMonth()] },
-       yy      : function(d)   { return (d.getFullYear()+'').substring(2) },
-       yyyy: function(d)       { return d.getFullYear() },
-       t       : function(d)   { return d.getHours() < 12 ? 'a' : 'p' },
-       tt      : function(d)   { return d.getHours() < 12 ? 'am' : 'pm' },
-       T       : function(d)   { return d.getHours() < 12 ? 'A' : 'P' },
-       TT      : function(d)   { return d.getHours() < 12 ? 'AM' : 'PM' },
-       u       : function(d)   { return formatDate(d, "yyyy-MM-dd'T'HH:mm:ss'Z'") },
-       S       : function(d)   {
-               var date = d.getDate();
-               if (date > 10 && date < 20) {
-                       return 'th';
-               }
-               return ['st', 'nd', 'rd'][date%10-1] || 'th';
-       }
-};
 
+       mom._fullCalendar = true; // flag for extended functionality
 
+       return mom;
+}
 
-fc.applyAll = applyAll;
 
+// Week Number
+// -------------------------------------------------------------------------------------------------
 
-/* Event Date Math
------------------------------------------------------------------------------*/
 
+// Returns the week number, considering the locale's custom week number calcuation
+// `weeks` is an alias for `week`
+newMomentProto.week = newMomentProto.weeks = function(input) {
+       var weekCalc = this._locale._fullCalendar_weekCalc;
 
-function exclEndDay(event) {
-       if (event.end) {
-               return _exclEndDay(event.end, event.allDay);
-       }else{
-               return addDays(cloneDate(event.start), 1);
+       if (input == null && typeof weekCalc === 'function') { // custom function only works for getter
+               return weekCalc(this);
+       }
+       else if (weekCalc === 'ISO') {
+               return oldMomentProto.isoWeek.apply(this, arguments); // ISO getter/setter
        }
-}
 
+       return oldMomentProto.week.apply(this, arguments); // local getter/setter
+};
 
-function _exclEndDay(end, allDay) {
-       end = cloneDate(end);
-       return allDay || end.getHours() || end.getMinutes() ? addDays(end, 1) : clearTime(end);
-}
 
+// Time-of-day
+// -------------------------------------------------------------------------------------------------
 
-function segCmp(a, b) {
-       return (b.msLength - a.msLength) * 100 + (a.event.start - b.event.start);
-}
+// GETTER
+// Returns a Duration with the hours/minutes/seconds/ms values of the moment.
+// If the moment has an ambiguous time, a duration of 00:00 will be returned.
+//
+// SETTER
+// You can supply a Duration, a Moment, or a Duration-like argument.
+// When setting the time, and the moment has an ambiguous time, it then becomes unambiguous.
+newMomentProto.time = function(time) {
 
+       // Fallback to the original method (if there is one) if this moment wasn't created via FullCalendar.
+       // `time` is a generic enough method name where this precaution is necessary to avoid collisions w/ other plugins.
+       if (!this._fullCalendar) {
+               return oldMomentProto.time.apply(this, arguments);
+       }
 
-function segsCollide(seg1, seg2) {
-       return seg1.end > seg2.start && seg1.start < seg2.end;
-}
+       if (time == null) { // getter
+               return moment.duration({
+                       hours: this.hours(),
+                       minutes: this.minutes(),
+                       seconds: this.seconds(),
+                       milliseconds: this.milliseconds()
+               });
+       }
+       else { // setter
 
+               this._ambigTime = false; // mark that the moment now has a time
 
+               if (!moment.isDuration(time) && !moment.isMoment(time)) {
+                       time = moment.duration(time);
+               }
 
-/* Event Sorting
------------------------------------------------------------------------------*/
+               // The day value should cause overflow (so 24 hours becomes 00:00:00 of next day).
+               // Only for Duration times, not Moment times.
+               var dayHours = 0;
+               if (moment.isDuration(time)) {
+                       dayHours = Math.floor(time.asDays()) * 24;
+               }
 
+               // We need to set the individual fields.
+               // Can't use startOf('day') then add duration. In case of DST at start of day.
+               return this.hours(dayHours + time.hours())
+                       .minutes(time.minutes())
+                       .seconds(time.seconds())
+                       .milliseconds(time.milliseconds());
+       }
+};
 
-// event rendering utilities
-function sliceSegs(events, visEventEnds, start, end) {
-       var segs = [],
-               i, len=events.length, event,
-               eventStart, eventEnd,
-               segStart, segEnd,
-               isStart, isEnd;
-       for (i=0; i<len; i++) {
-               event = events[i];
-               eventStart = event.start;
-               eventEnd = visEventEnds[i];
-               if (eventEnd > start && eventStart < end) {
-                       if (eventStart < start) {
-                               segStart = cloneDate(start);
-                               isStart = false;
-                       }else{
-                               segStart = eventStart;
-                               isStart = true;
-                       }
-                       if (eventEnd > end) {
-                               segEnd = cloneDate(end);
-                               isEnd = false;
-                       }else{
-                               segEnd = eventEnd;
-                               isEnd = true;
-                       }
-                       segs.push({
-                               event: event,
-                               start: segStart,
-                               end: segEnd,
-                               isStart: isStart,
-                               isEnd: isEnd,
-                               msLength: segEnd - segStart
-                       });
-               }
-       } 
-       return segs.sort(segCmp);
-}
+// Converts the moment to UTC, stripping out its time-of-day and timezone offset,
+// but preserving its YMD. A moment with a stripped time will display no time
+// nor timezone offset when .format() is called.
+newMomentProto.stripTime = function() {
 
+       if (!this._ambigTime) {
 
-// event rendering calculation utilities
-function stackSegs(segs) {
-       var levels = [],
-               i, len = segs.length, seg,
-               j, collide, k;
-       for (i=0; i<len; i++) {
-               seg = segs[i];
-               j = 0; // the level index where seg should belong
-               while (true) {
-                       collide = false;
-                       if (levels[j]) {
-                               for (k=0; k<levels[j].length; k++) {
-                                       if (segsCollide(levels[j][k], seg)) {
-                                               collide = true;
-                                               break;
-                                       }
-                               }
-                       }
-                       if (collide) {
-                               j++;
-                       }else{
-                               break;
-                       }
-               }
-               if (levels[j]) {
-                       levels[j].push(seg);
-               }else{
-                       levels[j] = [seg];
-               }
-       }
-       return levels;
-}
+               this.utc(true); // keepLocalTime=true (for keeping *date* value)
 
+               // set time to zero
+               this.set({
+                       hours: 0,
+                       minutes: 0,
+                       seconds: 0,
+                       ms: 0
+               });
 
+               // Mark the time as ambiguous. This needs to happen after the .utc() call, which might call .utcOffset(),
+               // which clears all ambig flags.
+               this._ambigTime = true;
+               this._ambigZone = true; // if ambiguous time, also ambiguous timezone offset
+       }
 
-/* Event Element Binding
------------------------------------------------------------------------------*/
+       return this; // for chaining
+};
 
+// Returns if the moment has a non-ambiguous time (boolean)
+newMomentProto.hasTime = function() {
+       return !this._ambigTime;
+};
 
-function lazySegBind(container, segs, bindHandlers) {
-       container.unbind('mouseover').mouseover(function(ev) {
-               var parent=ev.target, e,
-                       i, seg;
-               while (parent != this) {
-                       e = parent;
-                       parent = parent.parentNode;
-               }
-               if ((i = e._fci) !== undefined) {
-                       e._fci = undefined;
-                       seg = segs[i];
-                       bindHandlers(seg.event, seg.element, seg);
-                       $(ev.target).trigger(ev);
-               }
-               ev.stopPropagation();
-       });
-}
 
+// Timezone
+// -------------------------------------------------------------------------------------------------
 
+// Converts the moment to UTC, stripping out its timezone offset, but preserving its
+// YMD and time-of-day. A moment with a stripped timezone offset will display no
+// timezone offset when .format() is called.
+newMomentProto.stripZone = function() {
+       var wasAmbigTime;
 
-/* Element Dimensions
------------------------------------------------------------------------------*/
+       if (!this._ambigZone) {
 
+               wasAmbigTime = this._ambigTime;
 
-function setOuterWidth(element, width, includeMargins) {
-       for (var i=0, e; i<element.length; i++) {
-               e = $(element[i]);
-               e.width(Math.max(0, width - hsides(e, includeMargins)));
-       }
-}
+               this.utc(true); // keepLocalTime=true (for keeping date and time values)
 
+               // the above call to .utc()/.utcOffset() unfortunately might clear the ambig flags, so restore
+               this._ambigTime = wasAmbigTime || false;
 
-function setOuterHeight(element, height, includeMargins) {
-       for (var i=0, e; i<element.length; i++) {
-               e = $(element[i]);
-               e.height(Math.max(0, height - vsides(e, includeMargins)));
+               // Mark the zone as ambiguous. This needs to happen after the .utc() call, which might call .utcOffset(),
+               // which clears the ambig flags.
+               this._ambigZone = true;
        }
-}
 
+       return this; // for chaining
+};
 
-// TODO: curCSS has been deprecated (jQuery 1.4.3 - 10/16/2010)
+// Returns of the moment has a non-ambiguous timezone offset (boolean)
+newMomentProto.hasZone = function() {
+       return !this._ambigZone;
+};
 
 
-function hsides(element, includeMargins) {
-       return hpadding(element) + hborders(element) + (includeMargins ? hmargins(element) : 0);
-}
+// implicitly marks a zone
+newMomentProto.local = function(keepLocalTime) {
 
+       // for when converting from ambiguously-zoned to local,
+       // keep the time values when converting from UTC -> local
+       oldMomentProto.local.call(this, this._ambigZone || keepLocalTime);
 
-function hpadding(element) {
-       return (parseFloat($.curCSS(element[0], 'paddingLeft', true)) || 0) +
-              (parseFloat($.curCSS(element[0], 'paddingRight', true)) || 0);
-}
+       // ensure non-ambiguous
+       // this probably already happened via local() -> utcOffset(), but don't rely on Moment's internals
+       this._ambigTime = false;
+       this._ambigZone = false;
 
+       return this; // for chaining
+};
 
-function hmargins(element) {
-       return (parseFloat($.curCSS(element[0], 'marginLeft', true)) || 0) +
-              (parseFloat($.curCSS(element[0], 'marginRight', true)) || 0);
-}
 
+// implicitly marks a zone
+newMomentProto.utc = function(keepLocalTime) {
 
-function hborders(element) {
-       return (parseFloat($.curCSS(element[0], 'borderLeftWidth', true)) || 0) +
-              (parseFloat($.curCSS(element[0], 'borderRightWidth', true)) || 0);
-}
+       oldMomentProto.utc.call(this, keepLocalTime);
 
+       // ensure non-ambiguous
+       // this probably already happened via utc() -> utcOffset(), but don't rely on Moment's internals
+       this._ambigTime = false;
+       this._ambigZone = false;
 
-function vsides(element, includeMargins) {
-       return vpadding(element) +  vborders(element) + (includeMargins ? vmargins(element) : 0);
-}
+       return this;
+};
 
 
-function vpadding(element) {
-       return (parseFloat($.curCSS(element[0], 'paddingTop', true)) || 0) +
-              (parseFloat($.curCSS(element[0], 'paddingBottom', true)) || 0);
-}
+// implicitly marks a zone (will probably get called upon .utc() and .local())
+newMomentProto.utcOffset = function(tzo) {
 
+       if (tzo != null) { // setter
+               // these assignments needs to happen before the original zone method is called.
+               // I forget why, something to do with a browser crash.
+               this._ambigTime = false;
+               this._ambigZone = false;
+       }
 
-function vmargins(element) {
-       return (parseFloat($.curCSS(element[0], 'marginTop', true)) || 0) +
-              (parseFloat($.curCSS(element[0], 'marginBottom', true)) || 0);
-}
+       return oldMomentProto.utcOffset.apply(this, arguments);
+};
 
 
-function vborders(element) {
-       return (parseFloat($.curCSS(element[0], 'borderTopWidth', true)) || 0) +
-              (parseFloat($.curCSS(element[0], 'borderBottomWidth', true)) || 0);
-}
+// Formatting
+// -------------------------------------------------------------------------------------------------
 
+newMomentProto.format = function() {
+       if (this._fullCalendar && arguments[0]) { // an enhanced moment? and a format string provided?
+               return formatDate(this, arguments[0]); // our extended formatting
+       }
+       if (this._ambigTime) {
+               return oldMomentFormat(this, 'YYYY-MM-DD');
+       }
+       if (this._ambigZone) {
+               return oldMomentFormat(this, 'YYYY-MM-DD[T]HH:mm:ss');
+       }
+       return oldMomentProto.format.apply(this, arguments);
+};
 
-function setMinHeight(element, height) {
-       height = (typeof height == 'number' ? height + 'px' : height);
-       element.each(function(i, _element) {
-               _element.style.cssText += ';min-height:' + height + ';_height:' + height;
-               // why can't we just use .css() ? i forget
-       });
-}
+newMomentProto.toISOString = function() {
+       if (this._ambigTime) {
+               return oldMomentFormat(this, 'YYYY-MM-DD');
+       }
+       if (this._ambigZone) {
+               return oldMomentFormat(this, 'YYYY-MM-DD[T]HH:mm:ss');
+       }
+       return oldMomentProto.toISOString.apply(this, arguments);
+};
 
+;;
+(function() {
 
+// exports
+FC.formatDate = formatDate;
+FC.formatRange = formatRange;
+FC.oldMomentFormat = oldMomentFormat;
+FC.queryMostGranularFormatUnit = queryMostGranularFormatUnit;
 
-/* Misc Utils
------------------------------------------------------------------------------*/
 
+// Config
+// ---------------------------------------------------------------------------------------------------------------------
 
-//TODO: arraySlice
-//TODO: isFunction, grep ?
+/*
+Inserted between chunks in the fake ("intermediate") formatting string.
+Important that it passes as whitespace (\s) because moment often identifies non-standalone months
+via a regexp with an \s.
+*/
+var PART_SEPARATOR = '\u000b'; // vertical tab
 
+/*
+Inserted as the first character of a literal-text chunk to indicate that the literal text is not actually literal text,
+but rather, a "special" token that has custom rendering (see specialTokens map).
+*/
+var SPECIAL_TOKEN_MARKER = '\u001f'; // information separator 1
 
-function noop() { }
+/*
+Inserted at the beginning and end of a span of text that must have non-zero numeric characters.
+Handling of these markers is done in a post-processing step at the very end of text rendering.
+*/
+var MAYBE_MARKER = '\u001e'; // information separator 2
+var MAYBE_REGEXP = new RegExp(MAYBE_MARKER + '([^' + MAYBE_MARKER + ']*)' + MAYBE_MARKER, 'g'); // must be global
 
+/*
+Addition formatting tokens we want recognized
+*/
+var specialTokens = {
+       t: function(date) { // "a" or "p"
+               return oldMomentFormat(date, 'a').charAt(0);
+       },
+       T: function(date) { // "A" or "P"
+               return oldMomentFormat(date, 'A').charAt(0);
+       }
+};
 
-function cmp(a, b) {
-       return a - b;
-}
+/*
+The first characters of formatting tokens for units that are 1 day or larger.
+`value` is for ranking relative size (lower means bigger).
+`unit` is a normalized unit, used for comparing moments.
+*/
+var largeTokenMap = {
+       Y: { value: 1, unit: 'year' },
+       M: { value: 2, unit: 'month' },
+       W: { value: 3, unit: 'week' }, // ISO week
+       w: { value: 3, unit: 'week' }, // local week
+       D: { value: 4, unit: 'day' }, // day of month
+       d: { value: 4, unit: 'day' } // day of week
+};
 
 
-function arrayMax(a) {
-       return Math.max.apply(Math, a);
-}
+// Single Date Formatting
+// ---------------------------------------------------------------------------------------------------------------------
 
+/*
+Formats `date` with a Moment formatting string, but allow our non-zero areas and special token
+*/
+function formatDate(date, formatStr) {
+       return renderFakeFormatString(
+               getParsedFormatString(formatStr).fakeFormatString,
+               date
+       );
+}
 
-function zeroPad(n) {
-       return (n < 10 ? '0' : '') + n;
+/*
+Call this if you want Moment's original format method to be used
+*/
+function oldMomentFormat(mom, formatStr) {
+       return oldMomentProto.format.call(mom, formatStr); // oldMomentProto defined in moment-ext.js
 }
 
 
-function smartProperty(obj, name) { // get a camel-cased/namespaced property of an object
-       if (obj[name] !== undefined) {
-               return obj[name];
-       }
-       var parts = name.split(/(?=[A-Z])/),
-               i=parts.length-1, res;
-       for (; i>=0; i--) {
-               res = obj[parts[i].toLowerCase()];
-               if (res !== undefined) {
-                       return res;
+// Date Range Formatting
+// -------------------------------------------------------------------------------------------------
+// TODO: make it work with timezone offset
+
+/*
+Using a formatting string meant for a single date, generate a range string, like
+"Sep 2 - 9 2013", that intelligently inserts a separator where the dates differ.
+If the dates are the same as far as the format string is concerned, just return a single
+rendering of one date, without any separator.
+*/
+function formatRange(date1, date2, formatStr, separator, isRTL) {
+       var localeData;
+
+       date1 = FC.moment.parseZone(date1);
+       date2 = FC.moment.parseZone(date2);
+
+       localeData = date1.localeData();
+
+       // Expand localized format strings, like "LL" -> "MMMM D YYYY".
+       // BTW, this is not important for `formatDate` because it is impossible to put custom tokens
+       // or non-zero areas in Moment's localized format strings.
+       formatStr = localeData.longDateFormat(formatStr) || formatStr;
+
+       return renderParsedFormat(
+               getParsedFormatString(formatStr),
+               date1,
+               date2,
+               separator || ' - ',
+               isRTL
+       );
+}
+
+/*
+Renders a range with an already-parsed format string.
+*/
+function renderParsedFormat(parsedFormat, date1, date2, separator, isRTL) {
+       var sameUnits = parsedFormat.sameUnits;
+       var unzonedDate1 = date1.clone().stripZone(); // for same-unit comparisons
+       var unzonedDate2 = date2.clone().stripZone(); // "
+
+       var renderedParts1 = renderFakeFormatStringParts(parsedFormat.fakeFormatString, date1);
+       var renderedParts2 = renderFakeFormatStringParts(parsedFormat.fakeFormatString, date2);
+
+       var leftI;
+       var leftStr = '';
+       var rightI;
+       var rightStr = '';
+       var middleI;
+       var middleStr1 = '';
+       var middleStr2 = '';
+       var middleStr = '';
+
+       // Start at the leftmost side of the formatting string and continue until you hit a token
+       // that is not the same between dates.
+       for (
+               leftI = 0;
+               leftI < sameUnits.length && (!sameUnits[leftI] || unzonedDate1.isSame(unzonedDate2, sameUnits[leftI]));
+               leftI++
+       ) {
+               leftStr += renderedParts1[leftI];
+       }
+
+       // Similarly, start at the rightmost side of the formatting string and move left
+       for (
+               rightI = sameUnits.length - 1;
+               rightI > leftI && (!sameUnits[rightI] || unzonedDate1.isSame(unzonedDate2, sameUnits[rightI]));
+               rightI--
+       ) {
+               // If current chunk is on the boundary of unique date-content, and is a special-case
+               // date-formatting postfix character, then don't consume it. Consider it unique date-content.
+               // TODO: make configurable
+               if (rightI - 1 === leftI && renderedParts1[rightI] === '.') {
+                       break;
+               }
+
+               rightStr = renderedParts1[rightI] + rightStr;
+       }
+
+       // The area in the middle is different for both of the dates.
+       // Collect them distinctly so we can jam them together later.
+       for (middleI = leftI; middleI <= rightI; middleI++) {
+               middleStr1 += renderedParts1[middleI];
+               middleStr2 += renderedParts2[middleI];
+       }
+
+       if (middleStr1 || middleStr2) {
+               if (isRTL) {
+                       middleStr = middleStr2 + separator + middleStr1;
+               }
+               else {
+                       middleStr = middleStr1 + separator + middleStr2;
                }
        }
-       return obj[''];
+
+       return processMaybeMarkers(
+               leftStr + middleStr + rightStr
+       );
 }
 
 
-function htmlEscape(s) {
-       return s.replace(/&/g, '&amp;')
-               .replace(/</g, '&lt;')
-               .replace(/>/g, '&gt;')
-               .replace(/'/g, '&#039;')
-               .replace(/"/g, '&quot;')
-               .replace(/\n/g, '<br />');
-}
+// Format String Parsing
+// ---------------------------------------------------------------------------------------------------------------------
+
+var parsedFormatStrCache = {};
 
+/*
+Returns a parsed format string, leveraging a cache.
+*/
+function getParsedFormatString(formatStr) {
+       return parsedFormatStrCache[formatStr] ||
+               (parsedFormatStrCache[formatStr] = parseFormatString(formatStr));
+}
 
-function cssKey(_element) {
-       return _element.id + '/' + _element.className + '/' + _element.style.cssText.replace(/(^|;)\s*(top|left|width|height)\s*:[^;]*/ig, '');
+/*
+Parses a format string into the following:
+- fakeFormatString: a momentJS formatting string, littered with special control characters that get post-processed.
+- sameUnits: for every part in fakeFormatString, if the part is a token, the value will be a unit string (like "day"),
+  that indicates how similar a range's start & end must be in order to share the same formatted text.
+  If not a token, then the value is null.
+  Always a flat array (not nested liked "chunks").
+*/
+function parseFormatString(formatStr) {
+       var chunks = chunkFormatString(formatStr);
+       
+       return {
+               fakeFormatString: buildFakeFormatString(chunks),
+               sameUnits: buildSameUnits(chunks)
+       };
 }
 
+/*
+Break the formatting string into an array of chunks.
+A 'maybe' chunk will have nested chunks.
+*/
+function chunkFormatString(formatStr) {
+       var chunks = [];
+       var match;
+
+       // TODO: more descrimination
+       // \4 is a backreference to the first character of a multi-character set.
+       var chunker = /\[([^\]]*)\]|\(([^\)]*)\)|(LTS|LT|(\w)\4*o?)|([^\w\[\(]+)/g;
+
+       while ((match = chunker.exec(formatStr))) {
+               if (match[1]) { // a literal string inside [ ... ]
+                       chunks.push.apply(chunks, // append
+                               splitStringLiteral(match[1])
+                       );
+               }
+               else if (match[2]) { // non-zero formatting inside ( ... )
+                       chunks.push({ maybe: chunkFormatString(match[2]) });
+               }
+               else if (match[3]) { // a formatting token
+                       chunks.push({ token: match[3] });
+               }
+               else if (match[5]) { // an unenclosed literal string
+                       chunks.push.apply(chunks, // append
+                               splitStringLiteral(match[5])
+                       );
+               }
+       }
 
-function disableTextSelection(element) {
-       element
-               .attr('unselectable', 'on')
-               .css('MozUserSelect', 'none')
-               .bind('selectstart.ui', function() { return false; });
+       return chunks;
 }
 
+/*
+Potentially splits a literal-text string into multiple parts. For special cases.
+*/
+function splitStringLiteral(s) {
+       if (s === '. ') {
+               return [ '.', ' ' ]; // for locales with periods bound to the end of each year/month/date
+       }
+       else {
+               return [ s ];
+       }
+}
 
 /*
-function enableTextSelection(element) {
-       element
-               .attr('unselectable', 'off')
-               .css('MozUserSelect', '')
-               .unbind('selectstart.ui');
+Given chunks parsed from a real format string, generate a fake (aka "intermediate") format string with special control
+characters that will eventually be given to moment for formatting, and then post-processed.
+*/
+function buildFakeFormatString(chunks) {
+       var parts = [];
+       var i, chunk;
+
+       for (i = 0; i < chunks.length; i++) {
+               chunk = chunks[i];
+
+               if (typeof chunk === 'string') {
+                       parts.push('[' + chunk + ']');
+               }
+               else if (chunk.token) {
+                       if (chunk.token in specialTokens) {
+                               parts.push(
+                                       SPECIAL_TOKEN_MARKER + // useful during post-processing
+                                       '[' + chunk.token + ']' // preserve as literal text
+                               );
+                       }
+                       else {
+                               parts.push(chunk.token); // unprotected text implies a format string
+                       }
+               }
+               else if (chunk.maybe) {
+                       parts.push(
+                               MAYBE_MARKER + // useful during post-processing
+                               buildFakeFormatString(chunk.maybe) +
+                               MAYBE_MARKER
+                       );
+               }
+       }
+
+       return parts.join(PART_SEPARATOR);
 }
+
+/*
+Given parsed chunks from a real formatting string, generates an array of unit strings (like "day") that indicate
+in which regard two dates must be similar in order to share range formatting text.
+The `chunks` can be nested (because of "maybe" chunks), however, the returned array will be flat.
 */
+function buildSameUnits(chunks) {
+       var units = [];
+       var i, chunk;
+       var tokenInfo;
+
+       for (i = 0; i < chunks.length; i++) {
+               chunk = chunks[i];
+
+               if (chunk.token) {
+                       tokenInfo = largeTokenMap[chunk.token.charAt(0)];
+                       units.push(tokenInfo ? tokenInfo.unit : 'second'); // default to a very strict same-second
+               }
+               else if (chunk.maybe) {
+                       units.push.apply(units, // append
+                               buildSameUnits(chunk.maybe)
+                       );
+               }
+               else {
+                       units.push(null);
+               }
+       }
+
+       return units;
+}
 
 
-function markFirstLast(e) {
-       e.children()
-               .removeClass('fc-first fc-last')
-               .filter(':first-child')
-                       .addClass('fc-first')
-               .end()
-               .filter(':last-child')
-                       .addClass('fc-last');
+// Rendering to text
+// ---------------------------------------------------------------------------------------------------------------------
+
+/*
+Formats a date with a fake format string, post-processes the control characters, then returns.
+*/
+function renderFakeFormatString(fakeFormatString, date) {
+       return processMaybeMarkers(
+               renderFakeFormatStringParts(fakeFormatString, date).join('')
+       );
 }
 
+/*
+Formats a date into parts that will have been post-processed, EXCEPT for the "maybe" markers.
+*/
+function renderFakeFormatStringParts(fakeFormatString, date) {
+       var parts = [];
+       var fakeRender = oldMomentFormat(date, fakeFormatString);
+       var fakeParts = fakeRender.split(PART_SEPARATOR);
+       var i, fakePart;
+
+       for (i = 0; i < fakeParts.length; i++) {
+               fakePart = fakeParts[i];
+
+               if (fakePart.charAt(0) === SPECIAL_TOKEN_MARKER) {
+                       parts.push(
+                               // the literal string IS the token's name.
+                               // call special token's registered function.
+                               specialTokens[fakePart.substring(1)](date)
+                       );
+               }
+               else {
+                       parts.push(fakePart);
+               }
+       }
+
+       return parts;
+}
 
-function setDayID(cell, date) {
-       cell.each(function(i, _cell) {
-               _cell.className = _cell.className.replace(/^fc-\w*/, 'fc-' + dayIDs[date.getDay()]);
-               // TODO: make a way that doesn't rely on order of classes
+/*
+Accepts an almost-finally-formatted string and processes the "maybe" control characters, returning a new string.
+*/
+function processMaybeMarkers(s) {
+       return s.replace(MAYBE_REGEXP, function(m0, m1) { // regex assumed to have 'g' flag
+               if (m1.match(/[1-9]/)) { // any non-zero numeric characters?
+                       return m1;
+               }
+               else {
+                       return '';
+               }
        });
 }
 
 
-function getSkinCss(event, opt) {
-       var source = event.source || {};
-       var eventColor = event.color;
-       var sourceColor = source.color;
-       var optionColor = opt('eventColor');
-       var backgroundColor =
-               event.backgroundColor ||
-               eventColor ||
-               source.backgroundColor ||
-               sourceColor ||
-               opt('eventBackgroundColor') ||
-               optionColor;
-       var borderColor =
-               event.borderColor ||
-               eventColor ||
-               source.borderColor ||
-               sourceColor ||
-               opt('eventBorderColor') ||
-               optionColor;
-       var textColor =
-               event.textColor ||
-               source.textColor ||
-               opt('eventTextColor');
-       var statements = [];
-       if (backgroundColor) {
-               statements.push('background-color:' + backgroundColor);
+// Misc Utils
+// -------------------------------------------------------------------------------------------------
+
+/*
+Returns a unit string, either 'year', 'month', 'day', or null for the most granular formatting token in the string.
+*/
+function queryMostGranularFormatUnit(formatStr) {
+       var chunks = chunkFormatString(formatStr);
+       var i, chunk;
+       var candidate;
+       var best;
+
+       for (i = 0; i < chunks.length; i++) {
+               chunk = chunks[i];
+
+               if (chunk.token) {
+                       candidate = largeTokenMap[chunk.token.charAt(0)];
+                       if (candidate) {
+                               if (!best || candidate.value > best.value) {
+                                       best = candidate;
+                               }
+                       }
+               }
        }
-       if (borderColor) {
-               statements.push('border-color:' + borderColor);
+
+       if (best) {
+               return best.unit;
        }
-       if (textColor) {
-               statements.push('color:' + textColor);
+
+       return null;
+};
+
+})();
+
+// quick local references
+var formatDate = FC.formatDate;
+var formatRange = FC.formatRange;
+var oldMomentFormat = FC.oldMomentFormat;
+
+;;
+
+FC.Class = Class; // export
+
+// Class that all other classes will inherit from
+function Class() { }
+
+
+// Called on a class to create a subclass.
+// Last argument contains instance methods. Any argument before the last are considered mixins.
+Class.extend = function() {
+       var len = arguments.length;
+       var i;
+       var members;
+
+       for (i = 0; i < len; i++) {
+               members = arguments[i];
+               if (i < len - 1) { // not the last argument?
+                       mixIntoClass(this, members);
+               }
        }
-       return statements.join(';');
-}
 
+       return extendClass(this, members || {}); // members will be undefined if no arguments
+};
 
-function applyAll(functions, thisObj, args) {
-       if ($.isFunction(functions)) {
-               functions = [ functions ];
+
+// Adds new member variables/methods to the class's prototype.
+// Can be called with another class, or a plain object hash containing new members.
+Class.mixin = function(members) {
+       mixIntoClass(this, members);
+};
+
+
+function extendClass(superClass, members) {
+       var subClass;
+
+       // ensure a constructor for the subclass, forwarding all arguments to the super-constructor if it doesn't exist
+       if (hasOwnProp(members, 'constructor')) {
+               subClass = members.constructor;
        }
-       if (functions) {
-               var i;
-               var ret;
-               for (i=0; i<functions.length; i++) {
-                       ret = functions[i].apply(thisObj, args) || ret;
-               }
-               return ret;
+       if (typeof subClass !== 'function') {
+               subClass = members.constructor = function() {
+                       superClass.apply(this, arguments);
+               };
        }
+
+       // build the base prototype for the subclass, which is an new object chained to the superclass's prototype
+       subClass.prototype = createObject(superClass.prototype);
+
+       // copy each member variable/method onto the the subclass's prototype
+       copyOwnProps(members, subClass.prototype);
+
+       // copy over all class variables/methods to the subclass, such as `extend` and `mixin`
+       copyOwnProps(superClass, subClass);
+
+       return subClass;
 }
 
 
-function firstDefined() {
-       for (var i=0; i<arguments.length; i++) {
-               if (arguments[i] !== undefined) {
-                       return arguments[i];
-               }
-       }
+function mixIntoClass(theClass, members) {
+       copyOwnProps(members, theClass.prototype);
 }
+;;
 
+/*
+Wrap jQuery's Deferred Promise object to be slightly more Promise/A+ compliant.
+With the added non-standard feature of synchronously executing handlers on resolved promises,
+which doesn't always happen otherwise (esp with nested .then handlers!?),
+so, this makes things a lot easier, esp because jQuery 3 changed the synchronicity for Deferred objects.
 
+TODO: write tests and more comments
+*/
 
-fcViews.month = MonthView;
+function Promise(executor) {
+       var deferred = $.Deferred();
+       var promise = deferred.promise();
 
-function MonthView(element, calendar) {
-       var t = this;
-       
-       
-       // exports
-       t.render = render;
-       
-       
-       // imports
-       BasicView.call(t, element, calendar, 'month');
-       var opt = t.opt;
-       var renderBasic = t.renderBasic;
-       var formatDate = calendar.formatDate;
-       
-       
-       
-       function render(date, delta) {
-               if (delta) {
-                       addMonths(date, delta);
-                       date.setDate(1);
-               }
-               var start = cloneDate(date, true);
-               start.setDate(1);
-               var end = addMonths(cloneDate(start), 1);
-               var visStart = cloneDate(start);
-               var visEnd = cloneDate(end);
-               var firstDay = opt('firstDay');
-               var nwe = opt('weekends') ? 0 : 1;
-               if (nwe) {
-                       skipWeekend(visStart);
-                       skipWeekend(visEnd, -1, true);
-               }
-               addDays(visStart, -((visStart.getDay() - Math.max(firstDay, nwe) + 7) % 7));
-               addDays(visEnd, (7 - visEnd.getDay() + Math.max(firstDay, nwe)) % 7);
-               var rowCnt = Math.round((visEnd - visStart) / (DAY_MS * 7));
-               if (opt('weekMode') == 'fixed') {
-                       addDays(visEnd, (6 - rowCnt) * 7);
-                       rowCnt = 6;
-               }
-               t.title = formatDate(start, opt('titleFormat'));
-               t.start = start;
-               t.end = end;
-               t.visStart = visStart;
-               t.visEnd = visEnd;
-               renderBasic(6, rowCnt, nwe ? 5 : 7, true);
+       if (typeof executor === 'function') {
+               executor(
+                       function(value) { // resolve
+                               if (Promise.immediate) {
+                                       promise._value = value;
+                               }
+                               deferred.resolve(value);
+                       },
+                       function() { // reject
+                               deferred.reject();
+                       }
+               );
        }
        
-       
-}
+       if (Promise.immediate) {
+               var origThen = promise.then;
 
-fcViews.basicWeek = BasicWeekView;
+               promise.then = function(onFulfilled, onRejected) {
+                       var state = promise.state();
+                       
+                       if (state === 'resolved') {
+                               if (typeof onFulfilled === 'function') {
+                                       return Promise.resolve(onFulfilled(promise._value));
+                               }
+                       }
+                       else if (state === 'rejected') {
+                               if (typeof onRejected === 'function') {
+                                       onRejected();
+                                       return promise; // already rejected
+                               }
+                       }
 
-function BasicWeekView(element, calendar) {
-       var t = this;
-       
-       
-       // exports
-       t.render = render;
-       
-       
-       // imports
-       BasicView.call(t, element, calendar, 'basicWeek');
-       var opt = t.opt;
-       var renderBasic = t.renderBasic;
-       var formatDates = calendar.formatDates;
-       
-       
-       
-       function render(date, delta) {
-               if (delta) {
-                       addDays(date, delta * 7);
-               }
-               var start = addDays(cloneDate(date), -((date.getDay() - opt('firstDay') + 7) % 7));
-               var end = addDays(cloneDate(start), 7);
-               var visStart = cloneDate(start);
-               var visEnd = cloneDate(end);
-               var weekends = opt('weekends');
-               if (!weekends) {
-                       skipWeekend(visStart);
-                       skipWeekend(visEnd, -1, true);
-               }
-               t.title = formatDates(
-                       visStart,
-                       addDays(cloneDate(visEnd), -1),
-                       opt('titleFormat')
-               );
-               t.start = start;
-               t.end = end;
-               t.visStart = visStart;
-               t.visEnd = visEnd;
-               renderBasic(1, 1, weekends ? 7 : 5, false);
+                       return origThen.call(promise, onFulfilled, onRejected);
+               };
        }
-       
-       
+
+       return promise; // instanceof Promise will break :( TODO: make Promise a real class
 }
 
-fcViews.basicDay = BasicDayView;
+FC.Promise = Promise;
 
-//TODO: when calendar's date starts out on a weekend, shouldn't happen
+Promise.immediate = true;
 
 
-function BasicDayView(element, calendar) {
-       var t = this;
-       
-       
-       // exports
-       t.render = render;
-       
-       
-       // imports
-       BasicView.call(t, element, calendar, 'basicDay');
-       var opt = t.opt;
-       var renderBasic = t.renderBasic;
-       var formatDate = calendar.formatDate;
-       
-       
-       
-       function render(date, delta) {
-               if (delta) {
-                       addDays(date, delta);
-                       if (!opt('weekends')) {
-                               skipWeekend(date, delta < 0 ? -1 : 1);
-                       }
-               }
-               t.title = formatDate(date, opt('titleFormat'));
-               t.start = t.visStart = cloneDate(date, true);
-               t.end = t.visEnd = addDays(cloneDate(t.start), 1);
-               renderBasic(1, 1, 1, false);
+Promise.resolve = function(value) {
+       if (value && typeof value.resolve === 'function') {
+               return value.promise();
        }
-       
-       
-}
+       if (value && typeof value.then === 'function') {
+               return value;
+       }
+       else {
+               var deferred = $.Deferred().resolve(value);
+               var promise = deferred.promise();
 
-setDefaults({
-       weekMode: 'fixed'
-});
+               if (Promise.immediate) {
+                       var origThen = promise.then;
 
+                       promise._value = value;
 
-function BasicView(element, calendar, viewName) {
-       var t = this;
-       
-       
-       // exports
-       t.renderBasic = renderBasic;
-       t.setHeight = setHeight;
-       t.setWidth = setWidth;
-       t.renderDayOverlay = renderDayOverlay;
-       t.defaultSelectionEnd = defaultSelectionEnd;
-       t.renderSelection = renderSelection;
-       t.clearSelection = clearSelection;
-       t.reportDayClick = reportDayClick; // for selection (kinda hacky)
-       t.dragStart = dragStart;
-       t.dragStop = dragStop;
-       t.defaultEventEnd = defaultEventEnd;
-       t.getHoverListener = function() { return hoverListener };
-       t.colContentLeft = colContentLeft;
-       t.colContentRight = colContentRight;
-       t.dayOfWeekCol = dayOfWeekCol;
-       t.dateCell = dateCell;
-       t.cellDate = cellDate;
-       t.cellIsAllDay = function() { return true };
-       t.allDayRow = allDayRow;
-       t.allDayBounds = allDayBounds;
-       t.getRowCnt = function() { return rowCnt };
-       t.getColCnt = function() { return colCnt };
-       t.getColWidth = function() { return colWidth };
-       t.getDaySegmentContainer = function() { return daySegmentContainer };
-       
-       
-       // imports
-       View.call(t, element, calendar, viewName);
-       OverlayManager.call(t);
-       SelectionManager.call(t);
-       BasicEventRenderer.call(t);
-       var opt = t.opt;
-       var trigger = t.trigger;
-       var clearEvents = t.clearEvents;
-       var renderOverlay = t.renderOverlay;
-       var clearOverlays = t.clearOverlays;
-       var daySelectionMousedown = t.daySelectionMousedown;
-       var formatDate = calendar.formatDate;
-       
-       
-       // locals
-       
-       var head;
-       var headCells;
-       var body;
-       var bodyRows;
-       var bodyCells;
-       var bodyFirstCells;
-       var bodyCellTopInners;
-       var daySegmentContainer;
-       
-       var viewWidth;
-       var viewHeight;
-       var colWidth;
-       
-       var rowCnt, colCnt;
-       var coordinateGrid;
-       var hoverListener;
-       var colContentPositions;
-       
-       var rtl, dis, dit;
-       var firstDay;
-       var nwe;
-       var tm;
-       var colFormat;
-       
-       
-       
-       /* Rendering
-       ------------------------------------------------------------*/
-       
-       
-       disableTextSelection(element.addClass('fc-grid'));
-       
-       
-       function renderBasic(maxr, r, c, showNumbers) {
-               rowCnt = r;
-               colCnt = c;
-               updateOptions();
-               var firstTime = !body;
-               if (firstTime) {
-                       buildSkeleton(maxr, showNumbers);
-               }else{
-                       clearEvents();
+                       promise.then = function(onFulfilled, onRejected) {
+                               if (typeof onFulfilled === 'function') {
+                                       return Promise.resolve(onFulfilled(value));
+                               }
+                               return origThen.call(promise, onFulfilled, onRejected);
+                       };
                }
-               updateCells(firstTime);
+
+               return promise;
        }
-       
-       
-       
-       function updateOptions() {
-               rtl = opt('isRTL');
-               if (rtl) {
-                       dis = -1;
-                       dit = colCnt - 1;
-               }else{
-                       dis = 1;
-                       dit = 0;
+};
+
+
+Promise.reject = function() {
+       return $.Deferred().reject().promise();
+};
+
+
+Promise.all = function(inputs) {
+       var hasAllValues = false;
+       var values;
+       var i, input;
+
+       if (Promise.immediate) {
+               hasAllValues = true;
+               values = [];
+
+               for (i = 0; i < inputs.length; i++) {
+                       input = inputs[i];
+
+                       if (input && typeof input.state === 'function' && input.state() === 'resolved' && ('_value' in input)) {
+                               values.push(input._value);
+                       }
+                       else if (input && typeof input.then === 'function') {
+                               hasAllValues = false;
+                               break;
+                       }
+                       else {
+                               values.push(input);
+                       }
                }
-               firstDay = opt('firstDay');
-               nwe = opt('weekends') ? 0 : 1;
-               tm = opt('theme') ? 'ui' : 'fc';
-               colFormat = opt('columnFormat');
        }
-       
-       
-       
-       function buildSkeleton(maxRowCnt, showNumbers) {
-               var s;
-               var headerClass = tm + "-widget-header";
-               var contentClass = tm + "-widget-content";
-               var i, j;
-               var table;
-               
-               s =
-                       "<table class='fc-border-separate' style='width:100%' cellspacing='0'>" +
-                       "<thead>" +
-                       "<tr>";
-               for (i=0; i<colCnt; i++) {
-                       s +=
-                               "<th class='fc- " + headerClass + "'/>"; // need fc- for setDayID
-               }
-               s +=
-                       "</tr>" +
-                       "</thead>" +
-                       "<tbody>";
-               for (i=0; i<maxRowCnt; i++) {
-                       s +=
-                               "<tr class='fc-week" + i + "'>";
-                       for (j=0; j<colCnt; j++) {
-                               s +=
-                                       "<td class='fc- " + contentClass + " fc-day" + (i*colCnt+j) + "'>" + // need fc- for setDayID
-                                       "<div>" +
-                                       (showNumbers ?
-                                               "<div class='fc-day-number'/>" :
-                                               ''
-                                               ) +
-                                       "<div class='fc-day-content'>" +
-                                       "<div style='position:relative'>&nbsp;</div>" +
-                                       "</div>" +
-                                       "</div>" +
-                                       "</td>";
-                       }
-                       s +=
-                               "</tr>";
-               }
-               s +=
-                       "</tbody>" +
-                       "</table>";
-               table = $(s).appendTo(element);
-               
-               head = table.find('thead');
-               headCells = head.find('th');
-               body = table.find('tbody');
-               bodyRows = body.find('tr');
-               bodyCells = body.find('td');
-               bodyFirstCells = bodyCells.filter(':first-child');
-               bodyCellTopInners = bodyRows.eq(0).find('div.fc-day-content div');
-               
-               markFirstLast(head.add(head.find('tr'))); // marks first+last tr/th's
-               markFirstLast(bodyRows); // marks first+last td's
-               bodyRows.eq(0).addClass('fc-first'); // fc-last is done in updateCells
-               
-               dayBind(bodyCells);
-               
-               daySegmentContainer =
-                       $("<div style='position:absolute;z-index:8;top:0;left:0'/>")
-                               .appendTo(element);
-       }
-       
-       
-       
-       function updateCells(firstTime) {
-               var dowDirty = firstTime || rowCnt == 1; // could the cells' day-of-weeks need updating?
-               var month = t.start.getMonth();
-               var today = clearTime(new Date());
-               var cell;
-               var date;
-               var row;
-       
-               if (dowDirty) {
-                       headCells.each(function(i, _cell) {
-                               cell = $(_cell);
-                               date = indexDate(i);
-                               cell.html(formatDate(date, colFormat));
-                               setDayID(cell, date);
-                       });
-               }
-               
-               bodyCells.each(function(i, _cell) {
-                       cell = $(_cell);
-                       date = indexDate(i);
-                       if (date.getMonth() == month) {
-                               cell.removeClass('fc-other-month');
-                       }else{
-                               cell.addClass('fc-other-month');
-                       }
-                       if (+date == +today) {
-                               cell.addClass(tm + '-state-highlight fc-today');
-                       }else{
-                               cell.removeClass(tm + '-state-highlight fc-today');
-                       }
-                       cell.find('div.fc-day-number').text(date.getDate());
-                       if (dowDirty) {
-                               setDayID(cell, date);
-                       }
-               });
-               
-               bodyRows.each(function(i, _row) {
-                       row = $(_row);
-                       if (i < rowCnt) {
-                               row.show();
-                               if (i == rowCnt-1) {
-                                       row.addClass('fc-last');
-                               }else{
-                                       row.removeClass('fc-last');
-                               }
-                       }else{
-                               row.hide();
-                       }
-               });
-       }
-       
-       
-       
-       function setHeight(height) {
-               viewHeight = height;
-               
-               var bodyHeight = viewHeight - head.height();
-               var rowHeight;
-               var rowHeightLast;
-               var cell;
-                       
-               if (opt('weekMode') == 'variable') {
-                       rowHeight = rowHeightLast = Math.floor(bodyHeight / (rowCnt==1 ? 2 : 6));
-               }else{
-                       rowHeight = Math.floor(bodyHeight / rowCnt);
-                       rowHeightLast = bodyHeight - rowHeight * (rowCnt-1);
-               }
-               
-               bodyFirstCells.each(function(i, _cell) {
-                       if (i < rowCnt) {
-                               cell = $(_cell);
-                               setMinHeight(
-                                       cell.find('> div'),
-                                       (i==rowCnt-1 ? rowHeightLast : rowHeight) - vsides(cell)
-                               );
-                       }
-               });
-               
-       }
-       
-       
-       function setWidth(width) {
-               viewWidth = width;
-               colContentPositions.clear();
-               colWidth = Math.floor(viewWidth / colCnt);
-               setOuterWidth(headCells.slice(0, -1), colWidth);
-       }
-       
-       
-       
-       /* Day clicking and binding
-       -----------------------------------------------------------*/
-       
-       
-       function dayBind(days) {
-               days.click(dayClick)
-                       .mousedown(daySelectionMousedown);
-       }
-       
-       
-       function dayClick(ev) {
-               if (!opt('selectable')) { // if selectable, SelectionManager will worry about dayClick
-                       var index = parseInt(this.className.match(/fc\-day(\d+)/)[1]); // TODO: maybe use .data
-                       var date = indexDate(index);
-                       trigger('dayClick', this, date, true, ev);
-               }
-       }
-       
-       
-       
-       /* Semi-transparent Overlay Helpers
-       ------------------------------------------------------*/
-       
-       
-       function renderDayOverlay(overlayStart, overlayEnd, refreshCoordinateGrid) { // overlayEnd is exclusive
-               if (refreshCoordinateGrid) {
-                       coordinateGrid.build();
-               }
-               var rowStart = cloneDate(t.visStart);
-               var rowEnd = addDays(cloneDate(rowStart), colCnt);
-               for (var i=0; i<rowCnt; i++) {
-                       var stretchStart = new Date(Math.max(rowStart, overlayStart));
-                       var stretchEnd = new Date(Math.min(rowEnd, overlayEnd));
-                       if (stretchStart < stretchEnd) {
-                               var colStart, colEnd;
-                               if (rtl) {
-                                       colStart = dayDiff(stretchEnd, rowStart)*dis+dit+1;
-                                       colEnd = dayDiff(stretchStart, rowStart)*dis+dit+1;
-                               }else{
-                                       colStart = dayDiff(stretchStart, rowStart);
-                                       colEnd = dayDiff(stretchEnd, rowStart);
-                               }
-                               dayBind(
-                                       renderCellOverlay(i, colStart, i, colEnd-1)
-                               );
-                       }
-                       addDays(rowStart, 7);
-                       addDays(rowEnd, 7);
-               }
-       }
-       
-       
-       function renderCellOverlay(row0, col0, row1, col1) { // row1,col1 is inclusive
-               var rect = coordinateGrid.rect(row0, col0, row1, col1, element);
-               return renderOverlay(rect, element);
-       }
-       
-       
-       
-       /* Selection
-       -----------------------------------------------------------------------*/
-       
-       
-       function defaultSelectionEnd(startDate, allDay) {
-               return cloneDate(startDate);
-       }
-       
-       
-       function renderSelection(startDate, endDate, allDay) {
-               renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true); // rebuild every time???
-       }
-       
-       
-       function clearSelection() {
-               clearOverlays();
-       }
-       
-       
-       function reportDayClick(date, allDay, ev) {
-               var cell = dateCell(date);
-               var _element = bodyCells[cell.row*colCnt + cell.col];
-               trigger('dayClick', _element, date, allDay, ev);
-       }
-       
-       
-       
-       /* External Dragging
-       -----------------------------------------------------------------------*/
-       
-       
-       function dragStart(_dragElement, ev, ui) {
-               hoverListener.start(function(cell) {
-                       clearOverlays();
-                       if (cell) {
-                               renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
-                       }
-               }, ev);
-       }
-       
-       
-       function dragStop(_dragElement, ev, ui) {
-               var cell = hoverListener.stop();
-               clearOverlays();
-               if (cell) {
-                       var d = cellDate(cell);
-                       trigger('drop', _dragElement, d, true, ev, ui);
-               }
-       }
-       
-       
-       
-       /* Utilities
-       --------------------------------------------------------*/
-       
-       
-       function defaultEventEnd(event) {
-               return cloneDate(event.start);
+
+       if (hasAllValues) {
+               return Promise.resolve(values);
        }
-       
-       
-       coordinateGrid = new CoordinateGrid(function(rows, cols) {
-               var e, n, p;
-               headCells.each(function(i, _e) {
-                       e = $(_e);
-                       n = e.offset().left;
-                       if (i) {
-                               p[1] = n;
-                       }
-                       p = [n];
-                       cols[i] = p;
-               });
-               p[1] = n + e.outerWidth();
-               bodyRows.each(function(i, _e) {
-                       if (i < rowCnt) {
-                               e = $(_e);
-                               n = e.offset().top;
-                               if (i) {
-                                       p[1] = n;
-                               }
-                               p = [n];
-                               rows[i] = p;
-                       }
+       else {
+               return $.when.apply($.when, inputs).then(function() {
+                       return $.when($.makeArray(arguments));
                });
-               p[1] = n + e.outerHeight();
-       });
-       
-       
-       hoverListener = new HoverListener(coordinateGrid);
-       
-       
-       colContentPositions = new HorizontalPositionCache(function(col) {
-               return bodyCellTopInners.eq(col);
-       });
-       
-       
-       function colContentLeft(col) {
-               return colContentPositions.left(col);
-       }
-       
-       
-       function colContentRight(col) {
-               return colContentPositions.right(col);
-       }
-       
-       
-       
-       
-       function dateCell(date) {
-               return {
-                       row: Math.floor(dayDiff(date, t.visStart) / 7),
-                       col: dayOfWeekCol(date.getDay())
-               };
        }
-       
-       
-       function cellDate(cell) {
-               return _cellDate(cell.row, cell.col);
-       }
-       
-       
-       function _cellDate(row, col) {
-               return addDays(cloneDate(t.visStart), row*7 + col*dis+dit);
-               // what about weekends in middle of week?
-       }
-       
-       
-       function indexDate(index) {
-               return _cellDate(Math.floor(index/colCnt), index%colCnt);
-       }
-       
-       
-       function dayOfWeekCol(dayOfWeek) {
-               return ((dayOfWeek - Math.max(firstDay, nwe) + colCnt) % colCnt) * dis + dit;
-       }
-       
-       
-       
-       
-       function allDayRow(i) {
-               return bodyRows.eq(i);
-       }
-       
-       
-       function allDayBounds(i) {
-               return {
-                       left: 0,
-                       right: viewWidth
-               };
-       }
-       
-       
-}
+};
 
-function BasicEventRenderer() {
-       var t = this;
-       
-       
-       // exports
-       t.renderEvents = renderEvents;
-       t.compileDaySegs = compileSegs; // for DayEventRenderer
-       t.clearEvents = clearEvents;
-       t.bindDaySeg = bindDaySeg;
-       
-       
-       // imports
-       DayEventRenderer.call(t);
-       var opt = t.opt;
-       var trigger = t.trigger;
-       //var setOverflowHidden = t.setOverflowHidden;
-       var isEventDraggable = t.isEventDraggable;
-       var isEventResizable = t.isEventResizable;
-       var reportEvents = t.reportEvents;
-       var reportEventClear = t.reportEventClear;
-       var eventElementHandlers = t.eventElementHandlers;
-       var showEvents = t.showEvents;
-       var hideEvents = t.hideEvents;
-       var eventDrop = t.eventDrop;
-       var getDaySegmentContainer = t.getDaySegmentContainer;
-       var getHoverListener = t.getHoverListener;
-       var renderDayOverlay = t.renderDayOverlay;
-       var clearOverlays = t.clearOverlays;
-       var getRowCnt = t.getRowCnt;
-       var getColCnt = t.getColCnt;
-       var renderDaySegs = t.renderDaySegs;
-       var resizableDayEvent = t.resizableDayEvent;
-       
-       
-       
-       /* Rendering
-       --------------------------------------------------------------------*/
-       
-       
-       function renderEvents(events, modifiedEventId) {
-               reportEvents(events);
-               renderDaySegs(compileSegs(events), modifiedEventId);
-       }
-       
-       
-       function clearEvents() {
-               reportEventClear();
-               getDaySegmentContainer().empty();
-       }
-       
-       
-       function compileSegs(events) {
-               var rowCnt = getRowCnt(),
-                       colCnt = getColCnt(),
-                       d1 = cloneDate(t.visStart),
-                       d2 = addDays(cloneDate(d1), colCnt),
-                       visEventsEnds = $.map(events, exclEndDay),
-                       i, row,
-                       j, level,
-                       k, seg,
-                       segs=[];
-               for (i=0; i<rowCnt; i++) {
-                       row = stackSegs(sliceSegs(events, visEventsEnds, d1, d2));
-                       for (j=0; j<row.length; j++) {
-                               level = row[j];
-                               for (k=0; k<level.length; k++) {
-                                       seg = level[k];
-                                       seg.row = i;
-                                       seg.level = j; // not needed anymore
-                                       segs.push(seg);
-                               }
-                       }
-                       addDays(d1, 7);
-                       addDays(d2, 7);
-               }
-               return segs;
-       }
-       
-       
-       function bindDaySeg(event, eventElement, seg) {
-               if (isEventDraggable(event)) {
-                       draggableDayEvent(event, eventElement);
-               }
-               if (seg.isEnd && isEventResizable(event)) {
-                       resizableDayEvent(event, eventElement, seg);
-               }
-               eventElementHandlers(event, eventElement);
-                       // needs to be after, because resizableDayEvent might stopImmediatePropagation on click
-       }
-       
-       
-       
-       /* Dragging
-       ----------------------------------------------------------------------------*/
-       
-       
-       function draggableDayEvent(event, eventElement) {
-               var hoverListener = getHoverListener();
-               var dayDelta;
-               eventElement.draggable({
-                       zIndex: 9,
-                       delay: 50,
-                       opacity: opt('dragOpacity'),
-                       revertDuration: opt('dragRevertDuration'),
-                       start: function(ev, ui) {
-                               trigger('eventDragStart', eventElement, event, ev, ui);
-                               hideEvents(event, eventElement);
-                               hoverListener.start(function(cell, origCell, rowDelta, colDelta) {
-                                       eventElement.draggable('option', 'revert', !cell || !rowDelta && !colDelta);
-                                       clearOverlays();
-                                       if (cell) {
-                                               //setOverflowHidden(true);
-                                               dayDelta = rowDelta*7 + colDelta * (opt('isRTL') ? -1 : 1);
-                                               renderDayOverlay(
-                                                       addDays(cloneDate(event.start), dayDelta),
-                                                       addDays(exclEndDay(event), dayDelta)
-                                               );
-                                       }else{
-                                               //setOverflowHidden(false);
-                                               dayDelta = 0;
-                                       }
-                               }, ev, 'drag');
-                       },
-                       stop: function(ev, ui) {
-                               hoverListener.stop();
-                               clearOverlays();
-                               trigger('eventDragStop', eventElement, event, ev, ui);
-                               if (dayDelta) {
-                                       eventDrop(this, event, dayDelta, 0, event.allDay, ev, ui);
-                               }else{
-                                       eventElement.css('filter', ''); // clear IE opacity side-effects
-                                       showEvents(event, eventElement);
-                               }
-                               //setOverflowHidden(false);
+;;
+
+// TODO: write tests and clean up code
+
+function TaskQueue(debounceWait) {
+       var q = []; // array of runFuncs
+
+       function addTask(taskFunc) {
+               return new Promise(function(resolve) {
+
+                       // should run this function when it's taskFunc's turn to run.
+                       // responsible for popping itself off the queue.
+                       var runFunc = function() {
+                               Promise.resolve(taskFunc()) // result might be async, coerce to promise
+                                       .then(resolve) // resolve TaskQueue::push's promise, for the caller. will receive result of taskFunc.
+                                       .then(function() {
+                                               q.shift(); // pop itself off
+
+                                               // run the next task, if any
+                                               if (q.length) {
+                                                       q[0]();
+                                               }
+                                       });
+                       };
+
+                       // always put the task at the end of the queue, BEFORE running the task
+                       q.push(runFunc);
+
+                       // if it's the only task in the queue, run immediately
+                       if (q.length === 1) {
+                               runFunc();
                        }
                });
        }
 
+       this.add = // potentially debounce, for the public method
+               typeof debounceWait === 'number' ?
+                       debounce(addTask, debounceWait) :
+                       addTask; // if not a number (null/undefined/false), no debounce at all
 
+       this.addQuickly = addTask; // guaranteed no debounce
 }
 
-fcViews.agendaWeek = AgendaWeekView;
+FC.TaskQueue = TaskQueue;
 
-function AgendaWeekView(element, calendar) {
-       var t = this;
-       
-       
-       // exports
-       t.render = render;
-       
-       
-       // imports
-       AgendaView.call(t, element, calendar, 'agendaWeek');
-       var opt = t.opt;
-       var renderAgenda = t.renderAgenda;
-       var formatDates = calendar.formatDates;
-       
-       
-       
-       function render(date, delta) {
-               if (delta) {
-                       addDays(date, delta * 7);
-               }
-               var start = addDays(cloneDate(date), -((date.getDay() - opt('firstDay') + 7) % 7));
-               var end = addDays(cloneDate(start), 7);
-               var visStart = cloneDate(start);
-               var visEnd = cloneDate(end);
-               var weekends = opt('weekends');
-               if (!weekends) {
-                       skipWeekend(visStart);
-                       skipWeekend(visEnd, -1, true);
-               }
-               t.title = formatDates(
-                       visStart,
-                       addDays(cloneDate(visEnd), -1),
-                       opt('titleFormat')
-               );
-               t.start = start;
-               t.end = end;
-               t.visStart = visStart;
-               t.visEnd = visEnd;
-               renderAgenda(weekends ? 7 : 5);
-       }
-       
+/*
+q = new TaskQueue();
 
+function work(i) {
+       return q.push(function() {
+               trigger();
+               console.log('work' + i);
+       });
 }
 
-fcViews.agendaDay = AgendaDayView;
+var cnt = 0;
 
-function AgendaDayView(element, calendar) {
-       var t = this;
-       
-       
-       // exports
-       t.render = render;
-       
-       
-       // imports
-       AgendaView.call(t, element, calendar, 'agendaDay');
-       var opt = t.opt;
-       var renderAgenda = t.renderAgenda;
-       var formatDate = calendar.formatDate;
-       
-       
-       
-       function render(date, delta) {
-               if (delta) {
-                       addDays(date, delta);
-                       if (!opt('weekends')) {
-                               skipWeekend(date, delta < 0 ? -1 : 1);
-                       }
-               }
-               var start = cloneDate(date, true);
-               var end = addDays(cloneDate(start), 1);
-               t.title = formatDate(date, opt('titleFormat'));
-               t.start = t.visStart = start;
-               t.end = t.visEnd = end;
-               renderAgenda(1);
+function trigger() {
+       if (cnt < 5) {
+               cnt++;
+               work(cnt);
        }
-       
-
 }
 
-setDefaults({
-       allDaySlot: true,
-       allDayText: 'all-day',
-       firstHour: 6,
-       slotMinutes: 30,
-       defaultEventMinutes: 120,
-       axisFormat: 'h(:mm)tt',
-       timeFormat: {
-               agenda: 'h:mm{ - h:mm}'
-       },
-       dragOpacity: {
-               agenda: .5
-       },
-       minTime: 0,
-       maxTime: 24
-});
+work(9);
+*/
 
+;;
 
-// TODO: make it work in quirks mode (event corners, all-day height)
-// TODO: test liquid width, especially in IE6
+var EmitterMixin = FC.EmitterMixin = {
 
+       // jQuery-ification via $(this) allows a non-DOM object to have
+       // the same event handling capabilities (including namespaces).
 
-function AgendaView(element, calendar, viewName) {
-       var t = this;
-       
-       
-       // exports
-       t.renderAgenda = renderAgenda;
-       t.setWidth = setWidth;
-       t.setHeight = setHeight;
-       t.beforeHide = beforeHide;
-       t.afterShow = afterShow;
-       t.defaultEventEnd = defaultEventEnd;
-       t.timePosition = timePosition;
-       t.dayOfWeekCol = dayOfWeekCol;
-       t.dateCell = dateCell;
-       t.cellDate = cellDate;
-       t.cellIsAllDay = cellIsAllDay;
-       t.allDayRow = getAllDayRow;
-       t.allDayBounds = allDayBounds;
-       t.getHoverListener = function() { return hoverListener };
-       t.colContentLeft = colContentLeft;
-       t.colContentRight = colContentRight;
-       t.getDaySegmentContainer = function() { return daySegmentContainer };
-       t.getSlotSegmentContainer = function() { return slotSegmentContainer };
-       t.getMinMinute = function() { return minMinute };
-       t.getMaxMinute = function() { return maxMinute };
-       t.getBodyContent = function() { return slotContent }; // !!??
-       t.getRowCnt = function() { return 1 };
-       t.getColCnt = function() { return colCnt };
-       t.getColWidth = function() { return colWidth };
-       t.getSlotHeight = function() { return slotHeight };
-       t.defaultSelectionEnd = defaultSelectionEnd;
-       t.renderDayOverlay = renderDayOverlay;
-       t.renderSelection = renderSelection;
-       t.clearSelection = clearSelection;
-       t.reportDayClick = reportDayClick; // selection mousedown hack
-       t.dragStart = dragStart;
-       t.dragStop = dragStop;
-       
-       
-       // imports
-       View.call(t, element, calendar, viewName);
-       OverlayManager.call(t);
-       SelectionManager.call(t);
-       AgendaEventRenderer.call(t);
-       var opt = t.opt;
-       var trigger = t.trigger;
-       var clearEvents = t.clearEvents;
-       var renderOverlay = t.renderOverlay;
-       var clearOverlays = t.clearOverlays;
-       var reportSelection = t.reportSelection;
-       var unselect = t.unselect;
-       var daySelectionMousedown = t.daySelectionMousedown;
-       var slotSegHtml = t.slotSegHtml;
-       var formatDate = calendar.formatDate;
-       
-       
-       // locals
-       
-       var dayTable;
-       var dayHead;
-       var dayHeadCells;
-       var dayBody;
-       var dayBodyCells;
-       var dayBodyCellInners;
-       var dayBodyFirstCell;
-       var dayBodyFirstCellStretcher;
-       var slotLayer;
-       var daySegmentContainer;
-       var allDayTable;
-       var allDayRow;
-       var slotScroller;
-       var slotContent;
-       var slotSegmentContainer;
-       var slotTable;
-       var slotTableFirstInner;
-       var axisFirstCells;
-       var gutterCells;
-       var selectionHelper;
-       
-       var viewWidth;
-       var viewHeight;
-       var axisWidth;
-       var colWidth;
-       var gutterWidth;
-       var slotHeight; // TODO: what if slotHeight changes? (see issue 650)
-       var savedScrollTop;
-       
-       var colCnt;
-       var slotCnt;
-       var coordinateGrid;
-       var hoverListener;
-       var colContentPositions;
-       var slotTopCache = {};
-       
-       var tm;
-       var firstDay;
-       var nwe;            // no weekends (int)
-       var rtl, dis, dit;  // day index sign / translate
-       var minMinute, maxMinute;
-       var colFormat;
-       
 
-       
-       /* Rendering
-       -----------------------------------------------------------------------------*/
-       
-       
-       disableTextSelection(element.addClass('fc-agenda'));
-       
-       
-       function renderAgenda(c) {
-               colCnt = c;
-               updateOptions();
-               if (!dayTable) {
-                       buildSkeleton();
-               }else{
-                       clearEvents();
-               }
-               updateCells();
-       }
-       
-       
-       
-       function updateOptions() {
-               tm = opt('theme') ? 'ui' : 'fc';
-               nwe = opt('weekends') ? 0 : 1;
-               firstDay = opt('firstDay');
-               if (rtl = opt('isRTL')) {
-                       dis = -1;
-                       dit = colCnt - 1;
-               }else{
-                       dis = 1;
-                       dit = 0;
-               }
-               minMinute = parseTime(opt('minTime'));
-               maxMinute = parseTime(opt('maxTime'));
-               colFormat = opt('columnFormat');
-       }
-       
-       
-       
-       function buildSkeleton() {
-               var headerClass = tm + "-widget-header";
-               var contentClass = tm + "-widget-content";
-               var s;
-               var i;
-               var d;
-               var maxd;
-               var minutes;
-               var slotNormal = opt('slotMinutes') % 15 == 0;
-               
-               s =
-                       "<table style='width:100%' class='fc-agenda-days fc-border-separate' cellspacing='0'>" +
-                       "<thead>" +
-                       "<tr>" +
-                       "<th class='fc-agenda-axis " + headerClass + "'>&nbsp;</th>";
-               for (i=0; i<colCnt; i++) {
-                       s +=
-                               "<th class='fc- fc-col" + i + ' ' + headerClass + "'/>"; // fc- needed for setDayID
-               }
-               s +=
-                       "<th class='fc-agenda-gutter " + headerClass + "'>&nbsp;</th>" +
-                       "</tr>" +
-                       "</thead>" +
-                       "<tbody>" +
-                       "<tr>" +
-                       "<th class='fc-agenda-axis " + headerClass + "'>&nbsp;</th>";
-               for (i=0; i<colCnt; i++) {
-                       s +=
-                               "<td class='fc- fc-col" + i + ' ' + contentClass + "'>" + // fc- needed for setDayID
-                               "<div>" +
-                               "<div class='fc-day-content'>" +
-                               "<div style='position:relative'>&nbsp;</div>" +
-                               "</div>" +
-                               "</div>" +
-                               "</td>";
-               }
-               s +=
-                       "<td class='fc-agenda-gutter " + contentClass + "'>&nbsp;</td>" +
-                       "</tr>" +
-                       "</tbody>" +
-                       "</table>";
-               dayTable = $(s).appendTo(element);
-               dayHead = dayTable.find('thead');
-               dayHeadCells = dayHead.find('th').slice(1, -1);
-               dayBody = dayTable.find('tbody');
-               dayBodyCells = dayBody.find('td').slice(0, -1);
-               dayBodyCellInners = dayBodyCells.find('div.fc-day-content div');
-               dayBodyFirstCell = dayBodyCells.eq(0);
-               dayBodyFirstCellStretcher = dayBodyFirstCell.find('> div');
-               
-               markFirstLast(dayHead.add(dayHead.find('tr')));
-               markFirstLast(dayBody.add(dayBody.find('tr')));
-               
-               axisFirstCells = dayHead.find('th:first');
-               gutterCells = dayTable.find('.fc-agenda-gutter');
-               
-               slotLayer =
-                       $("<div style='position:absolute;z-index:2;left:0;width:100%'/>")
-                               .appendTo(element);
-                               
-               if (opt('allDaySlot')) {
-               
-                       daySegmentContainer =
-                               $("<div style='position:absolute;z-index:8;top:0;left:0'/>")
-                                       .appendTo(slotLayer);
-               
-                       s =
-                               "<table style='width:100%' class='fc-agenda-allday' cellspacing='0'>" +
-                               "<tr>" +
-                               "<th class='" + headerClass + " fc-agenda-axis'>" + opt('allDayText') + "</th>" +
-                               "<td>" +
-                               "<div class='fc-day-content'><div style='position:relative'/></div>" +
-                               "</td>" +
-                               "<th class='" + headerClass + " fc-agenda-gutter'>&nbsp;</th>" +
-                               "</tr>" +
-                               "</table>";
-                       allDayTable = $(s).appendTo(slotLayer);
-                       allDayRow = allDayTable.find('tr');
-                       
-                       dayBind(allDayRow.find('td'));
-                       
-                       axisFirstCells = axisFirstCells.add(allDayTable.find('th:first'));
-                       gutterCells = gutterCells.add(allDayTable.find('th.fc-agenda-gutter'));
-                       
-                       slotLayer.append(
-                               "<div class='fc-agenda-divider " + headerClass + "'>" +
-                               "<div class='fc-agenda-divider-inner'/>" +
-                               "</div>"
+       on: function(types, handler) {
+               $(this).on(types, this._prepareIntercept(handler));
+               return this; // for chaining
+       },
+
+
+       one: function(types, handler) {
+               $(this).one(types, this._prepareIntercept(handler));
+               return this; // for chaining
+       },
+
+
+       _prepareIntercept: function(handler) {
+               // handlers are always called with an "event" object as their first param.
+               // sneak the `this` context and arguments into the extra parameter object
+               // and forward them on to the original handler.
+               var intercept = function(ev, extra) {
+                       return handler.apply(
+                               extra.context || this,
+                               extra.args || []
                        );
-                       
-               }else{
-               
-                       daySegmentContainer = $([]); // in jQuery 1.4, we can just do $()
-               
+               };
+
+               // mimick jQuery's internal "proxy" system (risky, I know)
+               // causing all functions with the same .guid to appear to be the same.
+               // https://github.com/jquery/jquery/blob/2.2.4/src/core.js#L448
+               // this is needed for calling .off with the original non-intercept handler.
+               if (!handler.guid) {
+                       handler.guid = $.guid++;
                }
-               
-               slotScroller =
-                       $("<div style='position:absolute;width:100%;overflow-x:hidden;overflow-y:auto'/>")
-                               .appendTo(slotLayer);
-                               
-               slotContent =
-                       $("<div style='position:relative;width:100%;overflow:hidden'/>")
-                               .appendTo(slotScroller);
-                               
-               slotSegmentContainer =
-                       $("<div style='position:absolute;z-index:8;top:0;left:0'/>")
-                               .appendTo(slotContent);
-               
-               s =
-                       "<table class='fc-agenda-slots' style='width:100%' cellspacing='0'>" +
-                       "<tbody>";
-               d = zeroDate();
-               maxd = addMinutes(cloneDate(d), maxMinute);
-               addMinutes(d, minMinute);
-               slotCnt = 0;
-               for (i=0; d < maxd; i++) {
-                       minutes = d.getMinutes();
-                       s +=
-                               "<tr class='fc-slot" + i + ' ' + (!minutes ? '' : 'fc-minor') + "'>" +
-                               "<th class='fc-agenda-axis " + headerClass + "'>" +
-                               ((!slotNormal || !minutes) ? formatDate(d, opt('axisFormat')) : '&nbsp;') +
-                               "</th>" +
-                               "<td class='" + contentClass + "'>" +
-                               "<div style='position:relative'>&nbsp;</div>" +
-                               "</td>" +
-                               "</tr>";
-                       addMinutes(d, opt('slotMinutes'));
-                       slotCnt++;
-               }
-               s +=
-                       "</tbody>" +
-                       "</table>";
-               slotTable = $(s).appendTo(slotContent);
-               slotTableFirstInner = slotTable.find('div:first');
-               
-               slotBind(slotTable.find('td'));
-               
-               axisFirstCells = axisFirstCells.add(slotTable.find('th:first'));
+               intercept.guid = handler.guid;
+
+               return intercept;
+       },
+
+
+       off: function(types, handler) {
+               $(this).off(types, handler);
+
+               return this; // for chaining
+       },
+
+
+       trigger: function(types) {
+               var args = Array.prototype.slice.call(arguments, 1); // arguments after the first
+
+               // pass in "extra" info to the intercept
+               $(this).triggerHandler(types, { args: args });
+
+               return this; // for chaining
+       },
+
+
+       triggerWith: function(types, context, args) {
+
+               // `triggerHandler` is less reliant on the DOM compared to `trigger`.
+               // pass in "extra" info to the intercept.
+               $(this).triggerHandler(types, { context: context, args: args });
+
+               return this; // for chaining
        }
-       
-       
-       
-       function updateCells() {
-               var i;
-               var headCell;
-               var bodyCell;
-               var date;
-               var today = clearTime(new Date());
-               for (i=0; i<colCnt; i++) {
-                       date = colDate(i);
-                       headCell = dayHeadCells.eq(i);
-                       headCell.html(formatDate(date, colFormat));
-                       bodyCell = dayBodyCells.eq(i);
-                       if (+date == +today) {
-                               bodyCell.addClass(tm + '-state-highlight fc-today');
-                       }else{
-                               bodyCell.removeClass(tm + '-state-highlight fc-today');
+
+};
+
+;;
+
+/*
+Utility methods for easily listening to events on another object,
+and more importantly, easily unlistening from them.
+*/
+var ListenerMixin = FC.ListenerMixin = (function() {
+       var guid = 0;
+       var ListenerMixin = {
+
+               listenerId: null,
+
+               /*
+               Given an `other` object that has on/off methods, bind the given `callback` to an event by the given name.
+               The `callback` will be called with the `this` context of the object that .listenTo is being called on.
+               Can be called:
+                       .listenTo(other, eventName, callback)
+               OR
+                       .listenTo(other, {
+                               eventName1: callback1,
+                               eventName2: callback2
+                       })
+               */
+               listenTo: function(other, arg, callback) {
+                       if (typeof arg === 'object') { // given dictionary of callbacks
+                               for (var eventName in arg) {
+                                       if (arg.hasOwnProperty(eventName)) {
+                                               this.listenTo(other, eventName, arg[eventName]);
+                                       }
+                               }
                        }
-                       setDayID(headCell.add(bodyCell), date);
+                       else if (typeof arg === 'string') {
+                               other.on(
+                                       arg + '.' + this.getListenerNamespace(), // use event namespacing to identify this object
+                                       $.proxy(callback, this) // always use `this` context
+                                               // the usually-undesired jQuery guid behavior doesn't matter,
+                                               // because we always unbind via namespace
+                               );
+                       }
+               },
+
+               /*
+               Causes the current object to stop listening to events on the `other` object.
+               `eventName` is optional. If omitted, will stop listening to ALL events on `other`.
+               */
+               stopListeningTo: function(other, eventName) {
+                       other.off((eventName || '') + '.' + this.getListenerNamespace());
+               },
+
+               /*
+               Returns a string, unique to this object, to be used for event namespacing
+               */
+               getListenerNamespace: function() {
+                       if (this.listenerId == null) {
+                               this.listenerId = guid++;
+                       }
+                       return '_listener' + this.listenerId;
                }
-       }
-       
-       
-       
-       function setHeight(height, dateChanged) {
-               if (height === undefined) {
-                       height = viewHeight;
+
+       };
+       return ListenerMixin;
+})();
+;;
+
+/* A rectangular panel that is absolutely positioned over other content
+------------------------------------------------------------------------------------------------------------------------
+Options:
+       - className (string)
+       - content (HTML string or jQuery element set)
+       - parentEl
+       - top
+       - left
+       - right (the x coord of where the right edge should be. not a "CSS" right)
+       - autoHide (boolean)
+       - show (callback)
+       - hide (callback)
+*/
+
+var Popover = Class.extend(ListenerMixin, {
+
+       isHidden: true,
+       options: null,
+       el: null, // the container element for the popover. generated by this object
+       margin: 10, // the space required between the popover and the edges of the scroll container
+
+
+       constructor: function(options) {
+               this.options = options || {};
+       },
+
+
+       // Shows the popover on the specified position. Renders it if not already
+       show: function() {
+               if (this.isHidden) {
+                       if (!this.el) {
+                               this.render();
+                       }
+                       this.el.show();
+                       this.position();
+                       this.isHidden = false;
+                       this.trigger('show');
                }
-               viewHeight = height;
-               slotTopCache = {};
-       
-               var headHeight = dayBody.position().top;
-               var allDayHeight = slotScroller.position().top; // including divider
-               var bodyHeight = Math.min( // total body height, including borders
-                       height - headHeight,   // when scrollbars
-                       slotTable.height() + allDayHeight + 1 // when no scrollbars. +1 for bottom border
-               );
-               
-               dayBodyFirstCellStretcher
-                       .height(bodyHeight - vsides(dayBodyFirstCell));
-               
-               slotLayer.css('top', headHeight);
-               
-               slotScroller.height(bodyHeight - allDayHeight - 1);
-               
-               slotHeight = slotTableFirstInner.height() + 1; // +1 for border
-               
-               if (dateChanged) {
-                       resetScroll();
+       },
+
+
+       // Hides the popover, through CSS, but does not remove it from the DOM
+       hide: function() {
+               if (!this.isHidden) {
+                       this.el.hide();
+                       this.isHidden = true;
+                       this.trigger('hide');
                }
-       }
-       
-       
-       
-       function setWidth(width) {
-               viewWidth = width;
-               colContentPositions.clear();
-               
-               axisWidth = 0;
-               setOuterWidth(
-                       axisFirstCells
-                               .width('')
-                               .each(function(i, _cell) {
-                                       axisWidth = Math.max(axisWidth, $(_cell).outerWidth());
-                               }),
-                       axisWidth
-               );
-               
-               var slotTableWidth = slotScroller[0].clientWidth; // needs to be done after axisWidth (for IE7)
-               //slotTable.width(slotTableWidth);
-               
-               gutterWidth = slotScroller.width() - slotTableWidth;
-               if (gutterWidth) {
-                       setOuterWidth(gutterCells, gutterWidth);
-                       gutterCells
-                               .show()
-                               .prev()
-                               .removeClass('fc-last');
-               }else{
-                       gutterCells
-                               .hide()
-                               .prev()
-                               .addClass('fc-last');
+       },
+
+
+       // Creates `this.el` and renders content inside of it
+       render: function() {
+               var _this = this;
+               var options = this.options;
+
+               this.el = $('<div class="fc-popover"/>')
+                       .addClass(options.className || '')
+                       .css({
+                               // position initially to the top left to avoid creating scrollbars
+                               top: 0,
+                               left: 0
+                       })
+                       .append(options.content)
+                       .appendTo(options.parentEl);
+
+               // when a click happens on anything inside with a 'fc-close' className, hide the popover
+               this.el.on('click', '.fc-close', function() {
+                       _this.hide();
+               });
+
+               if (options.autoHide) {
+                       this.listenTo($(document), 'mousedown', this.documentMousedown);
                }
-               
-               colWidth = Math.floor((slotTableWidth - axisWidth) / colCnt);
-               setOuterWidth(dayHeadCells.slice(0, -1), colWidth);
-       }
-       
+       },
 
 
-       function resetScroll() {
-               var d0 = zeroDate();
-               var scrollDate = cloneDate(d0);
-               scrollDate.setHours(opt('firstHour'));
-               var top = timePosition(d0, scrollDate) + 1; // +1 for the border
-               function scroll() {
-                       slotScroller.scrollTop(top);
+       // Triggered when the user clicks *anywhere* in the document, for the autoHide feature
+       documentMousedown: function(ev) {
+               // only hide the popover if the click happened outside the popover
+               if (this.el && !$(ev.target).closest(this.el).length) {
+                       this.hide();
                }
-               scroll();
-               setTimeout(scroll, 0); // overrides any previous scroll state made by the browser
-       }
-       
-       
-       function beforeHide() {
-               savedScrollTop = slotScroller.scrollTop();
-       }
-       
-       
-       function afterShow() {
-               slotScroller.scrollTop(savedScrollTop);
-       }
-       
-       
-       
-       /* Slot/Day clicking and binding
-       -----------------------------------------------------------------------*/
-       
+       },
 
-       function dayBind(cells) {
-               cells.click(slotClick)
-                       .mousedown(daySelectionMousedown);
-       }
 
+       // Hides and unregisters any handlers
+       removeElement: function() {
+               this.hide();
 
-       function slotBind(cells) {
-               cells.click(slotClick)
-                       .mousedown(slotSelectionMousedown);
-       }
-       
-       
-       function slotClick(ev) {
-               if (!opt('selectable')) { // if selectable, SelectionManager will worry about dayClick
-                       var col = Math.min(colCnt-1, Math.floor((ev.pageX - dayTable.offset().left - axisWidth) / colWidth));
-                       var date = colDate(col);
-                       var rowMatch = this.parentNode.className.match(/fc-slot(\d+)/); // TODO: maybe use data
-                       if (rowMatch) {
-                               var mins = parseInt(rowMatch[1]) * opt('slotMinutes');
-                               var hours = Math.floor(mins/60);
-                               date.setHours(hours);
-                               date.setMinutes(mins%60 + minMinute);
-                               trigger('dayClick', dayBodyCells[col], date, false, ev);
-                       }else{
-                               trigger('dayClick', dayBodyCells[col], date, true, ev);
-                       }
+               if (this.el) {
+                       this.el.remove();
+                       this.el = null;
                }
-       }
-       
-       
-       
-       /* Semi-transparent Overlay Helpers
-       -----------------------------------------------------*/
-       
 
-       function renderDayOverlay(startDate, endDate, refreshCoordinateGrid) { // endDate is exclusive
-               if (refreshCoordinateGrid) {
-                       coordinateGrid.build();
+               this.stopListeningTo($(document), 'mousedown');
+       },
+
+
+       // Positions the popover optimally, using the top/left/right options
+       position: function() {
+               var options = this.options;
+               var origin = this.el.offsetParent().offset();
+               var width = this.el.outerWidth();
+               var height = this.el.outerHeight();
+               var windowEl = $(window);
+               var viewportEl = getScrollParent(this.el);
+               var viewportTop;
+               var viewportLeft;
+               var viewportOffset;
+               var top; // the "position" (not "offset") values for the popover
+               var left; //
+
+               // compute top and left
+               top = options.top || 0;
+               if (options.left !== undefined) {
+                       left = options.left;
+               }
+               else if (options.right !== undefined) {
+                       left = options.right - width; // derive the left value from the right value
                }
-               var visStart = cloneDate(t.visStart);
-               var startCol, endCol;
-               if (rtl) {
-                       startCol = dayDiff(endDate, visStart)*dis+dit+1;
-                       endCol = dayDiff(startDate, visStart)*dis+dit+1;
-               }else{
-                       startCol = dayDiff(startDate, visStart);
-                       endCol = dayDiff(endDate, visStart);
-               }
-               startCol = Math.max(0, startCol);
-               endCol = Math.min(colCnt, endCol);
-               if (startCol < endCol) {
-                       dayBind(
-                               renderCellOverlay(0, startCol, 0, endCol-1)
-                       );
+               else {
+                       left = 0;
                }
-       }
-       
-       
-       function renderCellOverlay(row0, col0, row1, col1) { // only for all-day?
-               var rect = coordinateGrid.rect(row0, col0, row1, col1, slotLayer);
-               return renderOverlay(rect, slotLayer);
-       }
-       
 
-       function renderSlotOverlay(overlayStart, overlayEnd) {
-               var dayStart = cloneDate(t.visStart);
-               var dayEnd = addDays(cloneDate(dayStart), 1);
-               for (var i=0; i<colCnt; i++) {
-                       var stretchStart = new Date(Math.max(dayStart, overlayStart));
-                       var stretchEnd = new Date(Math.min(dayEnd, overlayEnd));
-                       if (stretchStart < stretchEnd) {
-                               var col = i*dis+dit;
-                               var rect = coordinateGrid.rect(0, col, 0, col, slotContent); // only use it for horizontal coords
-                               var top = timePosition(dayStart, stretchStart);
-                               var bottom = timePosition(dayStart, stretchEnd);
-                               rect.top = top;
-                               rect.height = bottom - top;
-                               slotBind(
-                                       renderOverlay(rect, slotContent)
-                               );
-                       }
-                       addDays(dayStart, 1);
-                       addDays(dayEnd, 1);
+               if (viewportEl.is(window) || viewportEl.is(document)) { // normalize getScrollParent's result
+                       viewportEl = windowEl;
+                       viewportTop = 0; // the window is always at the top left
+                       viewportLeft = 0; // (and .offset() won't work if called here)
                }
-       }
-       
-       
-       
-       /* Coordinate Utilities
-       -----------------------------------------------------------------------------*/
-       
-       
-       coordinateGrid = new CoordinateGrid(function(rows, cols) {
-               var e, n, p;
-               dayHeadCells.each(function(i, _e) {
-                       e = $(_e);
-                       n = e.offset().left;
-                       if (i) {
-                               p[1] = n;
-                       }
-                       p = [n];
-                       cols[i] = p;
-               });
-               p[1] = n + e.outerWidth();
-               if (opt('allDaySlot')) {
-                       e = allDayRow;
-                       n = e.offset().top;
-                       rows[0] = [n, n+e.outerHeight()];
-               }
-               var slotTableTop = slotContent.offset().top;
-               var slotScrollerTop = slotScroller.offset().top;
-               var slotScrollerBottom = slotScrollerTop + slotScroller.outerHeight();
-               function constrain(n) {
-                       return Math.max(slotScrollerTop, Math.min(slotScrollerBottom, n));
-               }
-               for (var i=0; i<slotCnt; i++) {
-                       rows.push([
-                               constrain(slotTableTop + slotHeight*i),
-                               constrain(slotTableTop + slotHeight*(i+1))
-                       ]);
+               else {
+                       viewportOffset = viewportEl.offset();
+                       viewportTop = viewportOffset.top;
+                       viewportLeft = viewportOffset.left;
                }
-       });
-       
-       
-       hoverListener = new HoverListener(coordinateGrid);
-       
-       
-       colContentPositions = new HorizontalPositionCache(function(col) {
-               return dayBodyCellInners.eq(col);
-       });
-       
-       
-       function colContentLeft(col) {
-               return colContentPositions.left(col);
-       }
-       
-       
-       function colContentRight(col) {
-               return colContentPositions.right(col);
-       }
-       
-       
-       
-       
-       function dateCell(date) { // "cell" terminology is now confusing
-               return {
-                       row: Math.floor(dayDiff(date, t.visStart) / 7),
-                       col: dayOfWeekCol(date.getDay())
-               };
-       }
-       
-       
-       function cellDate(cell) {
-               var d = colDate(cell.col);
-               var slotIndex = cell.row;
-               if (opt('allDaySlot')) {
-                       slotIndex--;
+
+               // if the window is scrolled, it causes the visible area to be further down
+               viewportTop += windowEl.scrollTop();
+               viewportLeft += windowEl.scrollLeft();
+
+               // constrain to the view port. if constrained by two edges, give precedence to top/left
+               if (options.viewportConstrain !== false) {
+                       top = Math.min(top, viewportTop + viewportEl.outerHeight() - height - this.margin);
+                       top = Math.max(top, viewportTop + this.margin);
+                       left = Math.min(left, viewportLeft + viewportEl.outerWidth() - width - this.margin);
+                       left = Math.max(left, viewportLeft + this.margin);
                }
-               if (slotIndex >= 0) {
-                       addMinutes(d, minMinute + slotIndex * opt('slotMinutes'));
+
+               this.el.css({
+                       top: top - origin.top,
+                       left: left - origin.left
+               });
+       },
+
+
+       // Triggers a callback. Calls a function in the option hash of the same name.
+       // Arguments beyond the first `name` are forwarded on.
+       // TODO: better code reuse for this. Repeat code
+       trigger: function(name) {
+               if (this.options[name]) {
+                       this.options[name].apply(this, Array.prototype.slice.call(arguments, 1));
                }
-               return d;
-       }
-       
-       
-       function colDate(col) { // returns dates with 00:00:00
-               return addDays(cloneDate(t.visStart), col*dis+dit);
-       }
-       
-       
-       function cellIsAllDay(cell) {
-               return opt('allDaySlot') && !cell.row;
-       }
-       
-       
-       function dayOfWeekCol(dayOfWeek) {
-               return ((dayOfWeek - Math.max(firstDay, nwe) + colCnt) % colCnt)*dis+dit;
-       }
-       
-       
-       
-       
-       // get the Y coordinate of the given time on the given day (both Date objects)
-       function timePosition(day, time) { // both date objects. day holds 00:00 of current day
-               day = cloneDate(day, true);
-               if (time < addMinutes(cloneDate(day), minMinute)) {
-                       return 0;
-               }
-               if (time >= addMinutes(cloneDate(day), maxMinute)) {
-                       return slotTable.height();
-               }
-               var slotMinutes = opt('slotMinutes'),
-                       minutes = time.getHours()*60 + time.getMinutes() - minMinute,
-                       slotI = Math.floor(minutes / slotMinutes),
-                       slotTop = slotTopCache[slotI];
-               if (slotTop === undefined) {
-                       slotTop = slotTopCache[slotI] = slotTable.find('tr:eq(' + slotI + ') td div')[0].offsetTop; //.position().top; // need this optimization???
-               }
-               return Math.max(0, Math.round(
-                       slotTop - 1 + slotHeight * ((minutes % slotMinutes) / slotMinutes)
-               ));
        }
-       
-       
-       function allDayBounds() {
-               return {
-                       left: axisWidth,
-                       right: viewWidth - gutterWidth
+
+});
+
+;;
+
+/*
+A cache for the left/right/top/bottom/width/height values for one or more elements.
+Works with both offset (from topleft document) and position (from offsetParent).
+
+options:
+- els
+- isHorizontal
+- isVertical
+*/
+var CoordCache = FC.CoordCache = Class.extend({
+
+       els: null, // jQuery set (assumed to be siblings)
+       forcedOffsetParentEl: null, // options can override the natural offsetParent
+       origin: null, // {left,top} position of offsetParent of els
+       boundingRect: null, // constrain cordinates to this rectangle. {left,right,top,bottom} or null
+       isHorizontal: false, // whether to query for left/right/width
+       isVertical: false, // whether to query for top/bottom/height
+
+       // arrays of coordinates (offsets from topleft of document)
+       lefts: null,
+       rights: null,
+       tops: null,
+       bottoms: null,
+
+
+       constructor: function(options) {
+               this.els = $(options.els);
+               this.isHorizontal = options.isHorizontal;
+               this.isVertical = options.isVertical;
+               this.forcedOffsetParentEl = options.offsetParent ? $(options.offsetParent) : null;
+       },
+
+
+       // Queries the els for coordinates and stores them.
+       // Call this method before using and of the get* methods below.
+       build: function() {
+               var offsetParentEl = this.forcedOffsetParentEl;
+               if (!offsetParentEl && this.els.length > 0) {
+                       offsetParentEl = this.els.eq(0).offsetParent();
                }
-       }
-       
-       
-       function getAllDayRow(index) {
-               return allDayRow;
-       }
-       
-       
-       function defaultEventEnd(event) {
-               var start = cloneDate(event.start);
-               if (event.allDay) {
-                       return start;
+
+               this.origin = offsetParentEl ?
+                       offsetParentEl.offset() :
+                       null;
+
+               this.boundingRect = this.queryBoundingRect();
+
+               if (this.isHorizontal) {
+                       this.buildElHorizontals();
                }
-               return addMinutes(start, opt('defaultEventMinutes'));
-       }
-       
-       
-       
-       /* Selection
-       ---------------------------------------------------------------------------------*/
-       
-       
-       function defaultSelectionEnd(startDate, allDay) {
-               if (allDay) {
-                       return cloneDate(startDate);
+               if (this.isVertical) {
+                       this.buildElVerticals();
                }
-               return addMinutes(cloneDate(startDate), opt('slotMinutes'));
-       }
-       
-       
-       function renderSelection(startDate, endDate, allDay) { // only for all-day
-               if (allDay) {
-                       if (opt('allDaySlot')) {
-                               renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true);
-                       }
-               }else{
-                       renderSlotSelection(startDate, endDate);
+       },
+
+
+       // Destroys all internal data about coordinates, freeing memory
+       clear: function() {
+               this.origin = null;
+               this.boundingRect = null;
+               this.lefts = null;
+               this.rights = null;
+               this.tops = null;
+               this.bottoms = null;
+       },
+
+
+       // When called, if coord caches aren't built, builds them
+       ensureBuilt: function() {
+               if (!this.origin) {
+                       this.build();
                }
-       }
-       
-       
-       function renderSlotSelection(startDate, endDate) {
-               var helperOption = opt('selectHelper');
-               coordinateGrid.build();
-               if (helperOption) {
-                       var col = dayDiff(startDate, t.visStart) * dis + dit;
-                       if (col >= 0 && col < colCnt) { // only works when times are on same day
-                               var rect = coordinateGrid.rect(0, col, 0, col, slotContent); // only for horizontal coords
-                               var top = timePosition(startDate, startDate);
-                               var bottom = timePosition(startDate, endDate);
-                               if (bottom > top) { // protect against selections that are entirely before or after visible range
-                                       rect.top = top;
-                                       rect.height = bottom - top;
-                                       rect.left += 2;
-                                       rect.width -= 5;
-                                       if ($.isFunction(helperOption)) {
-                                               var helperRes = helperOption(startDate, endDate);
-                                               if (helperRes) {
-                                                       rect.position = 'absolute';
-                                                       rect.zIndex = 8;
-                                                       selectionHelper = $(helperRes)
-                                                               .css(rect)
-                                                               .appendTo(slotContent);
-                                               }
-                                       }else{
-                                               rect.isStart = true; // conside rect a "seg" now
-                                               rect.isEnd = true;   //
-                                               selectionHelper = $(slotSegHtml(
-                                                       {
-                                                               title: '',
-                                                               start: startDate,
-                                                               end: endDate,
-                                                               className: ['fc-select-helper'],
-                                                               editable: false
-                                                       },
-                                                       rect
-                                               ));
-                                               selectionHelper.css('opacity', opt('dragOpacity'));
-                                       }
-                                       if (selectionHelper) {
-                                               slotBind(selectionHelper);
-                                               slotContent.append(selectionHelper);
-                                               setOuterWidth(selectionHelper, rect.width, true); // needs to be after appended
-                                               setOuterHeight(selectionHelper, rect.height, true);
-                                       }
-                               }
-                       }
-               }else{
-                       renderSlotOverlay(startDate, endDate);
-               }
-       }
-       
-       
-       function clearSelection() {
-               clearOverlays();
-               if (selectionHelper) {
-                       selectionHelper.remove();
-                       selectionHelper = null;
-               }
-       }
-       
-       
-       function slotSelectionMousedown(ev) {
-               if (ev.which == 1 && opt('selectable')) { // ev.which==1 means left mouse button
-                       unselect(ev);
-                       var dates;
-                       hoverListener.start(function(cell, origCell) {
-                               clearSelection();
-                               if (cell && cell.col == origCell.col && !cellIsAllDay(cell)) {
-                                       var d1 = cellDate(origCell);
-                                       var d2 = cellDate(cell);
-                                       dates = [
-                                               d1,
-                                               addMinutes(cloneDate(d1), opt('slotMinutes')),
-                                               d2,
-                                               addMinutes(cloneDate(d2), opt('slotMinutes'))
-                                       ].sort(cmp);
-                                       renderSlotSelection(dates[0], dates[3]);
-                               }else{
-                                       dates = null;
-                               }
-                       }, ev);
-                       $(document).one('mouseup', function(ev) {
-                               hoverListener.stop();
-                               if (dates) {
-                                       if (+dates[0] == +dates[1]) {
-                                               reportDayClick(dates[0], false, ev);
-                                       }
-                                       reportSelection(dates[0], dates[3], false, ev);
-                               }
-                       });
-               }
-       }
-       
-       
-       function reportDayClick(date, allDay, ev) {
-               trigger('dayClick', dayBodyCells[dayOfWeekCol(date.getDay())], date, allDay, ev);
-       }
-       
-       
-       
-       /* External Dragging
-       --------------------------------------------------------------------------------*/
-       
-       
-       function dragStart(_dragElement, ev, ui) {
-               hoverListener.start(function(cell) {
-                       clearOverlays();
-                       if (cell) {
-                               if (cellIsAllDay(cell)) {
-                                       renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
-                               }else{
-                                       var d1 = cellDate(cell);
-                                       var d2 = addMinutes(cloneDate(d1), opt('defaultEventMinutes'));
-                                       renderSlotOverlay(d1, d2);
-                               }
+       },
+
+
+       // Populates the left/right internal coordinate arrays
+       buildElHorizontals: function() {
+               var lefts = [];
+               var rights = [];
+
+               this.els.each(function(i, node) {
+                       var el = $(node);
+                       var left = el.offset().left;
+                       var width = el.outerWidth();
+
+                       lefts.push(left);
+                       rights.push(left + width);
+               });
+
+               this.lefts = lefts;
+               this.rights = rights;
+       },
+
+
+       // Populates the top/bottom internal coordinate arrays
+       buildElVerticals: function() {
+               var tops = [];
+               var bottoms = [];
+
+               this.els.each(function(i, node) {
+                       var el = $(node);
+                       var top = el.offset().top;
+                       var height = el.outerHeight();
+
+                       tops.push(top);
+                       bottoms.push(top + height);
+               });
+
+               this.tops = tops;
+               this.bottoms = bottoms;
+       },
+
+
+       // Given a left offset (from document left), returns the index of the el that it horizontally intersects.
+       // If no intersection is made, returns undefined.
+       getHorizontalIndex: function(leftOffset) {
+               this.ensureBuilt();
+
+               var lefts = this.lefts;
+               var rights = this.rights;
+               var len = lefts.length;
+               var i;
+
+               for (i = 0; i < len; i++) {
+                       if (leftOffset >= lefts[i] && leftOffset < rights[i]) {
+                               return i;
                        }
-               }, ev);
-       }
-       
-       
-       function dragStop(_dragElement, ev, ui) {
-               var cell = hoverListener.stop();
-               clearOverlays();
-               if (cell) {
-                       trigger('drop', _dragElement, cellDate(cell), cellIsAllDay(cell), ev, ui);
                }
-       }
+       },
 
 
-}
+       // Given a top offset (from document top), returns the index of the el that it vertically intersects.
+       // If no intersection is made, returns undefined.
+       getVerticalIndex: function(topOffset) {
+               this.ensureBuilt();
 
-function AgendaEventRenderer() {
-       var t = this;
-       
-       
-       // exports
-       t.renderEvents = renderEvents;
-       t.compileDaySegs = compileDaySegs; // for DayEventRenderer
-       t.clearEvents = clearEvents;
-       t.slotSegHtml = slotSegHtml;
-       t.bindDaySeg = bindDaySeg;
-       
-       
-       // imports
-       DayEventRenderer.call(t);
-       var opt = t.opt;
-       var trigger = t.trigger;
-       //var setOverflowHidden = t.setOverflowHidden;
-       var isEventDraggable = t.isEventDraggable;
-       var isEventResizable = t.isEventResizable;
-       var eventEnd = t.eventEnd;
-       var reportEvents = t.reportEvents;
-       var reportEventClear = t.reportEventClear;
-       var eventElementHandlers = t.eventElementHandlers;
-       var setHeight = t.setHeight;
-       var getDaySegmentContainer = t.getDaySegmentContainer;
-       var getSlotSegmentContainer = t.getSlotSegmentContainer;
-       var getHoverListener = t.getHoverListener;
-       var getMaxMinute = t.getMaxMinute;
-       var getMinMinute = t.getMinMinute;
-       var timePosition = t.timePosition;
-       var colContentLeft = t.colContentLeft;
-       var colContentRight = t.colContentRight;
-       var renderDaySegs = t.renderDaySegs;
-       var resizableDayEvent = t.resizableDayEvent; // TODO: streamline binding architecture
-       var getColCnt = t.getColCnt;
-       var getColWidth = t.getColWidth;
-       var getSlotHeight = t.getSlotHeight;
-       var getBodyContent = t.getBodyContent;
-       var reportEventElement = t.reportEventElement;
-       var showEvents = t.showEvents;
-       var hideEvents = t.hideEvents;
-       var eventDrop = t.eventDrop;
-       var eventResize = t.eventResize;
-       var renderDayOverlay = t.renderDayOverlay;
-       var clearOverlays = t.clearOverlays;
-       var calendar = t.calendar;
-       var formatDate = calendar.formatDate;
-       var formatDates = calendar.formatDates;
-       
-       
-       
-       /* Rendering
-       ----------------------------------------------------------------------------*/
-       
+               var tops = this.tops;
+               var bottoms = this.bottoms;
+               var len = tops.length;
+               var i;
 
-       function renderEvents(events, modifiedEventId) {
-               reportEvents(events);
-               var i, len=events.length,
-                       dayEvents=[],
-                       slotEvents=[];
-               for (i=0; i<len; i++) {
-                       if (events[i].allDay) {
-                               dayEvents.push(events[i]);
-                       }else{
-                               slotEvents.push(events[i]);
+               for (i = 0; i < len; i++) {
+                       if (topOffset >= tops[i] && topOffset < bottoms[i]) {
+                               return i;
                        }
                }
-               if (opt('allDaySlot')) {
-                       renderDaySegs(compileDaySegs(dayEvents), modifiedEventId);
-                       setHeight(); // no params means set to viewHeight
-               }
-               renderSlotSegs(compileSlotSegs(slotEvents), modifiedEventId);
-       }
-       
-       
-       function clearEvents() {
-               reportEventClear();
-               getDaySegmentContainer().empty();
-               getSlotSegmentContainer().empty();
-       }
-       
-       
-       function compileDaySegs(events) {
-               var levels = stackSegs(sliceSegs(events, $.map(events, exclEndDay), t.visStart, t.visEnd)),
-                       i, levelCnt=levels.length, level,
-                       j, seg,
-                       segs=[];
-               for (i=0; i<levelCnt; i++) {
-                       level = levels[i];
-                       for (j=0; j<level.length; j++) {
-                               seg = level[j];
-                               seg.row = 0;
-                               seg.level = i; // not needed anymore
-                               segs.push(seg);
+       },
+
+
+       // Gets the left offset (from document left) of the element at the given index
+       getLeftOffset: function(leftIndex) {
+               this.ensureBuilt();
+               return this.lefts[leftIndex];
+       },
+
+
+       // Gets the left position (from offsetParent left) of the element at the given index
+       getLeftPosition: function(leftIndex) {
+               this.ensureBuilt();
+               return this.lefts[leftIndex] - this.origin.left;
+       },
+
+
+       // Gets the right offset (from document left) of the element at the given index.
+       // This value is NOT relative to the document's right edge, like the CSS concept of "right" would be.
+       getRightOffset: function(leftIndex) {
+               this.ensureBuilt();
+               return this.rights[leftIndex];
+       },
+
+
+       // Gets the right position (from offsetParent left) of the element at the given index.
+       // This value is NOT relative to the offsetParent's right edge, like the CSS concept of "right" would be.
+       getRightPosition: function(leftIndex) {
+               this.ensureBuilt();
+               return this.rights[leftIndex] - this.origin.left;
+       },
+
+
+       // Gets the width of the element at the given index
+       getWidth: function(leftIndex) {
+               this.ensureBuilt();
+               return this.rights[leftIndex] - this.lefts[leftIndex];
+       },
+
+
+       // Gets the top offset (from document top) of the element at the given index
+       getTopOffset: function(topIndex) {
+               this.ensureBuilt();
+               return this.tops[topIndex];
+       },
+
+
+       // Gets the top position (from offsetParent top) of the element at the given position
+       getTopPosition: function(topIndex) {
+               this.ensureBuilt();
+               return this.tops[topIndex] - this.origin.top;
+       },
+
+       // Gets the bottom offset (from the document top) of the element at the given index.
+       // This value is NOT relative to the offsetParent's bottom edge, like the CSS concept of "bottom" would be.
+       getBottomOffset: function(topIndex) {
+               this.ensureBuilt();
+               return this.bottoms[topIndex];
+       },
+
+
+       // Gets the bottom position (from the offsetParent top) of the element at the given index.
+       // This value is NOT relative to the offsetParent's bottom edge, like the CSS concept of "bottom" would be.
+       getBottomPosition: function(topIndex) {
+               this.ensureBuilt();
+               return this.bottoms[topIndex] - this.origin.top;
+       },
+
+
+       // Gets the height of the element at the given index
+       getHeight: function(topIndex) {
+               this.ensureBuilt();
+               return this.bottoms[topIndex] - this.tops[topIndex];
+       },
+
+
+       // Bounding Rect
+       // TODO: decouple this from CoordCache
+
+       // Compute and return what the elements' bounding rectangle is, from the user's perspective.
+       // Right now, only returns a rectangle if constrained by an overflow:scroll element.
+       // Returns null if there are no elements
+       queryBoundingRect: function() {
+               var scrollParentEl;
+
+               if (this.els.length > 0) {
+                       scrollParentEl = getScrollParent(this.els.eq(0));
+
+                       if (!scrollParentEl.is(document)) {
+                               return getClientRect(scrollParentEl);
                        }
                }
-               return segs;
+
+               return null;
+       },
+
+       isPointInBounds: function(leftOffset, topOffset) {
+               return this.isLeftInBounds(leftOffset) && this.isTopInBounds(topOffset);
+       },
+
+       isLeftInBounds: function(leftOffset) {
+               return !this.boundingRect || (leftOffset >= this.boundingRect.left && leftOffset < this.boundingRect.right);
+       },
+
+       isTopInBounds: function(topOffset) {
+               return !this.boundingRect || (topOffset >= this.boundingRect.top && topOffset < this.boundingRect.bottom);
        }
-       
-       
-       function compileSlotSegs(events) {
-               var colCnt = getColCnt(),
-                       minMinute = getMinMinute(),
-                       maxMinute = getMaxMinute(),
-                       d = addMinutes(cloneDate(t.visStart), minMinute),
-                       visEventEnds = $.map(events, slotEventEnd),
-                       i, col,
-                       j, level,
-                       k, seg,
-                       segs=[];
-               for (i=0; i<colCnt; i++) {
-                       col = stackSegs(sliceSegs(events, visEventEnds, d, addMinutes(cloneDate(d), maxMinute-minMinute)));
-                       countForwardSegs(col);
-                       for (j=0; j<col.length; j++) {
-                               level = col[j];
-                               for (k=0; k<level.length; k++) {
-                                       seg = level[k];
-                                       seg.col = i;
-                                       seg.level = j;
-                                       segs.push(seg);
-                               }
+
+});
+
+;;
+
+/* Tracks a drag's mouse movement, firing various handlers
+----------------------------------------------------------------------------------------------------------------------*/
+// TODO: use Emitter
+
+var DragListener = FC.DragListener = Class.extend(ListenerMixin, {
+
+       options: null,
+       subjectEl: null,
+
+       // coordinates of the initial mousedown
+       originX: null,
+       originY: null,
+
+       // the wrapping element that scrolls, or MIGHT scroll if there's overflow.
+       // TODO: do this for wrappers that have overflow:hidden as well.
+       scrollEl: null,
+
+       isInteracting: false,
+       isDistanceSurpassed: false,
+       isDelayEnded: false,
+       isDragging: false,
+       isTouch: false,
+
+       delay: null,
+       delayTimeoutId: null,
+       minDistance: null,
+
+       shouldCancelTouchScroll: true,
+       scrollAlwaysKills: false,
+
+
+       constructor: function(options) {
+               this.options = options || {};
+       },
+
+
+       // Interaction (high-level)
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       startInteraction: function(ev, extraOptions) {
+               var isTouch = getEvIsTouch(ev);
+
+               if (ev.type === 'mousedown') {
+                       if (GlobalEmitter.get().shouldIgnoreMouse()) {
+                               return;
                        }
-                       addDays(d, 1, true);
-               }
-               return segs;
-       }
-       
-       
-       function slotEventEnd(event) {
-               if (event.end) {
-                       return cloneDate(event.end);
-               }else{
-                       return addMinutes(cloneDate(event.start), opt('defaultEventMinutes'));
-               }
-       }
-       
-       
-       // renders events in the 'time slots' at the bottom
-       
-       function renderSlotSegs(segs, modifiedEventId) {
-       
-               var i, segCnt=segs.length, seg,
-                       event,
-                       classes,
-                       top, bottom,
-                       colI, levelI, forward,
-                       leftmost,
-                       availWidth,
-                       outerWidth,
-                       left,
-                       html='',
-                       eventElements,
-                       eventElement,
-                       triggerRes,
-                       vsideCache={},
-                       hsideCache={},
-                       key, val,
-                       contentElement,
-                       height,
-                       slotSegmentContainer = getSlotSegmentContainer(),
-                       rtl, dis, dit,
-                       colCnt = getColCnt();
-                       
-               if (rtl = opt('isRTL')) {
-                       dis = -1;
-                       dit = colCnt - 1;
-               }else{
-                       dis = 1;
-                       dit = 0;
-               }
-                       
-               // calculate position/dimensions, create html
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       event = seg.event;
-                       top = timePosition(seg.start, seg.start);
-                       bottom = timePosition(seg.start, seg.end);
-                       colI = seg.col;
-                       levelI = seg.level;
-                       forward = seg.forward || 0;
-                       leftmost = colContentLeft(colI*dis + dit);
-                       availWidth = colContentRight(colI*dis + dit) - leftmost;
-                       availWidth = Math.min(availWidth-6, availWidth*.95); // TODO: move this to CSS
-                       if (levelI) {
-                               // indented and thin
-                               outerWidth = availWidth / (levelI + forward + 1);
-                       }else{
-                               if (forward) {
-                                       // moderately wide, aligned left still
-                                       outerWidth = ((availWidth / (forward + 1)) - (12/2)) * 2; // 12 is the predicted width of resizer =
-                               }else{
-                                       // can be entire width, aligned left
-                                       outerWidth = availWidth;
-                               }
+                       else if (!isPrimaryMouseButton(ev)) {
+                               return;
                        }
-                       left = leftmost +                                  // leftmost possible
-                               (availWidth / (levelI + forward + 1) * levelI) // indentation
-                               * dis + (rtl ? availWidth - outerWidth : 0);   // rtl
-                       seg.top = top;
-                       seg.left = left;
-                       seg.outerWidth = outerWidth;
-                       seg.outerHeight = bottom - top;
-                       html += slotSegHtml(event, seg);
-               }
-               slotSegmentContainer[0].innerHTML = html; // faster than html()
-               eventElements = slotSegmentContainer.children();
-               
-               // retrieve elements, run through eventRender callback, bind event handlers
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       event = seg.event;
-                       eventElement = $(eventElements[i]); // faster than eq()
-                       triggerRes = trigger('eventRender', event, event, eventElement);
-                       if (triggerRes === false) {
-                               eventElement.remove();
-                       }else{
-                               if (triggerRes && triggerRes !== true) {
-                                       eventElement.remove();
-                                       eventElement = $(triggerRes)
-                                               .css({
-                                                       position: 'absolute',
-                                                       top: seg.top,
-                                                       left: seg.left
-                                               })
-                                               .appendTo(slotSegmentContainer);
-                               }
-                               seg.element = eventElement;
-                               if (event._id === modifiedEventId) {
-                                       bindSlotSeg(event, eventElement, seg);
-                               }else{
-                                       eventElement[0]._fci = i; // for lazySegBind
-                               }
-                               reportEventElement(event, eventElement);
+                       else {
+                               ev.preventDefault(); // prevents native selection in most browsers
                        }
                }
-               
-               lazySegBind(slotSegmentContainer, segs, bindSlotSeg);
-               
-               // record event sides and title positions
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       if (eventElement = seg.element) {
-                               val = vsideCache[key = seg.key = cssKey(eventElement[0])];
-                               seg.vsides = val === undefined ? (vsideCache[key] = vsides(eventElement, true)) : val;
-                               val = hsideCache[key];
-                               seg.hsides = val === undefined ? (hsideCache[key] = hsides(eventElement, true)) : val;
-                               contentElement = eventElement.find('div.fc-event-content');
-                               if (contentElement.length) {
-                                       seg.contentTop = contentElement[0].offsetTop;
-                               }
+
+               if (!this.isInteracting) {
+
+                       // process options
+                       extraOptions = extraOptions || {};
+                       this.delay = firstDefined(extraOptions.delay, this.options.delay, 0);
+                       this.minDistance = firstDefined(extraOptions.distance, this.options.distance, 0);
+                       this.subjectEl = this.options.subjectEl;
+
+                       preventSelection($('body'));
+
+                       this.isInteracting = true;
+                       this.isTouch = isTouch;
+                       this.isDelayEnded = false;
+                       this.isDistanceSurpassed = false;
+
+                       this.originX = getEvX(ev);
+                       this.originY = getEvY(ev);
+                       this.scrollEl = getScrollParent($(ev.target));
+
+                       this.bindHandlers();
+                       this.initAutoScroll();
+                       this.handleInteractionStart(ev);
+                       this.startDelay(ev);
+
+                       if (!this.minDistance) {
+                               this.handleDistanceSurpassed(ev);
                        }
                }
-               
-               // set all positions/dimensions at once
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       if (eventElement = seg.element) {
-                               eventElement[0].style.width = Math.max(0, seg.outerWidth - seg.hsides) + 'px';
-                               height = Math.max(0, seg.outerHeight - seg.vsides);
-                               eventElement[0].style.height = height + 'px';
-                               event = seg.event;
-                               if (seg.contentTop !== undefined && height - seg.contentTop < 10) {
-                                       // not enough room for title, put it in the time header
-                                       eventElement.find('div.fc-event-time')
-                                               .text(formatDate(event.start, opt('timeFormat')) + ' - ' + event.title);
-                                       eventElement.find('div.fc-event-title')
-                                               .remove();
-                               }
-                               trigger('eventAfterRender', event, event, eventElement);
+       },
+
+
+       handleInteractionStart: function(ev) {
+               this.trigger('interactionStart', ev);
+       },
+
+
+       endInteraction: function(ev, isCancelled) {
+               if (this.isInteracting) {
+                       this.endDrag(ev);
+
+                       if (this.delayTimeoutId) {
+                               clearTimeout(this.delayTimeoutId);
+                               this.delayTimeoutId = null;
                        }
+
+                       this.destroyAutoScroll();
+                       this.unbindHandlers();
+
+                       this.isInteracting = false;
+                       this.handleInteractionEnd(ev, isCancelled);
+
+                       allowSelection($('body'));
                }
-                                       
-       }
-       
-       
-       function slotSegHtml(event, seg) {
-               var html = "<";
-               var url = event.url;
-               var skinCss = getSkinCss(event, opt);
-               var skinCssAttr = (skinCss ? " style='" + skinCss + "'" : '');
-               var classes = ['fc-event', 'fc-event-skin', 'fc-event-vert'];
-               if (isEventDraggable(event)) {
-                       classes.push('fc-event-draggable');
-               }
-               if (seg.isStart) {
-                       classes.push('fc-corner-top');
+       },
+
+
+       handleInteractionEnd: function(ev, isCancelled) {
+               this.trigger('interactionEnd', ev, isCancelled || false);
+       },
+
+
+       // Binding To DOM
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       bindHandlers: function() {
+               // some browsers (Safari in iOS 10) don't allow preventDefault on touch events that are bound after touchstart,
+               // so listen to the GlobalEmitter singleton, which is always bound, instead of the document directly.
+               var globalEmitter = GlobalEmitter.get();
+
+               if (this.isTouch) {
+                       this.listenTo(globalEmitter, {
+                               touchmove: this.handleTouchMove,
+                               touchend: this.endInteraction,
+                               scroll: this.handleTouchScroll
+                       });
                }
-               if (seg.isEnd) {
-                       classes.push('fc-corner-bottom');
+               else {
+                       this.listenTo(globalEmitter, {
+                               mousemove: this.handleMouseMove,
+                               mouseup: this.endInteraction
+                       });
                }
-               classes = classes.concat(event.className);
-               if (event.source) {
-                       classes = classes.concat(event.source.className || []);
+
+               this.listenTo(globalEmitter, {
+                       selectstart: preventDefault, // don't allow selection while dragging
+                       contextmenu: preventDefault // long taps would open menu on Chrome dev tools
+               });
+       },
+
+
+       unbindHandlers: function() {
+               this.stopListeningTo(GlobalEmitter.get());
+       },
+
+
+       // Drag (high-level)
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       // extraOptions ignored if drag already started
+       startDrag: function(ev, extraOptions) {
+               this.startInteraction(ev, extraOptions); // ensure interaction began
+
+               if (!this.isDragging) {
+                       this.isDragging = true;
+                       this.handleDragStart(ev);
                }
-               if (url) {
-                       html += "a href='" + htmlEscape(event.url) + "'";
-               }else{
-                       html += "div";
-               }
-               html +=
-                       " class='" + classes.join(' ') + "'" +
-                       " style='position:absolute;z-index:8;top:" + seg.top + "px;left:" + seg.left + "px;" + skinCss + "'" +
-                       ">" +
-                       "<div class='fc-event-inner fc-event-skin'" + skinCssAttr + ">" +
-                       "<div class='fc-event-head fc-event-skin'" + skinCssAttr + ">" +
-                       "<div class='fc-event-time'>" +
-                       htmlEscape(formatDates(event.start, event.end, opt('timeFormat'))) +
-                       "</div>" +
-                       "</div>" +
-                       "<div class='fc-event-content'>" +
-                       "<div class='fc-event-title'>" +
-                       htmlEscape(event.title) +
-                       "</div>" +
-                       "</div>" +
-                       "<div class='fc-event-bg'></div>" +
-                       "</div>"; // close inner
-               if (seg.isEnd && isEventResizable(event)) {
-                       html +=
-                               "<div class='ui-resizable-handle ui-resizable-s'>=</div>";
+       },
+
+
+       handleDragStart: function(ev) {
+               this.trigger('dragStart', ev);
+       },
+
+
+       handleMove: function(ev) {
+               var dx = getEvX(ev) - this.originX;
+               var dy = getEvY(ev) - this.originY;
+               var minDistance = this.minDistance;
+               var distanceSq; // current distance from the origin, squared
+
+               if (!this.isDistanceSurpassed) {
+                       distanceSq = dx * dx + dy * dy;
+                       if (distanceSq >= minDistance * minDistance) { // use pythagorean theorem
+                               this.handleDistanceSurpassed(ev);
+                       }
                }
-               html +=
-                       "</" + (url ? "a" : "div") + ">";
-               return html;
-       }
-       
-       
-       function bindDaySeg(event, eventElement, seg) {
-               if (isEventDraggable(event)) {
-                       draggableDayEvent(event, eventElement, seg.isStart);
+
+               if (this.isDragging) {
+                       this.handleDrag(dx, dy, ev);
                }
-               if (seg.isEnd && isEventResizable(event)) {
-                       resizableDayEvent(event, eventElement, seg);
+       },
+
+
+       // Called while the mouse is being moved and when we know a legitimate drag is taking place
+       handleDrag: function(dx, dy, ev) {
+               this.trigger('drag', dx, dy, ev);
+               this.updateAutoScroll(ev); // will possibly cause scrolling
+       },
+
+
+       endDrag: function(ev) {
+               if (this.isDragging) {
+                       this.isDragging = false;
+                       this.handleDragEnd(ev);
                }
-               eventElementHandlers(event, eventElement);
-                       // needs to be after, because resizableDayEvent might stopImmediatePropagation on click
-       }
-       
-       
-       function bindSlotSeg(event, eventElement, seg) {
-               var timeElement = eventElement.find('div.fc-event-time');
-               if (isEventDraggable(event)) {
-                       draggableSlotEvent(event, eventElement, timeElement);
+       },
+
+
+       handleDragEnd: function(ev) {
+               this.trigger('dragEnd', ev);
+       },
+
+
+       // Delay
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       startDelay: function(initialEv) {
+               var _this = this;
+
+               if (this.delay) {
+                       this.delayTimeoutId = setTimeout(function() {
+                               _this.handleDelayEnd(initialEv);
+                       }, this.delay);
                }
-               if (seg.isEnd && isEventResizable(event)) {
-                       resizableSlotEvent(event, eventElement, timeElement);
+               else {
+                       this.handleDelayEnd(initialEv);
+               }
+       },
+
+
+       handleDelayEnd: function(initialEv) {
+               this.isDelayEnded = true;
+
+               if (this.isDistanceSurpassed) {
+                       this.startDrag(initialEv);
+               }
+       },
+
+
+       // Distance
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       handleDistanceSurpassed: function(ev) {
+               this.isDistanceSurpassed = true;
+
+               if (this.isDelayEnded) {
+                       this.startDrag(ev);
+               }
+       },
+
+
+       // Mouse / Touch
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       handleTouchMove: function(ev) {
+
+               // prevent inertia and touchmove-scrolling while dragging
+               if (this.isDragging && this.shouldCancelTouchScroll) {
+                       ev.preventDefault();
+               }
+
+               this.handleMove(ev);
+       },
+
+
+       handleMouseMove: function(ev) {
+               this.handleMove(ev);
+       },
+
+
+       // Scrolling (unrelated to auto-scroll)
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       handleTouchScroll: function(ev) {
+               // if the drag is being initiated by touch, but a scroll happens before
+               // the drag-initiating delay is over, cancel the drag
+               if (!this.isDragging || this.scrollAlwaysKills) {
+                       this.endInteraction(ev, true); // isCancelled=true
+               }
+       },
+
+
+       // Utils
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       // Triggers a callback. Calls a function in the option hash of the same name.
+       // Arguments beyond the first `name` are forwarded on.
+       trigger: function(name) {
+               if (this.options[name]) {
+                       this.options[name].apply(this, Array.prototype.slice.call(arguments, 1));
+               }
+               // makes _methods callable by event name. TODO: kill this
+               if (this['_' + name]) {
+                       this['_' + name].apply(this, Array.prototype.slice.call(arguments, 1));
                }
-               eventElementHandlers(event, eventElement);
        }
-       
-       
-       
-       /* Dragging
-       -----------------------------------------------------------------------------------*/
-       
-       
-       // when event starts out FULL-DAY
-       
-       function draggableDayEvent(event, eventElement, isStart) {
-               var origWidth;
-               var revert;
-               var allDay=true;
-               var dayDelta;
-               var dis = opt('isRTL') ? -1 : 1;
-               var hoverListener = getHoverListener();
-               var colWidth = getColWidth();
-               var slotHeight = getSlotHeight();
-               var minMinute = getMinMinute();
-               eventElement.draggable({
-                       zIndex: 9,
-                       opacity: opt('dragOpacity', 'month'), // use whatever the month view was using
-                       revertDuration: opt('dragRevertDuration'),
-                       start: function(ev, ui) {
-                               trigger('eventDragStart', eventElement, event, ev, ui);
-                               hideEvents(event, eventElement);
-                               origWidth = eventElement.width();
-                               hoverListener.start(function(cell, origCell, rowDelta, colDelta) {
-                                       clearOverlays();
-                                       if (cell) {
-                                               //setOverflowHidden(true);
-                                               revert = false;
-                                               dayDelta = colDelta * dis;
-                                               if (!cell.row) {
-                                                       // on full-days
-                                                       renderDayOverlay(
-                                                               addDays(cloneDate(event.start), dayDelta),
-                                                               addDays(exclEndDay(event), dayDelta)
-                                                       );
-                                                       resetElement();
-                                               }else{
-                                                       // mouse is over bottom slots
-                                                       if (isStart) {
-                                                               if (allDay) {
-                                                                       // convert event to temporary slot-event
-                                                                       eventElement.width(colWidth - 10); // don't use entire width
-                                                                       setOuterHeight(
-                                                                               eventElement,
-                                                                               slotHeight * Math.round(
-                                                                                       (event.end ? ((event.end - event.start) / MINUTE_MS) : opt('defaultEventMinutes'))
-                                                                                       / opt('slotMinutes')
-                                                                               )
-                                                                       );
-                                                                       eventElement.draggable('option', 'grid', [colWidth, 1]);
-                                                                       allDay = false;
-                                                               }
-                                                       }else{
-                                                               revert = true;
-                                                       }
-                                               }
-                                               revert = revert || (allDay && !dayDelta);
-                                       }else{
-                                               resetElement();
-                                               //setOverflowHidden(false);
-                                               revert = true;
-                                       }
-                                       eventElement.draggable('option', 'revert', revert);
-                               }, ev, 'drag');
-                       },
-                       stop: function(ev, ui) {
-                               hoverListener.stop();
-                               clearOverlays();
-                               trigger('eventDragStop', eventElement, event, ev, ui);
-                               if (revert) {
-                                       // hasn't moved or is out of bounds (draggable has already reverted)
-                                       resetElement();
-                                       eventElement.css('filter', ''); // clear IE opacity side-effects
-                                       showEvents(event, eventElement);
-                               }else{
-                                       // changed!
-                                       var minuteDelta = 0;
-                                       if (!allDay) {
-                                               minuteDelta = Math.round((eventElement.offset().top - getBodyContent().offset().top) / slotHeight)
-                                                       * opt('slotMinutes')
-                                                       + minMinute
-                                                       - (event.start.getHours() * 60 + event.start.getMinutes());
-                                       }
-                                       eventDrop(this, event, dayDelta, minuteDelta, allDay, ev, ui);
-                               }
-                               //setOverflowHidden(false);
+
+
+});
+
+;;
+/*
+this.scrollEl is set in DragListener
+*/
+DragListener.mixin({
+
+       isAutoScroll: false,
+
+       scrollBounds: null, // { top, bottom, left, right }
+       scrollTopVel: null, // pixels per second
+       scrollLeftVel: null, // pixels per second
+       scrollIntervalId: null, // ID of setTimeout for scrolling animation loop
+
+       // defaults
+       scrollSensitivity: 30, // pixels from edge for scrolling to start
+       scrollSpeed: 200, // pixels per second, at maximum speed
+       scrollIntervalMs: 50, // millisecond wait between scroll increment
+
+
+       initAutoScroll: function() {
+               var scrollEl = this.scrollEl;
+
+               this.isAutoScroll =
+                       this.options.scroll &&
+                       scrollEl &&
+                       !scrollEl.is(window) &&
+                       !scrollEl.is(document);
+
+               if (this.isAutoScroll) {
+                       // debounce makes sure rapid calls don't happen
+                       this.listenTo(scrollEl, 'scroll', debounce(this.handleDebouncedScroll, 100));
+               }
+       },
+
+
+       destroyAutoScroll: function() {
+               this.endAutoScroll(); // kill any animation loop
+
+               // remove the scroll handler if there is a scrollEl
+               if (this.isAutoScroll) {
+                       this.stopListeningTo(this.scrollEl, 'scroll'); // will probably get removed by unbindHandlers too :(
+               }
+       },
+
+
+       // Computes and stores the bounding rectangle of scrollEl
+       computeScrollBounds: function() {
+               if (this.isAutoScroll) {
+                       this.scrollBounds = getOuterRect(this.scrollEl);
+                       // TODO: use getClientRect in future. but prevents auto scrolling when on top of scrollbars
+               }
+       },
+
+
+       // Called when the dragging is in progress and scrolling should be updated
+       updateAutoScroll: function(ev) {
+               var sensitivity = this.scrollSensitivity;
+               var bounds = this.scrollBounds;
+               var topCloseness, bottomCloseness;
+               var leftCloseness, rightCloseness;
+               var topVel = 0;
+               var leftVel = 0;
+
+               if (bounds) { // only scroll if scrollEl exists
+
+                       // compute closeness to edges. valid range is from 0.0 - 1.0
+                       topCloseness = (sensitivity - (getEvY(ev) - bounds.top)) / sensitivity;
+                       bottomCloseness = (sensitivity - (bounds.bottom - getEvY(ev))) / sensitivity;
+                       leftCloseness = (sensitivity - (getEvX(ev) - bounds.left)) / sensitivity;
+                       rightCloseness = (sensitivity - (bounds.right - getEvX(ev))) / sensitivity;
+
+                       // translate vertical closeness into velocity.
+                       // mouse must be completely in bounds for velocity to happen.
+                       if (topCloseness >= 0 && topCloseness <= 1) {
+                               topVel = topCloseness * this.scrollSpeed * -1; // negative. for scrolling up
                        }
-               });
-               function resetElement() {
-                       if (!allDay) {
-                               eventElement
-                                       .width(origWidth)
-                                       .height('')
-                                       .draggable('option', 'grid', null);
-                               allDay = true;
+                       else if (bottomCloseness >= 0 && bottomCloseness <= 1) {
+                               topVel = bottomCloseness * this.scrollSpeed;
+                       }
+
+                       // translate horizontal closeness into velocity
+                       if (leftCloseness >= 0 && leftCloseness <= 1) {
+                               leftVel = leftCloseness * this.scrollSpeed * -1; // negative. for scrolling left
+                       }
+                       else if (rightCloseness >= 0 && rightCloseness <= 1) {
+                               leftVel = rightCloseness * this.scrollSpeed;
+                       }
+               }
+
+               this.setScrollVel(topVel, leftVel);
+       },
+
+
+       // Sets the speed-of-scrolling for the scrollEl
+       setScrollVel: function(topVel, leftVel) {
+
+               this.scrollTopVel = topVel;
+               this.scrollLeftVel = leftVel;
+
+               this.constrainScrollVel(); // massages into realistic values
+
+               // if there is non-zero velocity, and an animation loop hasn't already started, then START
+               if ((this.scrollTopVel || this.scrollLeftVel) && !this.scrollIntervalId) {
+                       this.scrollIntervalId = setInterval(
+                               proxy(this, 'scrollIntervalFunc'), // scope to `this`
+                               this.scrollIntervalMs
+                       );
+               }
+       },
+
+
+       // Forces scrollTopVel and scrollLeftVel to be zero if scrolling has already gone all the way
+       constrainScrollVel: function() {
+               var el = this.scrollEl;
+
+               if (this.scrollTopVel < 0) { // scrolling up?
+                       if (el.scrollTop() <= 0) { // already scrolled all the way up?
+                               this.scrollTopVel = 0;
+                       }
+               }
+               else if (this.scrollTopVel > 0) { // scrolling down?
+                       if (el.scrollTop() + el[0].clientHeight >= el[0].scrollHeight) { // already scrolled all the way down?
+                               this.scrollTopVel = 0;
+                       }
+               }
+
+               if (this.scrollLeftVel < 0) { // scrolling left?
+                       if (el.scrollLeft() <= 0) { // already scrolled all the left?
+                               this.scrollLeftVel = 0;
+                       }
+               }
+               else if (this.scrollLeftVel > 0) { // scrolling right?
+                       if (el.scrollLeft() + el[0].clientWidth >= el[0].scrollWidth) { // already scrolled all the way right?
+                               this.scrollLeftVel = 0;
                        }
                }
+       },
+
+
+       // This function gets called during every iteration of the scrolling animation loop
+       scrollIntervalFunc: function() {
+               var el = this.scrollEl;
+               var frac = this.scrollIntervalMs / 1000; // considering animation frequency, what the vel should be mult'd by
+
+               // change the value of scrollEl's scroll
+               if (this.scrollTopVel) {
+                       el.scrollTop(el.scrollTop() + this.scrollTopVel * frac);
+               }
+               if (this.scrollLeftVel) {
+                       el.scrollLeft(el.scrollLeft() + this.scrollLeftVel * frac);
+               }
+
+               this.constrainScrollVel(); // since the scroll values changed, recompute the velocities
+
+               // if scrolled all the way, which causes the vels to be zero, stop the animation loop
+               if (!this.scrollTopVel && !this.scrollLeftVel) {
+                       this.endAutoScroll();
+               }
+       },
+
+
+       // Kills any existing scrolling animation loop
+       endAutoScroll: function() {
+               if (this.scrollIntervalId) {
+                       clearInterval(this.scrollIntervalId);
+                       this.scrollIntervalId = null;
+
+                       this.handleScrollEnd();
+               }
+       },
+
+
+       // Get called when the scrollEl is scrolled (NOTE: this is delayed via debounce)
+       handleDebouncedScroll: function() {
+               // recompute all coordinates, but *only* if this is *not* part of our scrolling animation
+               if (!this.scrollIntervalId) {
+                       this.handleScrollEnd();
+               }
+       },
+
+
+       // Called when scrolling has stopped, whether through auto scroll, or the user scrolling
+       handleScrollEnd: function() {
        }
-       
-       
-       // when event starts out IN TIMESLOTS
-       
-       function draggableSlotEvent(event, eventElement, timeElement) {
-               var origPosition;
-               var allDay=false;
-               var dayDelta;
-               var minuteDelta;
-               var prevMinuteDelta;
-               var dis = opt('isRTL') ? -1 : 1;
-               var hoverListener = getHoverListener();
-               var colCnt = getColCnt();
-               var colWidth = getColWidth();
-               var slotHeight = getSlotHeight();
-               eventElement.draggable({
-                       zIndex: 9,
-                       scroll: false,
-                       grid: [colWidth, slotHeight],
-                       axis: colCnt==1 ? 'y' : false,
-                       opacity: opt('dragOpacity'),
-                       revertDuration: opt('dragRevertDuration'),
-                       start: function(ev, ui) {
-                               trigger('eventDragStart', eventElement, event, ev, ui);
-                               hideEvents(event, eventElement);
-                               origPosition = eventElement.position();
-                               minuteDelta = prevMinuteDelta = 0;
-                               hoverListener.start(function(cell, origCell, rowDelta, colDelta) {
-                                       eventElement.draggable('option', 'revert', !cell);
-                                       clearOverlays();
-                                       if (cell) {
-                                               dayDelta = colDelta * dis;
-                                               if (opt('allDaySlot') && !cell.row) {
-                                                       // over full days
-                                                       if (!allDay) {
-                                                               // convert to temporary all-day event
-                                                               allDay = true;
-                                                               timeElement.hide();
-                                                               eventElement.draggable('option', 'grid', null);
-                                                       }
-                                                       renderDayOverlay(
-                                                               addDays(cloneDate(event.start), dayDelta),
-                                                               addDays(exclEndDay(event), dayDelta)
-                                                       );
-                                               }else{
-                                                       // on slots
-                                                       resetElement();
-                                               }
-                                       }
-                               }, ev, 'drag');
-                       },
-                       drag: function(ev, ui) {
-                               minuteDelta = Math.round((ui.position.top - origPosition.top) / slotHeight) * opt('slotMinutes');
-                               if (minuteDelta != prevMinuteDelta) {
-                                       if (!allDay) {
-                                               updateTimeText(minuteDelta);
-                                       }
-                                       prevMinuteDelta = minuteDelta;
-                               }
-                       },
-                       stop: function(ev, ui) {
-                               var cell = hoverListener.stop();
-                               clearOverlays();
-                               trigger('eventDragStop', eventElement, event, ev, ui);
-                               if (cell && (dayDelta || minuteDelta || allDay)) {
-                                       // changed!
-                                       eventDrop(this, event, dayDelta, allDay ? 0 : minuteDelta, allDay, ev, ui);
-                               }else{
-                                       // either no change or out-of-bounds (draggable has already reverted)
-                                       resetElement();
-                                       eventElement.css('filter', ''); // clear IE opacity side-effects
-                                       eventElement.css(origPosition); // sometimes fast drags make event revert to wrong position
-                                       updateTimeText(0);
-                                       showEvents(event, eventElement);
+
+});
+;;
+
+/* Tracks mouse movements over a component and raises events about which hit the mouse is over.
+------------------------------------------------------------------------------------------------------------------------
+options:
+- subjectEl
+- subjectCenter
+*/
+
+var HitDragListener = DragListener.extend({
+
+       component: null, // converts coordinates to hits
+               // methods: hitsNeeded, hitsNotNeeded, queryHit
+
+       origHit: null, // the hit the mouse was over when listening started
+       hit: null, // the hit the mouse is over
+       coordAdjust: null, // delta that will be added to the mouse coordinates when computing collisions
+
+
+       constructor: function(component, options) {
+               DragListener.call(this, options); // call the super-constructor
+
+               this.component = component;
+       },
+
+
+       // Called when drag listening starts (but a real drag has not necessarily began).
+       // ev might be undefined if dragging was started manually.
+       handleInteractionStart: function(ev) {
+               var subjectEl = this.subjectEl;
+               var subjectRect;
+               var origPoint;
+               var point;
+
+               this.component.hitsNeeded();
+               this.computeScrollBounds(); // for autoscroll
+
+               if (ev) {
+                       origPoint = { left: getEvX(ev), top: getEvY(ev) };
+                       point = origPoint;
+
+                       // constrain the point to bounds of the element being dragged
+                       if (subjectEl) {
+                               subjectRect = getOuterRect(subjectEl); // used for centering as well
+                               point = constrainPoint(point, subjectRect);
+                       }
+
+                       this.origHit = this.queryHit(point.left, point.top);
+
+                       // treat the center of the subject as the collision point?
+                       if (subjectEl && this.options.subjectCenter) {
+
+                               // only consider the area the subject overlaps the hit. best for large subjects.
+                               // TODO: skip this if hit didn't supply left/right/top/bottom
+                               if (this.origHit) {
+                                       subjectRect = intersectRects(this.origHit, subjectRect) ||
+                                               subjectRect; // in case there is no intersection
                                }
+
+                               point = getRectCenter(subjectRect);
                        }
-               });
-               function updateTimeText(minuteDelta) {
-                       var newStart = addMinutes(cloneDate(event.start), minuteDelta);
-                       var newEnd;
-                       if (event.end) {
-                               newEnd = addMinutes(cloneDate(event.end), minuteDelta);
+
+                       this.coordAdjust = diffPoints(point, origPoint); // point - origPoint
+               }
+               else {
+                       this.origHit = null;
+                       this.coordAdjust = null;
+               }
+
+               // call the super-method. do it after origHit has been computed
+               DragListener.prototype.handleInteractionStart.apply(this, arguments);
+       },
+
+
+       // Called when the actual drag has started
+       handleDragStart: function(ev) {
+               var hit;
+
+               DragListener.prototype.handleDragStart.apply(this, arguments); // call the super-method
+
+               // might be different from this.origHit if the min-distance is large
+               hit = this.queryHit(getEvX(ev), getEvY(ev));
+
+               // report the initial hit the mouse is over
+               // especially important if no min-distance and drag starts immediately
+               if (hit) {
+                       this.handleHitOver(hit);
+               }
+       },
+
+
+       // Called when the drag moves
+       handleDrag: function(dx, dy, ev) {
+               var hit;
+
+               DragListener.prototype.handleDrag.apply(this, arguments); // call the super-method
+
+               hit = this.queryHit(getEvX(ev), getEvY(ev));
+
+               if (!isHitsEqual(hit, this.hit)) { // a different hit than before?
+                       if (this.hit) {
+                               this.handleHitOut();
                        }
-                       timeElement.text(formatDates(newStart, newEnd, opt('timeFormat')));
+                       if (hit) {
+                               this.handleHitOver(hit);
+                       }
+               }
+       },
+
+
+       // Called when dragging has been stopped
+       handleDragEnd: function() {
+               this.handleHitDone();
+               DragListener.prototype.handleDragEnd.apply(this, arguments); // call the super-method
+       },
+
+
+       // Called when a the mouse has just moved over a new hit
+       handleHitOver: function(hit) {
+               var isOrig = isHitsEqual(hit, this.origHit);
+
+               this.hit = hit;
+
+               this.trigger('hitOver', this.hit, isOrig, this.origHit);
+       },
+
+
+       // Called when the mouse has just moved out of a hit
+       handleHitOut: function() {
+               if (this.hit) {
+                       this.trigger('hitOut', this.hit);
+                       this.handleHitDone();
+                       this.hit = null;
+               }
+       },
+
+
+       // Called after a hitOut. Also called before a dragStop
+       handleHitDone: function() {
+               if (this.hit) {
+                       this.trigger('hitDone', this.hit);
+               }
+       },
+
+
+       // Called when the interaction ends, whether there was a real drag or not
+       handleInteractionEnd: function() {
+               DragListener.prototype.handleInteractionEnd.apply(this, arguments); // call the super-method
+
+               this.origHit = null;
+               this.hit = null;
+
+               this.component.hitsNotNeeded();
+       },
+
+
+       // Called when scrolling has stopped, whether through auto scroll, or the user scrolling
+       handleScrollEnd: function() {
+               DragListener.prototype.handleScrollEnd.apply(this, arguments); // call the super-method
+
+               // hits' absolute positions will be in new places after a user's scroll.
+               // HACK for recomputing.
+               if (this.isDragging) {
+                       this.component.releaseHits();
+                       this.component.prepareHits();
+               }
+       },
+
+
+       // Gets the hit underneath the coordinates for the given mouse event
+       queryHit: function(left, top) {
+
+               if (this.coordAdjust) {
+                       left += this.coordAdjust.left;
+                       top += this.coordAdjust.top;
                }
-               function resetElement() {
-                       // convert back to original slot-event
-                       if (allDay) {
-                               timeElement.css('display', ''); // show() was causing display=inline
-                               eventElement.draggable('option', 'grid', [colWidth, slotHeight]);
-                               allDay = false;
+
+               return this.component.queryHit(left, top);
+       }
+
+});
+
+
+// Returns `true` if the hits are identically equal. `false` otherwise. Must be from the same component.
+// Two null values will be considered equal, as two "out of the component" states are the same.
+function isHitsEqual(hit0, hit1) {
+
+       if (!hit0 && !hit1) {
+               return true;
+       }
+
+       if (hit0 && hit1) {
+               return hit0.component === hit1.component &&
+                       isHitPropsWithin(hit0, hit1) &&
+                       isHitPropsWithin(hit1, hit0); // ensures all props are identical
+       }
+
+       return false;
+}
+
+
+// Returns true if all of subHit's non-standard properties are within superHit
+function isHitPropsWithin(subHit, superHit) {
+       for (var propName in subHit) {
+               if (!/^(component|left|right|top|bottom)$/.test(propName)) {
+                       if (subHit[propName] !== superHit[propName]) {
+                               return false;
                        }
                }
        }
-       
-       
-       
-       /* Resizing
-       --------------------------------------------------------------------------------------*/
-       
-       
-       function resizableSlotEvent(event, eventElement, timeElement) {
-               var slotDelta, prevSlotDelta;
-               var slotHeight = getSlotHeight();
-               eventElement.resizable({
-                       handles: {
-                               s: 'div.ui-resizable-s'
-                       },
-                       grid: slotHeight,
-                       start: function(ev, ui) {
-                               slotDelta = prevSlotDelta = 0;
-                               hideEvents(event, eventElement);
-                               eventElement.css('z-index', 9);
-                               trigger('eventResizeStart', this, event, ev, ui);
+       return true;
+}
+
+;;
+
+/*
+Listens to document and window-level user-interaction events, like touch events and mouse events,
+and fires these events as-is to whoever is observing a GlobalEmitter.
+Best when used as a singleton via GlobalEmitter.get()
+
+Normalizes mouse/touch events. For examples:
+- ignores the the simulated mouse events that happen after a quick tap: mousemove+mousedown+mouseup+click
+- compensates for various buggy scenarios where a touchend does not fire
+*/
+
+FC.touchMouseIgnoreWait = 500;
+
+var GlobalEmitter = Class.extend(ListenerMixin, EmitterMixin, {
+
+       isTouching: false,
+       mouseIgnoreDepth: 0,
+       handleScrollProxy: null,
+
+
+       bind: function() {
+               var _this = this;
+
+               this.listenTo($(document), {
+                       touchstart: this.handleTouchStart,
+                       touchcancel: this.handleTouchCancel,
+                       touchend: this.handleTouchEnd,
+                       mousedown: this.handleMouseDown,
+                       mousemove: this.handleMouseMove,
+                       mouseup: this.handleMouseUp,
+                       click: this.handleClick,
+                       selectstart: this.handleSelectStart,
+                       contextmenu: this.handleContextMenu
+               });
+
+               // because we need to call preventDefault
+               // because https://www.chromestatus.com/features/5093566007214080
+               // TODO: investigate performance because this is a global handler
+               window.addEventListener(
+                       'touchmove',
+                       this.handleTouchMoveProxy = function(ev) {
+                               _this.handleTouchMove($.Event(ev));
                        },
-                       resize: function(ev, ui) {
-                               // don't rely on ui.size.height, doesn't take grid into account
-                               slotDelta = Math.round((Math.max(slotHeight, eventElement.height()) - ui.originalSize.height) / slotHeight);
-                               if (slotDelta != prevSlotDelta) {
-                                       timeElement.text(
-                                               formatDates(
-                                                       event.start,
-                                                       (!slotDelta && !event.end) ? null : // no change, so don't display time range
-                                                               addMinutes(eventEnd(event), opt('slotMinutes')*slotDelta),
-                                                       opt('timeFormat')
-                                               )
-                                       );
-                                       prevSlotDelta = slotDelta;
-                               }
+                       { passive: false } // allows preventDefault()
+               );
+
+               // attach a handler to get called when ANY scroll action happens on the page.
+               // this was impossible to do with normal on/off because 'scroll' doesn't bubble.
+               // http://stackoverflow.com/a/32954565/96342
+               window.addEventListener(
+                       'scroll',
+                       this.handleScrollProxy = function(ev) {
+                               _this.handleScroll($.Event(ev));
                        },
-                       stop: function(ev, ui) {
-                               trigger('eventResizeStop', this, event, ev, ui);
-                               if (slotDelta) {
-                                       eventResize(this, event, 0, opt('slotMinutes')*slotDelta, ev, ui);
-                               }else{
-                                       eventElement.css('z-index', 8);
-                                       showEvents(event, eventElement);
-                                       // BUG: if event was really short, need to put title back in span
-                               }
-                       }
-               });
-       }
-       
+                       true // useCapture
+               );
+       },
+
+       unbind: function() {
+               this.stopListeningTo($(document));
+
+               window.removeEventListener(
+                       'touchmove',
+                       this.handleTouchMoveProxy
+               );
+
+               window.removeEventListener(
+                       'scroll',
+                       this.handleScrollProxy,
+                       true // useCapture
+               );
+       },
+
+
+       // Touch Handlers
+       // -----------------------------------------------------------------------------------------------------------------
+
+       handleTouchStart: function(ev) {
+
+               // if a previous touch interaction never ended with a touchend, then implicitly end it,
+               // but since a new touch interaction is about to begin, don't start the mouse ignore period.
+               this.stopTouch(ev, true); // skipMouseIgnore=true
+
+               this.isTouching = true;
+               this.trigger('touchstart', ev);
+       },
+
+       handleTouchMove: function(ev) {
+               if (this.isTouching) {
+                       this.trigger('touchmove', ev);
+               }
+       },
+
+       handleTouchCancel: function(ev) {
+               if (this.isTouching) {
+                       this.trigger('touchcancel', ev);
+
+                       // Have touchcancel fire an artificial touchend. That way, handlers won't need to listen to both.
+                       // If touchend fires later, it won't have any effect b/c isTouching will be false.
+                       this.stopTouch(ev);
+               }
+       },
+
+       handleTouchEnd: function(ev) {
+               this.stopTouch(ev);
+       },
+
+
+       // Mouse Handlers
+       // -----------------------------------------------------------------------------------------------------------------
+
+       handleMouseDown: function(ev) {
+               if (!this.shouldIgnoreMouse()) {
+                       this.trigger('mousedown', ev);
+               }
+       },
+
+       handleMouseMove: function(ev) {
+               if (!this.shouldIgnoreMouse()) {
+                       this.trigger('mousemove', ev);
+               }
+       },
+
+       handleMouseUp: function(ev) {
+               if (!this.shouldIgnoreMouse()) {
+                       this.trigger('mouseup', ev);
+               }
+       },
+
+       handleClick: function(ev) {
+               if (!this.shouldIgnoreMouse()) {
+                       this.trigger('click', ev);
+               }
+       },
+
+
+       // Misc Handlers
+       // -----------------------------------------------------------------------------------------------------------------
+
+       handleSelectStart: function(ev) {
+               this.trigger('selectstart', ev);
+       },
+
+       handleContextMenu: function(ev) {
+               this.trigger('contextmenu', ev);
+       },
+
+       handleScroll: function(ev) {
+               this.trigger('scroll', ev);
+       },
+
+
+       // Utils
+       // -----------------------------------------------------------------------------------------------------------------
+
+       stopTouch: function(ev, skipMouseIgnore) {
+               if (this.isTouching) {
+                       this.isTouching = false;
+                       this.trigger('touchend', ev);
+
+                       if (!skipMouseIgnore) {
+                               this.startTouchMouseIgnore();
+                       }
+               }
+       },
+
+       startTouchMouseIgnore: function() {
+               var _this = this;
+               var wait = FC.touchMouseIgnoreWait;
+
+               if (wait) {
+                       this.mouseIgnoreDepth++;
+                       setTimeout(function() {
+                               _this.mouseIgnoreDepth--;
+                       }, wait);
+               }
+       },
+
+       shouldIgnoreMouse: function() {
+               return this.isTouching || Boolean(this.mouseIgnoreDepth);
+       }
+
+});
+
+
+// Singleton
+// ---------------------------------------------------------------------------------------------------------------------
+
+(function() {
+       var globalEmitter = null;
+       var neededCount = 0;
+
+
+       // gets the singleton
+       GlobalEmitter.get = function() {
+
+               if (!globalEmitter) {
+                       globalEmitter = new GlobalEmitter();
+                       globalEmitter.bind();
+               }
+
+               return globalEmitter;
+       };
+
+
+       // called when an object knows it will need a GlobalEmitter in the near future.
+       GlobalEmitter.needed = function() {
+               GlobalEmitter.get(); // ensures globalEmitter
+               neededCount++;
+       };
+
+
+       // called when the object that originally called needed() doesn't need a GlobalEmitter anymore.
+       GlobalEmitter.unneeded = function() {
+               neededCount--;
+
+               if (!neededCount) { // nobody else needs it
+                       globalEmitter.unbind();
+                       globalEmitter = null;
+               }
+       };
+
+})();
+
+;;
+
+/* Creates a clone of an element and lets it track the mouse as it moves
+----------------------------------------------------------------------------------------------------------------------*/
+
+var MouseFollower = Class.extend(ListenerMixin, {
+
+       options: null,
+
+       sourceEl: null, // the element that will be cloned and made to look like it is dragging
+       el: null, // the clone of `sourceEl` that will track the mouse
+       parentEl: null, // the element that `el` (the clone) will be attached to
+
+       // the initial position of el, relative to the offset parent. made to match the initial offset of sourceEl
+       top0: null,
+       left0: null,
+
+       // the absolute coordinates of the initiating touch/mouse action
+       y0: null,
+       x0: null,
+
+       // the number of pixels the mouse has moved from its initial position
+       topDelta: null,
+       leftDelta: null,
+
+       isFollowing: false,
+       isHidden: false,
+       isAnimating: false, // doing the revert animation?
+
+       constructor: function(sourceEl, options) {
+               this.options = options = options || {};
+               this.sourceEl = sourceEl;
+               this.parentEl = options.parentEl ? $(options.parentEl) : sourceEl.parent(); // default to sourceEl's parent
+       },
+
+
+       // Causes the element to start following the mouse
+       start: function(ev) {
+               if (!this.isFollowing) {
+                       this.isFollowing = true;
+
+                       this.y0 = getEvY(ev);
+                       this.x0 = getEvX(ev);
+                       this.topDelta = 0;
+                       this.leftDelta = 0;
+
+                       if (!this.isHidden) {
+                               this.updatePosition();
+                       }
+
+                       if (getEvIsTouch(ev)) {
+                               this.listenTo($(document), 'touchmove', this.handleMove);
+                       }
+                       else {
+                               this.listenTo($(document), 'mousemove', this.handleMove);
+                       }
+               }
+       },
+
+
+       // Causes the element to stop following the mouse. If shouldRevert is true, will animate back to original position.
+       // `callback` gets invoked when the animation is complete. If no animation, it is invoked immediately.
+       stop: function(shouldRevert, callback) {
+               var _this = this;
+               var revertDuration = this.options.revertDuration;
+
+               function complete() { // might be called by .animate(), which might change `this` context
+                       _this.isAnimating = false;
+                       _this.removeElement();
+
+                       _this.top0 = _this.left0 = null; // reset state for future updatePosition calls
+
+                       if (callback) {
+                               callback();
+                       }
+               }
+
+               if (this.isFollowing && !this.isAnimating) { // disallow more than one stop animation at a time
+                       this.isFollowing = false;
+
+                       this.stopListeningTo($(document));
+
+                       if (shouldRevert && revertDuration && !this.isHidden) { // do a revert animation?
+                               this.isAnimating = true;
+                               this.el.animate({
+                                       top: this.top0,
+                                       left: this.left0
+                               }, {
+                                       duration: revertDuration,
+                                       complete: complete
+                               });
+                       }
+                       else {
+                               complete();
+                       }
+               }
+       },
+
+
+       // Gets the tracking element. Create it if necessary
+       getEl: function() {
+               var el = this.el;
+
+               if (!el) {
+                       el = this.el = this.sourceEl.clone()
+                               .addClass(this.options.additionalClass || '')
+                               .css({
+                                       position: 'absolute',
+                                       visibility: '', // in case original element was hidden (commonly through hideEvents())
+                                       display: this.isHidden ? 'none' : '', // for when initially hidden
+                                       margin: 0,
+                                       right: 'auto', // erase and set width instead
+                                       bottom: 'auto', // erase and set height instead
+                                       width: this.sourceEl.width(), // explicit height in case there was a 'right' value
+                                       height: this.sourceEl.height(), // explicit width in case there was a 'bottom' value
+                                       opacity: this.options.opacity || '',
+                                       zIndex: this.options.zIndex
+                               });
+
+                       // we don't want long taps or any mouse interaction causing selection/menus.
+                       // would use preventSelection(), but that prevents selectstart, causing problems.
+                       el.addClass('fc-unselectable');
+
+                       el.appendTo(this.parentEl);
+               }
+
+               return el;
+       },
+
+
+       // Removes the tracking element if it has already been created
+       removeElement: function() {
+               if (this.el) {
+                       this.el.remove();
+                       this.el = null;
+               }
+       },
+
+
+       // Update the CSS position of the tracking element
+       updatePosition: function() {
+               var sourceOffset;
+               var origin;
+
+               this.getEl(); // ensure this.el
+
+               // make sure origin info was computed
+               if (this.top0 === null) {
+                       sourceOffset = this.sourceEl.offset();
+                       origin = this.el.offsetParent().offset();
+                       this.top0 = sourceOffset.top - origin.top;
+                       this.left0 = sourceOffset.left - origin.left;
+               }
+
+               this.el.css({
+                       top: this.top0 + this.topDelta,
+                       left: this.left0 + this.leftDelta
+               });
+       },
+
+
+       // Gets called when the user moves the mouse
+       handleMove: function(ev) {
+               this.topDelta = getEvY(ev) - this.y0;
+               this.leftDelta = getEvX(ev) - this.x0;
+
+               if (!this.isHidden) {
+                       this.updatePosition();
+               }
+       },
+
+
+       // Temporarily makes the tracking element invisible. Can be called before following starts
+       hide: function() {
+               if (!this.isHidden) {
+                       this.isHidden = true;
+                       if (this.el) {
+                               this.el.hide();
+                       }
+               }
+       },
+
+
+       // Show the tracking element after it has been temporarily hidden
+       show: function() {
+               if (this.isHidden) {
+                       this.isHidden = false;
+                       this.updatePosition();
+                       this.getEl().show();
+               }
+       }
+
+});
+
+;;
+
+/* An abstract class comprised of a "grid" of areas that each represent a specific datetime
+----------------------------------------------------------------------------------------------------------------------*/
+
+var Grid = FC.Grid = Class.extend(ListenerMixin, {
+
+       // self-config, overridable by subclasses
+       hasDayInteractions: true, // can user click/select ranges of time?
+
+       view: null, // a View object
+       isRTL: null, // shortcut to the view's isRTL option
+
+       start: null,
+       end: null,
+
+       el: null, // the containing element
+       elsByFill: null, // a hash of jQuery element sets used for rendering each fill. Keyed by fill name.
+
+       // derived from options
+       eventTimeFormat: null,
+       displayEventTime: null,
+       displayEventEnd: null,
+
+       minResizeDuration: null, // TODO: hack. set by subclasses. minumum event resize duration
+
+       // if defined, holds the unit identified (ex: "year" or "month") that determines the level of granularity
+       // of the date areas. if not defined, assumes to be day and time granularity.
+       // TODO: port isTimeScale into same system?
+       largeUnit: null,
+
+       dayClickListener: null,
+       daySelectListener: null,
+       segDragListener: null,
+       segResizeListener: null,
+       externalDragListener: null,
+
+
+       constructor: function(view) {
+               this.view = view;
+               this.isRTL = view.opt('isRTL');
+               this.elsByFill = {};
+
+               this.dayClickListener = this.buildDayClickListener();
+               this.daySelectListener = this.buildDaySelectListener();
+       },
+
+
+       /* Options
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Generates the format string used for event time text, if not explicitly defined by 'timeFormat'
+       computeEventTimeFormat: function() {
+               return this.view.opt('smallTimeFormat');
+       },
+
+
+       // Determines whether events should have their end times displayed, if not explicitly defined by 'displayEventTime'.
+       // Only applies to non-all-day events.
+       computeDisplayEventTime: function() {
+               return true;
+       },
+
+
+       // Determines whether events should have their end times displayed, if not explicitly defined by 'displayEventEnd'
+       computeDisplayEventEnd: function() {
+               return true;
+       },
+
+
+       /* Dates
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Tells the grid about what period of time to display.
+       // Any date-related internal data should be generated.
+       setRange: function(range) {
+               this.start = range.start.clone();
+               this.end = range.end.clone();
+
+               this.rangeUpdated();
+               this.processRangeOptions();
+       },
+
+
+       // Called when internal variables that rely on the range should be updated
+       rangeUpdated: function() {
+       },
+
+
+       // Updates values that rely on options and also relate to range
+       processRangeOptions: function() {
+               var view = this.view;
+               var displayEventTime;
+               var displayEventEnd;
+
+               this.eventTimeFormat =
+                       view.opt('eventTimeFormat') ||
+                       view.opt('timeFormat') || // deprecated
+                       this.computeEventTimeFormat();
+
+               displayEventTime = view.opt('displayEventTime');
+               if (displayEventTime == null) {
+                       displayEventTime = this.computeDisplayEventTime(); // might be based off of range
+               }
+
+               displayEventEnd = view.opt('displayEventEnd');
+               if (displayEventEnd == null) {
+                       displayEventEnd = this.computeDisplayEventEnd(); // might be based off of range
+               }
+
+               this.displayEventTime = displayEventTime;
+               this.displayEventEnd = displayEventEnd;
+       },
+
+
+       // Converts a span (has unzoned start/end and any other grid-specific location information)
+       // into an array of segments (pieces of events whose format is decided by the grid).
+       spanToSegs: function(span) {
+               // subclasses must implement
+       },
+
+
+       // Diffs the two dates, returning a duration, based on granularity of the grid
+       // TODO: port isTimeScale into this system?
+       diffDates: function(a, b) {
+               if (this.largeUnit) {
+                       return diffByUnit(a, b, this.largeUnit);
+               }
+               else {
+                       return diffDayTime(a, b);
+               }
+       },
+
+
+       /* Hit Area
+       ------------------------------------------------------------------------------------------------------------------*/
+
+       hitsNeededDepth: 0, // necessary because multiple callers might need the same hits
+
+       hitsNeeded: function() {
+               if (!(this.hitsNeededDepth++)) {
+                       this.prepareHits();
+               }
+       },
+
+       hitsNotNeeded: function() {
+               if (this.hitsNeededDepth && !(--this.hitsNeededDepth)) {
+                       this.releaseHits();
+               }
+       },
+
+
+       // Called before one or more queryHit calls might happen. Should prepare any cached coordinates for queryHit
+       prepareHits: function() {
+       },
+
+
+       // Called when queryHit calls have subsided. Good place to clear any coordinate caches.
+       releaseHits: function() {
+       },
+
+
+       // Given coordinates from the topleft of the document, return data about the date-related area underneath.
+       // Can return an object with arbitrary properties (although top/right/left/bottom are encouraged).
+       // Must have a `grid` property, a reference to this current grid. TODO: avoid this
+       // The returned object will be processed by getHitSpan and getHitEl.
+       queryHit: function(leftOffset, topOffset) {
+       },
+
+
+       // Given position-level information about a date-related area within the grid,
+       // should return an object with at least a start/end date. Can provide other information as well.
+       getHitSpan: function(hit) {
+       },
+
+
+       // Given position-level information about a date-related area within the grid,
+       // should return a jQuery element that best represents it. passed to dayClick callback.
+       getHitEl: function(hit) {
+       },
+
+
+       /* Rendering
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Sets the container element that the grid should render inside of.
+       // Does other DOM-related initializations.
+       setElement: function(el) {
+               this.el = el;
+
+               if (this.hasDayInteractions) {
+                       preventSelection(el);
+
+                       this.bindDayHandler('touchstart', this.dayTouchStart);
+                       this.bindDayHandler('mousedown', this.dayMousedown);
+               }
+
+               // attach event-element-related handlers. in Grid.events
+               // same garbage collection note as above.
+               this.bindSegHandlers();
+
+               this.bindGlobalHandlers();
+       },
+
+
+       bindDayHandler: function(name, handler) {
+               var _this = this;
+
+               // attach a handler to the grid's root element.
+               // jQuery will take care of unregistering them when removeElement gets called.
+               this.el.on(name, function(ev) {
+                       if (
+                               !$(ev.target).is(
+                                       _this.segSelector + ',' + // directly on an event element
+                                       _this.segSelector + ' *,' + // within an event element
+                                       '.fc-more,' + // a "more.." link
+                                       'a[data-goto]' // a clickable nav link
+                               )
+                       ) {
+                               return handler.call(_this, ev);
+                       }
+               });
+       },
+
+
+       // Removes the grid's container element from the DOM. Undoes any other DOM-related attachments.
+       // DOES NOT remove any content beforehand (doesn't clear events or call unrenderDates), unlike View
+       removeElement: function() {
+               this.unbindGlobalHandlers();
+               this.clearDragListeners();
+
+               this.el.remove();
+
+               // NOTE: we don't null-out this.el for the same reasons we don't do it within View::removeElement
+       },
+
+
+       // Renders the basic structure of grid view before any content is rendered
+       renderSkeleton: function() {
+               // subclasses should implement
+       },
+
+
+       // Renders the grid's date-related content (like areas that represent days/times).
+       // Assumes setRange has already been called and the skeleton has already been rendered.
+       renderDates: function() {
+               // subclasses should implement
+       },
+
+
+       // Unrenders the grid's date-related content
+       unrenderDates: function() {
+               // subclasses should implement
+       },
+
+
+       /* Handlers
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Binds DOM handlers to elements that reside outside the grid, such as the document
+       bindGlobalHandlers: function() {
+               this.listenTo($(document), {
+                       dragstart: this.externalDragStart, // jqui
+                       sortstart: this.externalDragStart // jqui
+               });
+       },
+
+
+       // Unbinds DOM handlers from elements that reside outside the grid
+       unbindGlobalHandlers: function() {
+               this.stopListeningTo($(document));
+       },
+
+
+       // Process a mousedown on an element that represents a day. For day clicking and selecting.
+       dayMousedown: function(ev) {
+               var view = this.view;
+
+               // prevent a user's clickaway for unselecting a range or an event from
+               // causing a dayClick or starting an immediate new selection.
+               if (view.isSelected || view.selectedEvent) {
+                       return;
+               }
+
+               this.dayClickListener.startInteraction(ev);
+
+               if (view.opt('selectable')) {
+                       this.daySelectListener.startInteraction(ev, {
+                               distance: view.opt('selectMinDistance')
+                       });
+               }
+       },
+
+
+       dayTouchStart: function(ev) {
+               var view = this.view;
+               var selectLongPressDelay;
+
+               // prevent a user's clickaway for unselecting a range or an event from
+               // causing a dayClick or starting an immediate new selection.
+               if (view.isSelected || view.selectedEvent) {
+                       return;
+               }
+
+               selectLongPressDelay = view.opt('selectLongPressDelay');
+               if (selectLongPressDelay == null) {
+                       selectLongPressDelay = view.opt('longPressDelay'); // fallback
+               }
+
+               this.dayClickListener.startInteraction(ev);
+
+               if (view.opt('selectable')) {
+                       this.daySelectListener.startInteraction(ev, {
+                               delay: selectLongPressDelay
+                       });
+               }
+       },
+
+
+       // Creates a listener that tracks the user's drag across day elements, for day clicking.
+       buildDayClickListener: function() {
+               var _this = this;
+               var view = this.view;
+               var dayClickHit; // null if invalid dayClick
+
+               var dragListener = new HitDragListener(this, {
+                       scroll: view.opt('dragScroll'),
+                       interactionStart: function() {
+                               dayClickHit = dragListener.origHit;
+                       },
+                       hitOver: function(hit, isOrig, origHit) {
+                               // if user dragged to another cell at any point, it can no longer be a dayClick
+                               if (!isOrig) {
+                                       dayClickHit = null;
+                               }
+                       },
+                       hitOut: function() { // called before mouse moves to a different hit OR moved out of all hits
+                               dayClickHit = null;
+                       },
+                       interactionEnd: function(ev, isCancelled) {
+                               if (!isCancelled && dayClickHit) {
+                                       view.triggerDayClick(
+                                               _this.getHitSpan(dayClickHit),
+                                               _this.getHitEl(dayClickHit),
+                                               ev
+                                       );
+                               }
+                       }
+               });
+
+               // because dayClickListener won't be called with any time delay, "dragging" will begin immediately,
+               // which will kill any touchmoving/scrolling. Prevent this.
+               dragListener.shouldCancelTouchScroll = false;
+
+               dragListener.scrollAlwaysKills = true;
+
+               return dragListener;
+       },
+
+
+       // Creates a listener that tracks the user's drag across day elements, for day selecting.
+       buildDaySelectListener: function() {
+               var _this = this;
+               var view = this.view;
+               var selectionSpan; // null if invalid selection
+
+               var dragListener = new HitDragListener(this, {
+                       scroll: view.opt('dragScroll'),
+                       interactionStart: function() {
+                               selectionSpan = null;
+                       },
+                       dragStart: function() {
+                               view.unselect(); // since we could be rendering a new selection, we want to clear any old one
+                       },
+                       hitOver: function(hit, isOrig, origHit) {
+                               if (origHit) { // click needs to have started on a hit
+
+                                       selectionSpan = _this.computeSelection(
+                                               _this.getHitSpan(origHit),
+                                               _this.getHitSpan(hit)
+                                       );
+
+                                       if (selectionSpan) {
+                                               _this.renderSelection(selectionSpan);
+                                       }
+                                       else if (selectionSpan === false) {
+                                               disableCursor();
+                                       }
+                               }
+                       },
+                       hitOut: function() { // called before mouse moves to a different hit OR moved out of all hits
+                               selectionSpan = null;
+                               _this.unrenderSelection();
+                       },
+                       hitDone: function() { // called after a hitOut OR before a dragEnd
+                               enableCursor();
+                       },
+                       interactionEnd: function(ev, isCancelled) {
+                               if (!isCancelled && selectionSpan) {
+                                       // the selection will already have been rendered. just report it
+                                       view.reportSelection(selectionSpan, ev);
+                               }
+                       }
+               });
+
+               return dragListener;
+       },
+
+
+       // Kills all in-progress dragging.
+       // Useful for when public API methods that result in re-rendering are invoked during a drag.
+       // Also useful for when touch devices misbehave and don't fire their touchend.
+       clearDragListeners: function() {
+               this.dayClickListener.endInteraction();
+               this.daySelectListener.endInteraction();
+
+               if (this.segDragListener) {
+                       this.segDragListener.endInteraction(); // will clear this.segDragListener
+               }
+               if (this.segResizeListener) {
+                       this.segResizeListener.endInteraction(); // will clear this.segResizeListener
+               }
+               if (this.externalDragListener) {
+                       this.externalDragListener.endInteraction(); // will clear this.externalDragListener
+               }
+       },
+
+
+       /* Event Helper
+       ------------------------------------------------------------------------------------------------------------------*/
+       // TODO: should probably move this to Grid.events, like we did event dragging / resizing
+
+
+       // Renders a mock event at the given event location, which contains zoned start/end properties.
+       // Returns all mock event elements.
+       renderEventLocationHelper: function(eventLocation, sourceSeg) {
+               var fakeEvent = this.fabricateHelperEvent(eventLocation, sourceSeg);
+
+               return this.renderHelper(fakeEvent, sourceSeg); // do the actual rendering
+       },
+
+
+       // Builds a fake event given zoned event date properties and a segment is should be inspired from.
+       // The range's end can be null, in which case the mock event that is rendered will have a null end time.
+       // `sourceSeg` is the internal segment object involved in the drag. If null, something external is dragging.
+       fabricateHelperEvent: function(eventLocation, sourceSeg) {
+               var fakeEvent = sourceSeg ? createObject(sourceSeg.event) : {}; // mask the original event object if possible
+
+               fakeEvent.start = eventLocation.start.clone();
+               fakeEvent.end = eventLocation.end ? eventLocation.end.clone() : null;
+               fakeEvent.allDay = null; // force it to be freshly computed by normalizeEventDates
+               this.view.calendar.normalizeEventDates(fakeEvent);
+
+               // this extra className will be useful for differentiating real events from mock events in CSS
+               fakeEvent.className = (fakeEvent.className || []).concat('fc-helper');
+
+               // if something external is being dragged in, don't render a resizer
+               if (!sourceSeg) {
+                       fakeEvent.editable = false;
+               }
+
+               return fakeEvent;
+       },
+
+
+       // Renders a mock event. Given zoned event date properties.
+       // Must return all mock event elements.
+       renderHelper: function(eventLocation, sourceSeg) {
+               // subclasses must implement
+       },
+
+
+       // Unrenders a mock event
+       unrenderHelper: function() {
+               // subclasses must implement
+       },
+
+
+       /* Selection
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a visual indication of a selection. Will highlight by default but can be overridden by subclasses.
+       // Given a span (unzoned start/end and other misc data)
+       renderSelection: function(span) {
+               this.renderHighlight(span);
+       },
+
+
+       // Unrenders any visual indications of a selection. Will unrender a highlight by default.
+       unrenderSelection: function() {
+               this.unrenderHighlight();
+       },
+
+
+       // Given the first and last date-spans of a selection, returns another date-span object.
+       // Subclasses can override and provide additional data in the span object. Will be passed to renderSelection().
+       // Will return false if the selection is invalid and this should be indicated to the user.
+       // Will return null/undefined if a selection invalid but no error should be reported.
+       computeSelection: function(span0, span1) {
+               var span = this.computeSelectionSpan(span0, span1);
+
+               if (span && !this.view.calendar.isSelectionSpanAllowed(span)) {
+                       return false;
+               }
+
+               return span;
+       },
+
+
+       // Given two spans, must return the combination of the two.
+       // TODO: do this separation of concerns (combining VS validation) for event dnd/resize too.
+       computeSelectionSpan: function(span0, span1) {
+               var dates = [ span0.start, span0.end, span1.start, span1.end ];
+
+               dates.sort(compareNumbers); // sorts chronologically. works with Moments
+
+               return { start: dates[0].clone(), end: dates[3].clone() };
+       },
+
+
+       /* Highlight
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders an emphasis on the given date range. Given a span (unzoned start/end and other misc data)
+       renderHighlight: function(span) {
+               this.renderFill('highlight', this.spanToSegs(span));
+       },
+
+
+       // Unrenders the emphasis on a date range
+       unrenderHighlight: function() {
+               this.unrenderFill('highlight');
+       },
+
+
+       // Generates an array of classNames for rendering the highlight. Used by the fill system.
+       highlightSegClasses: function() {
+               return [ 'fc-highlight' ];
+       },
+
+
+       /* Business Hours
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderBusinessHours: function() {
+       },
+
+
+       unrenderBusinessHours: function() {
+       },
+
+
+       /* Now Indicator
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       getNowIndicatorUnit: function() {
+       },
+
+
+       renderNowIndicator: function(date) {
+       },
+
+
+       unrenderNowIndicator: function() {
+       },
+
+
+       /* Fill System (highlight, background events, business hours)
+       --------------------------------------------------------------------------------------------------------------------
+       TODO: remove this system. like we did in TimeGrid
+       */
+
+
+       // Renders a set of rectangles over the given segments of time.
+       // MUST RETURN a subset of segs, the segs that were actually rendered.
+       // Responsible for populating this.elsByFill. TODO: better API for expressing this requirement
+       renderFill: function(type, segs) {
+               // subclasses must implement
+       },
+
+
+       // Unrenders a specific type of fill that is currently rendered on the grid
+       unrenderFill: function(type) {
+               var el = this.elsByFill[type];
+
+               if (el) {
+                       el.remove();
+                       delete this.elsByFill[type];
+               }
+       },
+
+
+       // Renders and assigns an `el` property for each fill segment. Generic enough to work with different types.
+       // Only returns segments that successfully rendered.
+       // To be harnessed by renderFill (implemented by subclasses).
+       // Analagous to renderFgSegEls.
+       renderFillSegEls: function(type, segs) {
+               var _this = this;
+               var segElMethod = this[type + 'SegEl'];
+               var html = '';
+               var renderedSegs = [];
+               var i;
+
+               if (segs.length) {
+
+                       // build a large concatenation of segment HTML
+                       for (i = 0; i < segs.length; i++) {
+                               html += this.fillSegHtml(type, segs[i]);
+                       }
+
+                       // Grab individual elements from the combined HTML string. Use each as the default rendering.
+                       // Then, compute the 'el' for each segment.
+                       $(html).each(function(i, node) {
+                               var seg = segs[i];
+                               var el = $(node);
+
+                               // allow custom filter methods per-type
+                               if (segElMethod) {
+                                       el = segElMethod.call(_this, seg, el);
+                               }
+
+                               if (el) { // custom filters did not cancel the render
+                                       el = $(el); // allow custom filter to return raw DOM node
+
+                                       // correct element type? (would be bad if a non-TD were inserted into a table for example)
+                                       if (el.is(_this.fillSegTag)) {
+                                               seg.el = el;
+                                               renderedSegs.push(seg);
+                                       }
+                               }
+                       });
+               }
+
+               return renderedSegs;
+       },
+
+
+       fillSegTag: 'div', // subclasses can override
+
+
+       // Builds the HTML needed for one fill segment. Generic enough to work with different types.
+       fillSegHtml: function(type, seg) {
+
+               // custom hooks per-type
+               var classesMethod = this[type + 'SegClasses'];
+               var cssMethod = this[type + 'SegCss'];
+
+               var classes = classesMethod ? classesMethod.call(this, seg) : [];
+               var css = cssToStr(cssMethod ? cssMethod.call(this, seg) : {});
+
+               return '<' + this.fillSegTag +
+                       (classes.length ? ' class="' + classes.join(' ') + '"' : '') +
+                       (css ? ' style="' + css + '"' : '') +
+                       ' />';
+       },
+
+
+
+       /* Generic rendering utilities for subclasses
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Computes HTML classNames for a single-day element
+       getDayClasses: function(date, noThemeHighlight) {
+               var view = this.view;
+               var today = view.calendar.getNow();
+               var classes = [ 'fc-' + dayIDs[date.day()] ];
+
+               if (
+                       view.intervalDuration.as('months') == 1 &&
+                       date.month() != view.intervalStart.month()
+               ) {
+                       classes.push('fc-other-month');
+               }
+
+               if (date.isSame(today, 'day')) {
+                       classes.push('fc-today');
+
+                       if (noThemeHighlight !== true) {
+                               classes.push(view.highlightStateClass);
+                       }
+               }
+               else if (date < today) {
+                       classes.push('fc-past');
+               }
+               else {
+                       classes.push('fc-future');
+               }
+
+               return classes;
+       }
+
+});
+
+;;
+
+/* Event-rendering and event-interaction methods for the abstract Grid class
+----------------------------------------------------------------------------------------------------------------------*/
+
+Grid.mixin({
+
+       // self-config, overridable by subclasses
+       segSelector: '.fc-event-container > *', // what constitutes an event element?
+
+       mousedOverSeg: null, // the segment object the user's mouse is over. null if over nothing
+       isDraggingSeg: false, // is a segment being dragged? boolean
+       isResizingSeg: false, // is a segment being resized? boolean
+       isDraggingExternal: false, // jqui-dragging an external element? boolean
+       segs: null, // the *event* segments currently rendered in the grid. TODO: rename to `eventSegs`
+
+
+       // Renders the given events onto the grid
+       renderEvents: function(events) {
+               var bgEvents = [];
+               var fgEvents = [];
+               var i;
+
+               for (i = 0; i < events.length; i++) {
+                       (isBgEvent(events[i]) ? bgEvents : fgEvents).push(events[i]);
+               }
+
+               this.segs = [].concat( // record all segs
+                       this.renderBgEvents(bgEvents),
+                       this.renderFgEvents(fgEvents)
+               );
+       },
+
+
+       renderBgEvents: function(events) {
+               var segs = this.eventsToSegs(events);
+
+               // renderBgSegs might return a subset of segs, segs that were actually rendered
+               return this.renderBgSegs(segs) || segs;
+       },
+
+
+       renderFgEvents: function(events) {
+               var segs = this.eventsToSegs(events);
+
+               // renderFgSegs might return a subset of segs, segs that were actually rendered
+               return this.renderFgSegs(segs) || segs;
+       },
+
+
+       // Unrenders all events currently rendered on the grid
+       unrenderEvents: function() {
+               this.handleSegMouseout(); // trigger an eventMouseout if user's mouse is over an event
+               this.clearDragListeners();
+
+               this.unrenderFgSegs();
+               this.unrenderBgSegs();
+
+               this.segs = null;
+       },
+
+
+       // Retrieves all rendered segment objects currently rendered on the grid
+       getEventSegs: function() {
+               return this.segs || [];
+       },
+
+
+       /* Foreground Segment Rendering
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders foreground event segments onto the grid. May return a subset of segs that were rendered.
+       renderFgSegs: function(segs) {
+               // subclasses must implement
+       },
+
+
+       // Unrenders all currently rendered foreground segments
+       unrenderFgSegs: function() {
+               // subclasses must implement
+       },
+
+
+       // Renders and assigns an `el` property for each foreground event segment.
+       // Only returns segments that successfully rendered.
+       // A utility that subclasses may use.
+       renderFgSegEls: function(segs, disableResizing) {
+               var view = this.view;
+               var html = '';
+               var renderedSegs = [];
+               var i;
+
+               if (segs.length) { // don't build an empty html string
+
+                       // build a large concatenation of event segment HTML
+                       for (i = 0; i < segs.length; i++) {
+                               html += this.fgSegHtml(segs[i], disableResizing);
+                       }
+
+                       // Grab individual elements from the combined HTML string. Use each as the default rendering.
+                       // Then, compute the 'el' for each segment. An el might be null if the eventRender callback returned false.
+                       $(html).each(function(i, node) {
+                               var seg = segs[i];
+                               var el = view.resolveEventEl(seg.event, $(node));
+
+                               if (el) {
+                                       el.data('fc-seg', seg); // used by handlers
+                                       seg.el = el;
+                                       renderedSegs.push(seg);
+                               }
+                       });
+               }
+
+               return renderedSegs;
+       },
+
+
+       // Generates the HTML for the default rendering of a foreground event segment. Used by renderFgSegEls()
+       fgSegHtml: function(seg, disableResizing) {
+               // subclasses should implement
+       },
+
+
+       /* Background Segment Rendering
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders the given background event segments onto the grid.
+       // Returns a subset of the segs that were actually rendered.
+       renderBgSegs: function(segs) {
+               return this.renderFill('bgEvent', segs);
+       },
+
+
+       // Unrenders all the currently rendered background event segments
+       unrenderBgSegs: function() {
+               this.unrenderFill('bgEvent');
+       },
+
+
+       // Renders a background event element, given the default rendering. Called by the fill system.
+       bgEventSegEl: function(seg, el) {
+               return this.view.resolveEventEl(seg.event, el); // will filter through eventRender
+       },
+
+
+       // Generates an array of classNames to be used for the default rendering of a background event.
+       // Called by fillSegHtml.
+       bgEventSegClasses: function(seg) {
+               var event = seg.event;
+               var source = event.source || {};
+
+               return [ 'fc-bgevent' ].concat(
+                       event.className,
+                       source.className || []
+               );
+       },
+
+
+       // Generates a semicolon-separated CSS string to be used for the default rendering of a background event.
+       // Called by fillSegHtml.
+       bgEventSegCss: function(seg) {
+               return {
+                       'background-color': this.getSegSkinCss(seg)['background-color']
+               };
+       },
+
+
+       // Generates an array of classNames to be used for the rendering business hours overlay. Called by the fill system.
+       // Called by fillSegHtml.
+       businessHoursSegClasses: function(seg) {
+               return [ 'fc-nonbusiness', 'fc-bgevent' ];
+       },
+
+
+       /* Business Hours
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Compute business hour segs for the grid's current date range.
+       // Caller must ask if whole-day business hours are needed.
+       // If no `businessHours` configuration value is specified, assumes the calendar default.
+       buildBusinessHourSegs: function(wholeDay, businessHours) {
+               return this.eventsToSegs(
+                       this.buildBusinessHourEvents(wholeDay, businessHours)
+               );
+       },
+
+
+       // Compute business hour *events* for the grid's current date range.
+       // Caller must ask if whole-day business hours are needed.
+       // If no `businessHours` configuration value is specified, assumes the calendar default.
+       buildBusinessHourEvents: function(wholeDay, businessHours) {
+               var calendar = this.view.calendar;
+               var events;
+
+               if (businessHours == null) {
+                       // fallback
+                       // access from calendawr. don't access from view. doesn't update with dynamic options.
+                       businessHours = calendar.options.businessHours;
+               }
+
+               events = calendar.computeBusinessHourEvents(wholeDay, businessHours);
+
+               // HACK. Eventually refactor business hours "events" system.
+               // If no events are given, but businessHours is activated, this means the entire visible range should be
+               // marked as *not* business-hours, via inverse-background rendering.
+               if (!events.length && businessHours) {
+                       events = [
+                               $.extend({}, BUSINESS_HOUR_EVENT_DEFAULTS, {
+                                       start: this.view.end, // guaranteed out-of-range
+                                       end: this.view.end,   // "
+                                       dow: null
+                               })
+                       ];
+               }
+
+               return events;
+       },
+
+
+       /* Handlers
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Attaches event-element-related handlers for *all* rendered event segments of the view.
+       bindSegHandlers: function() {
+               this.bindSegHandlersToEl(this.el);
+       },
+
+
+       // Attaches event-element-related handlers to an arbitrary container element. leverages bubbling.
+       bindSegHandlersToEl: function(el) {
+               this.bindSegHandlerToEl(el, 'touchstart', this.handleSegTouchStart);
+               this.bindSegHandlerToEl(el, 'mouseenter', this.handleSegMouseover);
+               this.bindSegHandlerToEl(el, 'mouseleave', this.handleSegMouseout);
+               this.bindSegHandlerToEl(el, 'mousedown', this.handleSegMousedown);
+               this.bindSegHandlerToEl(el, 'click', this.handleSegClick);
+       },
+
+
+       // Executes a handler for any a user-interaction on a segment.
+       // Handler gets called with (seg, ev), and with the `this` context of the Grid
+       bindSegHandlerToEl: function(el, name, handler) {
+               var _this = this;
+
+               el.on(name, this.segSelector, function(ev) {
+                       var seg = $(this).data('fc-seg'); // grab segment data. put there by View::renderEvents
+
+                       // only call the handlers if there is not a drag/resize in progress
+                       if (seg && !_this.isDraggingSeg && !_this.isResizingSeg) {
+                               return handler.call(_this, seg, ev); // context will be the Grid
+                       }
+               });
+       },
+
+
+       handleSegClick: function(seg, ev) {
+               var res = this.view.publiclyTrigger('eventClick', seg.el[0], seg.event, ev); // can return `false` to cancel
+               if (res === false) {
+                       ev.preventDefault();
+               }
+       },
+
+
+       // Updates internal state and triggers handlers for when an event element is moused over
+       handleSegMouseover: function(seg, ev) {
+               if (
+                       !GlobalEmitter.get().shouldIgnoreMouse() &&
+                       !this.mousedOverSeg
+               ) {
+                       this.mousedOverSeg = seg;
+                       if (this.view.isEventResizable(seg.event)) {
+                               seg.el.addClass('fc-allow-mouse-resize');
+                       }
+                       this.view.publiclyTrigger('eventMouseover', seg.el[0], seg.event, ev);
+               }
+       },
+
+
+       // Updates internal state and triggers handlers for when an event element is moused out.
+       // Can be given no arguments, in which case it will mouseout the segment that was previously moused over.
+       handleSegMouseout: function(seg, ev) {
+               ev = ev || {}; // if given no args, make a mock mouse event
+
+               if (this.mousedOverSeg) {
+                       seg = seg || this.mousedOverSeg; // if given no args, use the currently moused-over segment
+                       this.mousedOverSeg = null;
+                       if (this.view.isEventResizable(seg.event)) {
+                               seg.el.removeClass('fc-allow-mouse-resize');
+                       }
+                       this.view.publiclyTrigger('eventMouseout', seg.el[0], seg.event, ev);
+               }
+       },
+
+
+       handleSegMousedown: function(seg, ev) {
+               var isResizing = this.startSegResize(seg, ev, { distance: 5 });
+
+               if (!isResizing && this.view.isEventDraggable(seg.event)) {
+                       this.buildSegDragListener(seg)
+                               .startInteraction(ev, {
+                                       distance: 5
+                               });
+               }
+       },
+
+
+       handleSegTouchStart: function(seg, ev) {
+               var view = this.view;
+               var event = seg.event;
+               var isSelected = view.isEventSelected(event);
+               var isDraggable = view.isEventDraggable(event);
+               var isResizable = view.isEventResizable(event);
+               var isResizing = false;
+               var dragListener;
+               var eventLongPressDelay;
+
+               if (isSelected && isResizable) {
+                       // only allow resizing of the event is selected
+                       isResizing = this.startSegResize(seg, ev);
+               }
+
+               if (!isResizing && (isDraggable || isResizable)) { // allowed to be selected?
+
+                       eventLongPressDelay = view.opt('eventLongPressDelay');
+                       if (eventLongPressDelay == null) {
+                               eventLongPressDelay = view.opt('longPressDelay'); // fallback
+                       }
+
+                       dragListener = isDraggable ?
+                               this.buildSegDragListener(seg) :
+                               this.buildSegSelectListener(seg); // seg isn't draggable, but still needs to be selected
+
+                       dragListener.startInteraction(ev, { // won't start if already started
+                               delay: isSelected ? 0 : eventLongPressDelay // do delay if not already selected
+                       });
+               }
+       },
+
+
+       // returns boolean whether resizing actually started or not.
+       // assumes the seg allows resizing.
+       // `dragOptions` are optional.
+       startSegResize: function(seg, ev, dragOptions) {
+               if ($(ev.target).is('.fc-resizer')) {
+                       this.buildSegResizeListener(seg, $(ev.target).is('.fc-start-resizer'))
+                               .startInteraction(ev, dragOptions);
+                       return true;
+               }
+               return false;
+       },
+
+
+
+       /* Event Dragging
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Builds a listener that will track user-dragging on an event segment.
+       // Generic enough to work with any type of Grid.
+       // Has side effect of setting/unsetting `segDragListener`
+       buildSegDragListener: function(seg) {
+               var _this = this;
+               var view = this.view;
+               var calendar = view.calendar;
+               var el = seg.el;
+               var event = seg.event;
+               var isDragging;
+               var mouseFollower; // A clone of the original element that will move with the mouse
+               var dropLocation; // zoned event date properties
+
+               if (this.segDragListener) {
+                       return this.segDragListener;
+               }
+
+               // Tracks mouse movement over the *view's* coordinate map. Allows dragging and dropping between subcomponents
+               // of the view.
+               var dragListener = this.segDragListener = new HitDragListener(view, {
+                       scroll: view.opt('dragScroll'),
+                       subjectEl: el,
+                       subjectCenter: true,
+                       interactionStart: function(ev) {
+                               seg.component = _this; // for renderDrag
+                               isDragging = false;
+                               mouseFollower = new MouseFollower(seg.el, {
+                                       additionalClass: 'fc-dragging',
+                                       parentEl: view.el,
+                                       opacity: dragListener.isTouch ? null : view.opt('dragOpacity'),
+                                       revertDuration: view.opt('dragRevertDuration'),
+                                       zIndex: 2 // one above the .fc-view
+                               });
+                               mouseFollower.hide(); // don't show until we know this is a real drag
+                               mouseFollower.start(ev);
+                       },
+                       dragStart: function(ev) {
+                               if (dragListener.isTouch && !view.isEventSelected(event)) {
+                                       // if not previously selected, will fire after a delay. then, select the event
+                                       view.selectEvent(event);
+                               }
+                               isDragging = true;
+                               _this.handleSegMouseout(seg, ev); // ensure a mouseout on the manipulated event has been reported
+                               _this.segDragStart(seg, ev);
+                               view.hideEvent(event); // hide all event segments. our mouseFollower will take over
+                       },
+                       hitOver: function(hit, isOrig, origHit) {
+                               var dragHelperEls;
+
+                               // starting hit could be forced (DayGrid.limit)
+                               if (seg.hit) {
+                                       origHit = seg.hit;
+                               }
+
+                               // since we are querying the parent view, might not belong to this grid
+                               dropLocation = _this.computeEventDrop(
+                                       origHit.component.getHitSpan(origHit),
+                                       hit.component.getHitSpan(hit),
+                                       event
+                               );
+
+                               if (dropLocation && !calendar.isEventSpanAllowed(_this.eventToSpan(dropLocation), event)) {
+                                       disableCursor();
+                                       dropLocation = null;
+                               }
+
+                               // if a valid drop location, have the subclass render a visual indication
+                               if (dropLocation && (dragHelperEls = view.renderDrag(dropLocation, seg))) {
+
+                                       dragHelperEls.addClass('fc-dragging');
+                                       if (!dragListener.isTouch) {
+                                               _this.applyDragOpacity(dragHelperEls);
+                                       }
+
+                                       mouseFollower.hide(); // if the subclass is already using a mock event "helper", hide our own
+                               }
+                               else {
+                                       mouseFollower.show(); // otherwise, have the helper follow the mouse (no snapping)
+                               }
+
+                               if (isOrig) {
+                                       dropLocation = null; // needs to have moved hits to be a valid drop
+                               }
+                       },
+                       hitOut: function() { // called before mouse moves to a different hit OR moved out of all hits
+                               view.unrenderDrag(); // unrender whatever was done in renderDrag
+                               mouseFollower.show(); // show in case we are moving out of all hits
+                               dropLocation = null;
+                       },
+                       hitDone: function() { // Called after a hitOut OR before a dragEnd
+                               enableCursor();
+                       },
+                       interactionEnd: function(ev) {
+                               delete seg.component; // prevent side effects
+
+                               // do revert animation if hasn't changed. calls a callback when finished (whether animation or not)
+                               mouseFollower.stop(!dropLocation, function() {
+                                       if (isDragging) {
+                                               view.unrenderDrag();
+                                               _this.segDragStop(seg, ev);
+                                       }
+
+                                       if (dropLocation) {
+                                               // no need to re-show original, will rerender all anyways. esp important if eventRenderWait
+                                               view.reportSegDrop(seg, dropLocation, _this.largeUnit, el, ev);
+                                       }
+                                       else {
+                                               view.showEvent(event);
+                                       }
+                               });
+                               _this.segDragListener = null;
+                       }
+               });
+
+               return dragListener;
+       },
+
+
+       // seg isn't draggable, but let's use a generic DragListener
+       // simply for the delay, so it can be selected.
+       // Has side effect of setting/unsetting `segDragListener`
+       buildSegSelectListener: function(seg) {
+               var _this = this;
+               var view = this.view;
+               var event = seg.event;
+
+               if (this.segDragListener) {
+                       return this.segDragListener;
+               }
+
+               var dragListener = this.segDragListener = new DragListener({
+                       dragStart: function(ev) {
+                               if (dragListener.isTouch && !view.isEventSelected(event)) {
+                                       // if not previously selected, will fire after a delay. then, select the event
+                                       view.selectEvent(event);
+                               }
+                       },
+                       interactionEnd: function(ev) {
+                               _this.segDragListener = null;
+                       }
+               });
+
+               return dragListener;
+       },
+
+
+       // Called before event segment dragging starts
+       segDragStart: function(seg, ev) {
+               this.isDraggingSeg = true;
+               this.view.publiclyTrigger('eventDragStart', seg.el[0], seg.event, ev, {}); // last argument is jqui dummy
+       },
+
+
+       // Called after event segment dragging stops
+       segDragStop: function(seg, ev) {
+               this.isDraggingSeg = false;
+               this.view.publiclyTrigger('eventDragStop', seg.el[0], seg.event, ev, {}); // last argument is jqui dummy
+       },
+
+
+       // Given the spans an event drag began, and the span event was dropped, calculates the new zoned start/end/allDay
+       // values for the event. Subclasses may override and set additional properties to be used by renderDrag.
+       // A falsy returned value indicates an invalid drop.
+       // DOES NOT consider overlap/constraint.
+       computeEventDrop: function(startSpan, endSpan, event) {
+               var calendar = this.view.calendar;
+               var dragStart = startSpan.start;
+               var dragEnd = endSpan.start;
+               var delta;
+               var dropLocation; // zoned event date properties
+
+               if (dragStart.hasTime() === dragEnd.hasTime()) {
+                       delta = this.diffDates(dragEnd, dragStart);
+
+                       // if an all-day event was in a timed area and it was dragged to a different time,
+                       // guarantee an end and adjust start/end to have times
+                       if (event.allDay && durationHasTime(delta)) {
+                               dropLocation = {
+                                       start: event.start.clone(),
+                                       end: calendar.getEventEnd(event), // will be an ambig day
+                                       allDay: false // for normalizeEventTimes
+                               };
+                               calendar.normalizeEventTimes(dropLocation);
+                       }
+                       // othewise, work off existing values
+                       else {
+                               dropLocation = pluckEventDateProps(event);
+                       }
+
+                       dropLocation.start.add(delta);
+                       if (dropLocation.end) {
+                               dropLocation.end.add(delta);
+                       }
+               }
+               else {
+                       // if switching from day <-> timed, start should be reset to the dropped date, and the end cleared
+                       dropLocation = {
+                               start: dragEnd.clone(),
+                               end: null, // end should be cleared
+                               allDay: !dragEnd.hasTime()
+                       };
+               }
+
+               return dropLocation;
+       },
+
+
+       // Utility for apply dragOpacity to a jQuery set
+       applyDragOpacity: function(els) {
+               var opacity = this.view.opt('dragOpacity');
+
+               if (opacity != null) {
+                       els.css('opacity', opacity);
+               }
+       },
+
+
+       /* External Element Dragging
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Called when a jQuery UI drag is initiated anywhere in the DOM
+       externalDragStart: function(ev, ui) {
+               var view = this.view;
+               var el;
+               var accept;
+
+               if (view.opt('droppable')) { // only listen if this setting is on
+                       el = $((ui ? ui.item : null) || ev.target);
+
+                       // Test that the dragged element passes the dropAccept selector or filter function.
+                       // FYI, the default is "*" (matches all)
+                       accept = view.opt('dropAccept');
+                       if ($.isFunction(accept) ? accept.call(el[0], el) : el.is(accept)) {
+                               if (!this.isDraggingExternal) { // prevent double-listening if fired twice
+                                       this.listenToExternalDrag(el, ev, ui);
+                               }
+                       }
+               }
+       },
+
+
+       // Called when a jQuery UI drag starts and it needs to be monitored for dropping
+       listenToExternalDrag: function(el, ev, ui) {
+               var _this = this;
+               var calendar = this.view.calendar;
+               var meta = getDraggedElMeta(el); // extra data about event drop, including possible event to create
+               var dropLocation; // a null value signals an unsuccessful drag
+
+               // listener that tracks mouse movement over date-associated pixel regions
+               var dragListener = _this.externalDragListener = new HitDragListener(this, {
+                       interactionStart: function() {
+                               _this.isDraggingExternal = true;
+                       },
+                       hitOver: function(hit) {
+                               dropLocation = _this.computeExternalDrop(
+                                       hit.component.getHitSpan(hit), // since we are querying the parent view, might not belong to this grid
+                                       meta
+                               );
+
+                               if ( // invalid hit?
+                                       dropLocation &&
+                                       !calendar.isExternalSpanAllowed(_this.eventToSpan(dropLocation), dropLocation, meta.eventProps)
+                               ) {
+                                       disableCursor();
+                                       dropLocation = null;
+                               }
+
+                               if (dropLocation) {
+                                       _this.renderDrag(dropLocation); // called without a seg parameter
+                               }
+                       },
+                       hitOut: function() {
+                               dropLocation = null; // signal unsuccessful
+                       },
+                       hitDone: function() { // Called after a hitOut OR before a dragEnd
+                               enableCursor();
+                               _this.unrenderDrag();
+                       },
+                       interactionEnd: function(ev) {
+                               if (dropLocation) { // element was dropped on a valid hit
+                                       _this.view.reportExternalDrop(meta, dropLocation, el, ev, ui);
+                               }
+                               _this.isDraggingExternal = false;
+                               _this.externalDragListener = null;
+                       }
+               });
+
+               dragListener.startDrag(ev); // start listening immediately
+       },
+
+
+       // Given a hit to be dropped upon, and misc data associated with the jqui drag (guaranteed to be a plain object),
+       // returns the zoned start/end dates for the event that would result from the hypothetical drop. end might be null.
+       // Returning a null value signals an invalid drop hit.
+       // DOES NOT consider overlap/constraint.
+       computeExternalDrop: function(span, meta) {
+               var calendar = this.view.calendar;
+               var dropLocation = {
+                       start: calendar.applyTimezone(span.start), // simulate a zoned event start date
+                       end: null
+               };
+
+               // if dropped on an all-day span, and element's metadata specified a time, set it
+               if (meta.startTime && !dropLocation.start.hasTime()) {
+                       dropLocation.start.time(meta.startTime);
+               }
+
+               if (meta.duration) {
+                       dropLocation.end = dropLocation.start.clone().add(meta.duration);
+               }
+
+               return dropLocation;
+       },
+
+
+
+       /* Drag Rendering (for both events and an external elements)
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a visual indication of an event or external element being dragged.
+       // `dropLocation` contains hypothetical start/end/allDay values the event would have if dropped. end can be null.
+       // `seg` is the internal segment object that is being dragged. If dragging an external element, `seg` is null.
+       // A truthy returned value indicates this method has rendered a helper element.
+       // Must return elements used for any mock events.
+       renderDrag: function(dropLocation, seg) {
+               // subclasses must implement
+       },
+
+
+       // Unrenders a visual indication of an event or external element being dragged
+       unrenderDrag: function() {
+               // subclasses must implement
+       },
+
+
+       /* Resizing
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Creates a listener that tracks the user as they resize an event segment.
+       // Generic enough to work with any type of Grid.
+       buildSegResizeListener: function(seg, isStart) {
+               var _this = this;
+               var view = this.view;
+               var calendar = view.calendar;
+               var el = seg.el;
+               var event = seg.event;
+               var eventEnd = calendar.getEventEnd(event);
+               var isDragging;
+               var resizeLocation; // zoned event date properties. falsy if invalid resize
+
+               // Tracks mouse movement over the *grid's* coordinate map
+               var dragListener = this.segResizeListener = new HitDragListener(this, {
+                       scroll: view.opt('dragScroll'),
+                       subjectEl: el,
+                       interactionStart: function() {
+                               isDragging = false;
+                       },
+                       dragStart: function(ev) {
+                               isDragging = true;
+                               _this.handleSegMouseout(seg, ev); // ensure a mouseout on the manipulated event has been reported
+                               _this.segResizeStart(seg, ev);
+                       },
+                       hitOver: function(hit, isOrig, origHit) {
+                               var origHitSpan = _this.getHitSpan(origHit);
+                               var hitSpan = _this.getHitSpan(hit);
+
+                               resizeLocation = isStart ?
+                                       _this.computeEventStartResize(origHitSpan, hitSpan, event) :
+                                       _this.computeEventEndResize(origHitSpan, hitSpan, event);
+
+                               if (resizeLocation) {
+                                       if (!calendar.isEventSpanAllowed(_this.eventToSpan(resizeLocation), event)) {
+                                               disableCursor();
+                                               resizeLocation = null;
+                                       }
+                                       // no change? (FYI, event dates might have zones)
+                                       else if (
+                                               resizeLocation.start.isSame(event.start.clone().stripZone()) &&
+                                               resizeLocation.end.isSame(eventEnd.clone().stripZone())
+                                       ) {
+                                               resizeLocation = null;
+                                       }
+                               }
+
+                               if (resizeLocation) {
+                                       view.hideEvent(event);
+                                       _this.renderEventResize(resizeLocation, seg);
+                               }
+                       },
+                       hitOut: function() { // called before mouse moves to a different hit OR moved out of all hits
+                               resizeLocation = null;
+                               view.showEvent(event); // for when out-of-bounds. show original
+                       },
+                       hitDone: function() { // resets the rendering to show the original event
+                               _this.unrenderEventResize();
+                               enableCursor();
+                       },
+                       interactionEnd: function(ev) {
+                               if (isDragging) {
+                                       _this.segResizeStop(seg, ev);
+                               }
+
+                               if (resizeLocation) { // valid date to resize to?
+                                       // no need to re-show original, will rerender all anyways. esp important if eventRenderWait
+                                       view.reportSegResize(seg, resizeLocation, _this.largeUnit, el, ev);
+                               }
+                               else {
+                                       view.showEvent(event);
+                               }
+                               _this.segResizeListener = null;
+                       }
+               });
+
+               return dragListener;
+       },
+
+
+       // Called before event segment resizing starts
+       segResizeStart: function(seg, ev) {
+               this.isResizingSeg = true;
+               this.view.publiclyTrigger('eventResizeStart', seg.el[0], seg.event, ev, {}); // last argument is jqui dummy
+       },
+
+
+       // Called after event segment resizing stops
+       segResizeStop: function(seg, ev) {
+               this.isResizingSeg = false;
+               this.view.publiclyTrigger('eventResizeStop', seg.el[0], seg.event, ev, {}); // last argument is jqui dummy
+       },
+
+
+       // Returns new date-information for an event segment being resized from its start
+       computeEventStartResize: function(startSpan, endSpan, event) {
+               return this.computeEventResize('start', startSpan, endSpan, event);
+       },
+
+
+       // Returns new date-information for an event segment being resized from its end
+       computeEventEndResize: function(startSpan, endSpan, event) {
+               return this.computeEventResize('end', startSpan, endSpan, event);
+       },
+
+
+       // Returns new zoned date information for an event segment being resized from its start OR end
+       // `type` is either 'start' or 'end'.
+       // DOES NOT consider overlap/constraint.
+       computeEventResize: function(type, startSpan, endSpan, event) {
+               var calendar = this.view.calendar;
+               var delta = this.diffDates(endSpan[type], startSpan[type]);
+               var resizeLocation; // zoned event date properties
+               var defaultDuration;
+
+               // build original values to work from, guaranteeing a start and end
+               resizeLocation = {
+                       start: event.start.clone(),
+                       end: calendar.getEventEnd(event),
+                       allDay: event.allDay
+               };
+
+               // if an all-day event was in a timed area and was resized to a time, adjust start/end to have times
+               if (resizeLocation.allDay && durationHasTime(delta)) {
+                       resizeLocation.allDay = false;
+                       calendar.normalizeEventTimes(resizeLocation);
+               }
+
+               resizeLocation[type].add(delta); // apply delta to start or end
+
+               // if the event was compressed too small, find a new reasonable duration for it
+               if (!resizeLocation.start.isBefore(resizeLocation.end)) {
+
+                       defaultDuration =
+                               this.minResizeDuration || // TODO: hack
+                               (event.allDay ?
+                                       calendar.defaultAllDayEventDuration :
+                                       calendar.defaultTimedEventDuration);
+
+                       if (type == 'start') { // resizing the start?
+                               resizeLocation.start = resizeLocation.end.clone().subtract(defaultDuration);
+                       }
+                       else { // resizing the end?
+                               resizeLocation.end = resizeLocation.start.clone().add(defaultDuration);
+                       }
+               }
+
+               return resizeLocation;
+       },
+
+
+       // Renders a visual indication of an event being resized.
+       // `range` has the updated dates of the event. `seg` is the original segment object involved in the drag.
+       // Must return elements used for any mock events.
+       renderEventResize: function(range, seg) {
+               // subclasses must implement
+       },
+
+
+       // Unrenders a visual indication of an event being resized.
+       unrenderEventResize: function() {
+               // subclasses must implement
+       },
+
+
+       /* Rendering Utils
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Compute the text that should be displayed on an event's element.
+       // `range` can be the Event object itself, or something range-like, with at least a `start`.
+       // If event times are disabled, or the event has no time, will return a blank string.
+       // If not specified, formatStr will default to the eventTimeFormat setting,
+       // and displayEnd will default to the displayEventEnd setting.
+       getEventTimeText: function(range, formatStr, displayEnd) {
+
+               if (formatStr == null) {
+                       formatStr = this.eventTimeFormat;
+               }
+
+               if (displayEnd == null) {
+                       displayEnd = this.displayEventEnd;
+               }
+
+               if (this.displayEventTime && range.start.hasTime()) {
+                       if (displayEnd && range.end) {
+                               return this.view.formatRange(range, formatStr);
+                       }
+                       else {
+                               return range.start.format(formatStr);
+                       }
+               }
+
+               return '';
+       },
+
+
+       // Generic utility for generating the HTML classNames for an event segment's element
+       getSegClasses: function(seg, isDraggable, isResizable) {
+               var view = this.view;
+               var classes = [
+                       'fc-event',
+                       seg.isStart ? 'fc-start' : 'fc-not-start',
+                       seg.isEnd ? 'fc-end' : 'fc-not-end'
+               ].concat(this.getSegCustomClasses(seg));
+
+               if (isDraggable) {
+                       classes.push('fc-draggable');
+               }
+               if (isResizable) {
+                       classes.push('fc-resizable');
+               }
+
+               // event is currently selected? attach a className.
+               if (view.isEventSelected(seg.event)) {
+                       classes.push('fc-selected');
+               }
+
+               return classes;
+       },
+
+
+       // List of classes that were defined by the caller of the API in some way
+       getSegCustomClasses: function(seg) {
+               var event = seg.event;
+
+               return [].concat(
+                       event.className, // guaranteed to be an array
+                       event.source ? event.source.className : []
+               );
+       },
+
+
+       // Utility for generating event skin-related CSS properties
+       getSegSkinCss: function(seg) {
+               return {
+                       'background-color': this.getSegBackgroundColor(seg),
+                       'border-color': this.getSegBorderColor(seg),
+                       color: this.getSegTextColor(seg)
+               };
+       },
+
+
+       // Queries for caller-specified color, then falls back to default
+       getSegBackgroundColor: function(seg) {
+               return seg.event.backgroundColor ||
+                       seg.event.color ||
+                       this.getSegDefaultBackgroundColor(seg);
+       },
+
+
+       getSegDefaultBackgroundColor: function(seg) {
+               var source = seg.event.source || {};
+
+               return source.backgroundColor ||
+                       source.color ||
+                       this.view.opt('eventBackgroundColor') ||
+                       this.view.opt('eventColor');
+       },
+
+
+       // Queries for caller-specified color, then falls back to default
+       getSegBorderColor: function(seg) {
+               return seg.event.borderColor ||
+                       seg.event.color ||
+                       this.getSegDefaultBorderColor(seg);
+       },
+
+
+       getSegDefaultBorderColor: function(seg) {
+               var source = seg.event.source || {};
+
+               return source.borderColor ||
+                       source.color ||
+                       this.view.opt('eventBorderColor') ||
+                       this.view.opt('eventColor');
+       },
+
+
+       // Queries for caller-specified color, then falls back to default
+       getSegTextColor: function(seg) {
+               return seg.event.textColor ||
+                       this.getSegDefaultTextColor(seg);
+       },
+
+
+       getSegDefaultTextColor: function(seg) {
+               var source = seg.event.source || {};
+
+               return source.textColor ||
+                       this.view.opt('eventTextColor');
+       },
+
+
+       /* Converting events -> eventRange -> eventSpan -> eventSegs
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Generates an array of segments for the given single event
+       // Can accept an event "location" as well (which only has start/end and no allDay)
+       eventToSegs: function(event) {
+               return this.eventsToSegs([ event ]);
+       },
+
+
+       eventToSpan: function(event) {
+               return this.eventToSpans(event)[0];
+       },
+
+
+       // Generates spans (always unzoned) for the given event.
+       // Does not do any inverting for inverse-background events.
+       // Can accept an event "location" as well (which only has start/end and no allDay)
+       eventToSpans: function(event) {
+               var range = this.eventToRange(event);
+               return this.eventRangeToSpans(range, event);
+       },
+
+
+
+       // Converts an array of event objects into an array of event segment objects.
+       // A custom `segSliceFunc` may be given for arbitrarily slicing up events.
+       // Doesn't guarantee an order for the resulting array.
+       eventsToSegs: function(allEvents, segSliceFunc) {
+               var _this = this;
+               var eventsById = groupEventsById(allEvents);
+               var segs = [];
+
+               $.each(eventsById, function(id, events) {
+                       var ranges = [];
+                       var i;
+
+                       for (i = 0; i < events.length; i++) {
+                               ranges.push(_this.eventToRange(events[i]));
+                       }
+
+                       // inverse-background events (utilize only the first event in calculations)
+                       if (isInverseBgEvent(events[0])) {
+                               ranges = _this.invertRanges(ranges);
+
+                               for (i = 0; i < ranges.length; i++) {
+                                       segs.push.apply(segs, // append to
+                                               _this.eventRangeToSegs(ranges[i], events[0], segSliceFunc));
+                               }
+                       }
+                       // normal event ranges
+                       else {
+                               for (i = 0; i < ranges.length; i++) {
+                                       segs.push.apply(segs, // append to
+                                               _this.eventRangeToSegs(ranges[i], events[i], segSliceFunc));
+                               }
+                       }
+               });
+
+               return segs;
+       },
+
+
+       // Generates the unzoned start/end dates an event appears to occupy
+       // Can accept an event "location" as well (which only has start/end and no allDay)
+       eventToRange: function(event) {
+               var calendar = this.view.calendar;
+               var start = event.start.clone().stripZone();
+               var end = (
+                               event.end ?
+                                       event.end.clone() :
+                                       // derive the end from the start and allDay. compute allDay if necessary
+                                       calendar.getDefaultEventEnd(
+                                               event.allDay != null ?
+                                                       event.allDay :
+                                                       !event.start.hasTime(),
+                                               event.start
+                                       )
+                       ).stripZone();
+
+               // hack: dynamic locale change forgets to upate stored event localed
+               calendar.localizeMoment(start);
+               calendar.localizeMoment(end);
+
+               return { start: start, end: end };
+       },
+
+
+       // Given an event's range (unzoned start/end), and the event itself,
+       // slice into segments (using the segSliceFunc function if specified)
+       eventRangeToSegs: function(range, event, segSliceFunc) {
+               var spans = this.eventRangeToSpans(range, event);
+               var segs = [];
+               var i;
+
+               for (i = 0; i < spans.length; i++) {
+                       segs.push.apply(segs, // append to
+                               this.eventSpanToSegs(spans[i], event, segSliceFunc));
+               }
+
+               return segs;
+       },
+
+
+       // Given an event's unzoned date range, return an array of "span" objects.
+       // Subclasses can override.
+       eventRangeToSpans: function(range, event) {
+               return [ $.extend({}, range) ]; // copy into a single-item array
+       },
+
+
+       // Given an event's span (unzoned start/end and other misc data), and the event itself,
+       // slices into segments and attaches event-derived properties to them.
+       eventSpanToSegs: function(span, event, segSliceFunc) {
+               var segs = segSliceFunc ? segSliceFunc(span) : this.spanToSegs(span);
+               var i, seg;
+
+               for (i = 0; i < segs.length; i++) {
+                       seg = segs[i];
+                       seg.event = event;
+                       seg.eventStartMS = +span.start; // TODO: not the best name after making spans unzoned
+                       seg.eventDurationMS = span.end - span.start;
+               }
+
+               return segs;
+       },
+
+
+       // Produces a new array of range objects that will cover all the time NOT covered by the given ranges.
+       // SIDE EFFECT: will mutate the given array and will use its date references.
+       invertRanges: function(ranges) {
+               var view = this.view;
+               var viewStart = view.start.clone(); // need a copy
+               var viewEnd = view.end.clone(); // need a copy
+               var inverseRanges = [];
+               var start = viewStart; // the end of the previous range. the start of the new range
+               var i, range;
+
+               // ranges need to be in order. required for our date-walking algorithm
+               ranges.sort(compareRanges);
+
+               for (i = 0; i < ranges.length; i++) {
+                       range = ranges[i];
+
+                       // add the span of time before the event (if there is any)
+                       if (range.start > start) { // compare millisecond time (skip any ambig logic)
+                               inverseRanges.push({
+                                       start: start,
+                                       end: range.start
+                               });
+                       }
+
+                       start = range.end;
+               }
+
+               // add the span of time after the last event (if there is any)
+               if (start < viewEnd) { // compare millisecond time (skip any ambig logic)
+                       inverseRanges.push({
+                               start: start,
+                               end: viewEnd
+                       });
+               }
+
+               return inverseRanges;
+       },
+
+
+       sortEventSegs: function(segs) {
+               segs.sort(proxy(this, 'compareEventSegs'));
+       },
+
+
+       // A cmp function for determining which segments should take visual priority
+       compareEventSegs: function(seg1, seg2) {
+               return seg1.eventStartMS - seg2.eventStartMS || // earlier events go first
+                       seg2.eventDurationMS - seg1.eventDurationMS || // tie? longer events go first
+                       seg2.event.allDay - seg1.event.allDay || // tie? put all-day events first (booleans cast to 0/1)
+                       compareByFieldSpecs(seg1.event, seg2.event, this.view.eventOrderSpecs);
+       }
+
+});
+
+
+/* Utilities
+----------------------------------------------------------------------------------------------------------------------*/
+
+
+function pluckEventDateProps(event) {
+       return {
+               start: event.start.clone(),
+               end: event.end ? event.end.clone() : null,
+               allDay: event.allDay // keep it the same
+       };
+}
+FC.pluckEventDateProps = pluckEventDateProps;
+
+
+function isBgEvent(event) { // returns true if background OR inverse-background
+       var rendering = getEventRendering(event);
+       return rendering === 'background' || rendering === 'inverse-background';
+}
+FC.isBgEvent = isBgEvent; // export
+
+
+function isInverseBgEvent(event) {
+       return getEventRendering(event) === 'inverse-background';
+}
+
+
+function getEventRendering(event) {
+       return firstDefined((event.source || {}).rendering, event.rendering);
+}
+
+
+function groupEventsById(events) {
+       var eventsById = {};
+       var i, event;
+
+       for (i = 0; i < events.length; i++) {
+               event = events[i];
+               (eventsById[event._id] || (eventsById[event._id] = [])).push(event);
+       }
+
+       return eventsById;
+}
+
+
+// A cmp function for determining which non-inverted "ranges" (see above) happen earlier
+function compareRanges(range1, range2) {
+       return range1.start - range2.start; // earlier ranges go first
+}
+
+
+/* External-Dragging-Element Data
+----------------------------------------------------------------------------------------------------------------------*/
+
+// Require all HTML5 data-* attributes used by FullCalendar to have this prefix.
+// A value of '' will query attributes like data-event. A value of 'fc' will query attributes like data-fc-event.
+FC.dataAttrPrefix = '';
+
+// Given a jQuery element that might represent a dragged FullCalendar event, returns an intermediate data structure
+// to be used for Event Object creation.
+// A defined `.eventProps`, even when empty, indicates that an event should be created.
+function getDraggedElMeta(el) {
+       var prefix = FC.dataAttrPrefix;
+       var eventProps; // properties for creating the event, not related to date/time
+       var startTime; // a Duration
+       var duration;
+       var stick;
+
+       if (prefix) { prefix += '-'; }
+       eventProps = el.data(prefix + 'event') || null;
+
+       if (eventProps) {
+               if (typeof eventProps === 'object') {
+                       eventProps = $.extend({}, eventProps); // make a copy
+               }
+               else { // something like 1 or true. still signal event creation
+                       eventProps = {};
+               }
+
+               // pluck special-cased date/time properties
+               startTime = eventProps.start;
+               if (startTime == null) { startTime = eventProps.time; } // accept 'time' as well
+               duration = eventProps.duration;
+               stick = eventProps.stick;
+               delete eventProps.start;
+               delete eventProps.time;
+               delete eventProps.duration;
+               delete eventProps.stick;
+       }
+
+       // fallback to standalone attribute values for each of the date/time properties
+       if (startTime == null) { startTime = el.data(prefix + 'start'); }
+       if (startTime == null) { startTime = el.data(prefix + 'time'); } // accept 'time' as well
+       if (duration == null) { duration = el.data(prefix + 'duration'); }
+       if (stick == null) { stick = el.data(prefix + 'stick'); }
+
+       // massage into correct data types
+       startTime = startTime != null ? moment.duration(startTime) : null;
+       duration = duration != null ? moment.duration(duration) : null;
+       stick = Boolean(stick);
+
+       return { eventProps: eventProps, startTime: startTime, duration: duration, stick: stick };
+}
+
+
+;;
+
+/*
+A set of rendering and date-related methods for a visual component comprised of one or more rows of day columns.
+Prerequisite: the object being mixed into needs to be a *Grid*
+*/
+var DayTableMixin = FC.DayTableMixin = {
+
+       breakOnWeeks: false, // should create a new row for each week?
+       dayDates: null, // whole-day dates for each column. left to right
+       dayIndices: null, // for each day from start, the offset
+       daysPerRow: null,
+       rowCnt: null,
+       colCnt: null,
+       colHeadFormat: null,
+
+
+       // Populates internal variables used for date calculation and rendering
+       updateDayTable: function() {
+               var view = this.view;
+               var date = this.start.clone();
+               var dayIndex = -1;
+               var dayIndices = [];
+               var dayDates = [];
+               var daysPerRow;
+               var firstDay;
+               var rowCnt;
+
+               while (date.isBefore(this.end)) { // loop each day from start to end
+                       if (view.isHiddenDay(date)) {
+                               dayIndices.push(dayIndex + 0.5); // mark that it's between indices
+                       }
+                       else {
+                               dayIndex++;
+                               dayIndices.push(dayIndex);
+                               dayDates.push(date.clone());
+                       }
+                       date.add(1, 'days');
+               }
+
+               if (this.breakOnWeeks) {
+                       // count columns until the day-of-week repeats
+                       firstDay = dayDates[0].day();
+                       for (daysPerRow = 1; daysPerRow < dayDates.length; daysPerRow++) {
+                               if (dayDates[daysPerRow].day() == firstDay) {
+                                       break;
+                               }
+                       }
+                       rowCnt = Math.ceil(dayDates.length / daysPerRow);
+               }
+               else {
+                       rowCnt = 1;
+                       daysPerRow = dayDates.length;
+               }
+
+               this.dayDates = dayDates;
+               this.dayIndices = dayIndices;
+               this.daysPerRow = daysPerRow;
+               this.rowCnt = rowCnt;
+
+               this.updateDayTableCols();
+       },
+
+
+       // Computes and assigned the colCnt property and updates any options that may be computed from it
+       updateDayTableCols: function() {
+               this.colCnt = this.computeColCnt();
+               this.colHeadFormat = this.view.opt('columnFormat') || this.computeColHeadFormat();
+       },
+
+
+       // Determines how many columns there should be in the table
+       computeColCnt: function() {
+               return this.daysPerRow;
+       },
+
+
+       // Computes the ambiguously-timed moment for the given cell
+       getCellDate: function(row, col) {
+               return this.dayDates[
+                               this.getCellDayIndex(row, col)
+                       ].clone();
+       },
+
+
+       // Computes the ambiguously-timed date range for the given cell
+       getCellRange: function(row, col) {
+               var start = this.getCellDate(row, col);
+               var end = start.clone().add(1, 'days');
+
+               return { start: start, end: end };
+       },
+
+
+       // Returns the number of day cells, chronologically, from the first of the grid (0-based)
+       getCellDayIndex: function(row, col) {
+               return row * this.daysPerRow + this.getColDayIndex(col);
+       },
+
+
+       // Returns the numner of day cells, chronologically, from the first cell in *any given row*
+       getColDayIndex: function(col) {
+               if (this.isRTL) {
+                       return this.colCnt - 1 - col;
+               }
+               else {
+                       return col;
+               }
+       },
+
+
+       // Given a date, returns its chronolocial cell-index from the first cell of the grid.
+       // If the date lies between cells (because of hiddenDays), returns a floating-point value between offsets.
+       // If before the first offset, returns a negative number.
+       // If after the last offset, returns an offset past the last cell offset.
+       // Only works for *start* dates of cells. Will not work for exclusive end dates for cells.
+       getDateDayIndex: function(date) {
+               var dayIndices = this.dayIndices;
+               var dayOffset = date.diff(this.start, 'days');
+
+               if (dayOffset < 0) {
+                       return dayIndices[0] - 1;
+               }
+               else if (dayOffset >= dayIndices.length) {
+                       return dayIndices[dayIndices.length - 1] + 1;
+               }
+               else {
+                       return dayIndices[dayOffset];
+               }
+       },
+
+
+       /* Options
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Computes a default column header formatting string if `colFormat` is not explicitly defined
+       computeColHeadFormat: function() {
+               // if more than one week row, or if there are a lot of columns with not much space,
+               // put just the day numbers will be in each cell
+               if (this.rowCnt > 1 || this.colCnt > 10) {
+                       return 'ddd'; // "Sat"
+               }
+               // multiple days, so full single date string WON'T be in title text
+               else if (this.colCnt > 1) {
+                       return this.view.opt('dayOfMonthFormat'); // "Sat 12/10"
+               }
+               // single day, so full single date string will probably be in title text
+               else {
+                       return 'dddd'; // "Saturday"
+               }
+       },
+
+
+       /* Slicing
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Slices up a date range into a segment for every week-row it intersects with
+       sliceRangeByRow: function(range) {
+               var daysPerRow = this.daysPerRow;
+               var normalRange = this.view.computeDayRange(range); // make whole-day range, considering nextDayThreshold
+               var rangeFirst = this.getDateDayIndex(normalRange.start); // inclusive first index
+               var rangeLast = this.getDateDayIndex(normalRange.end.clone().subtract(1, 'days')); // inclusive last index
+               var segs = [];
+               var row;
+               var rowFirst, rowLast; // inclusive day-index range for current row
+               var segFirst, segLast; // inclusive day-index range for segment
+
+               for (row = 0; row < this.rowCnt; row++) {
+                       rowFirst = row * daysPerRow;
+                       rowLast = rowFirst + daysPerRow - 1;
+
+                       // intersect segment's offset range with the row's
+                       segFirst = Math.max(rangeFirst, rowFirst);
+                       segLast = Math.min(rangeLast, rowLast);
+
+                       // deal with in-between indices
+                       segFirst = Math.ceil(segFirst); // in-between starts round to next cell
+                       segLast = Math.floor(segLast); // in-between ends round to prev cell
+
+                       if (segFirst <= segLast) { // was there any intersection with the current row?
+                               segs.push({
+                                       row: row,
+
+                                       // normalize to start of row
+                                       firstRowDayIndex: segFirst - rowFirst,
+                                       lastRowDayIndex: segLast - rowFirst,
+
+                                       // must be matching integers to be the segment's start/end
+                                       isStart: segFirst === rangeFirst,
+                                       isEnd: segLast === rangeLast
+                               });
+                       }
+               }
+
+               return segs;
+       },
+
+
+       // Slices up a date range into a segment for every day-cell it intersects with.
+       // TODO: make more DRY with sliceRangeByRow somehow.
+       sliceRangeByDay: function(range) {
+               var daysPerRow = this.daysPerRow;
+               var normalRange = this.view.computeDayRange(range); // make whole-day range, considering nextDayThreshold
+               var rangeFirst = this.getDateDayIndex(normalRange.start); // inclusive first index
+               var rangeLast = this.getDateDayIndex(normalRange.end.clone().subtract(1, 'days')); // inclusive last index
+               var segs = [];
+               var row;
+               var rowFirst, rowLast; // inclusive day-index range for current row
+               var i;
+               var segFirst, segLast; // inclusive day-index range for segment
+
+               for (row = 0; row < this.rowCnt; row++) {
+                       rowFirst = row * daysPerRow;
+                       rowLast = rowFirst + daysPerRow - 1;
+
+                       for (i = rowFirst; i <= rowLast; i++) {
+
+                               // intersect segment's offset range with the row's
+                               segFirst = Math.max(rangeFirst, i);
+                               segLast = Math.min(rangeLast, i);
+
+                               // deal with in-between indices
+                               segFirst = Math.ceil(segFirst); // in-between starts round to next cell
+                               segLast = Math.floor(segLast); // in-between ends round to prev cell
+
+                               if (segFirst <= segLast) { // was there any intersection with the current row?
+                                       segs.push({
+                                               row: row,
+
+                                               // normalize to start of row
+                                               firstRowDayIndex: segFirst - rowFirst,
+                                               lastRowDayIndex: segLast - rowFirst,
+
+                                               // must be matching integers to be the segment's start/end
+                                               isStart: segFirst === rangeFirst,
+                                               isEnd: segLast === rangeLast
+                                       });
+                               }
+                       }
+               }
+
+               return segs;
+       },
+
+
+       /* Header Rendering
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderHeadHtml: function() {
+               var view = this.view;
+
+               return '' +
+                       '<div class="fc-row ' + view.widgetHeaderClass + '">' +
+                               '<table>' +
+                                       '<thead>' +
+                                               this.renderHeadTrHtml() +
+                                       '</thead>' +
+                               '</table>' +
+                       '</div>';
+       },
+
+
+       renderHeadIntroHtml: function() {
+               return this.renderIntroHtml(); // fall back to generic
+       },
+
+
+       renderHeadTrHtml: function() {
+               return '' +
+                       '<tr>' +
+                               (this.isRTL ? '' : this.renderHeadIntroHtml()) +
+                               this.renderHeadDateCellsHtml() +
+                               (this.isRTL ? this.renderHeadIntroHtml() : '') +
+                       '</tr>';
+       },
+
+
+       renderHeadDateCellsHtml: function() {
+               var htmls = [];
+               var col, date;
+
+               for (col = 0; col < this.colCnt; col++) {
+                       date = this.getCellDate(0, col);
+                       htmls.push(this.renderHeadDateCellHtml(date));
+               }
+
+               return htmls.join('');
+       },
+
+
+       // TODO: when internalApiVersion, accept an object for HTML attributes
+       // (colspan should be no different)
+       renderHeadDateCellHtml: function(date, colspan, otherAttrs) {
+               var view = this.view;
+               var classNames = [
+                       'fc-day-header',
+                       view.widgetHeaderClass
+               ];
+
+               // if only one row of days, the classNames on the header can represent the specific days beneath
+               if (this.rowCnt === 1) {
+                       classNames = classNames.concat(
+                               // includes the day-of-week class
+                               // noThemeHighlight=true (don't highlight the header)
+                               this.getDayClasses(date, true)
+                       );
+               }
+               else {
+                       classNames.push('fc-' + dayIDs[date.day()]); // only add the day-of-week class
+               }
+
+               return '' +
+            '<th class="' + classNames.join(' ') + '"' +
+                               (this.rowCnt === 1 ?
+                                       ' data-date="' + date.format('YYYY-MM-DD') + '"' :
+                                       '') +
+                               (colspan > 1 ?
+                                       ' colspan="' + colspan + '"' :
+                                       '') +
+                               (otherAttrs ?
+                                       ' ' + otherAttrs :
+                                       '') +
+                               '>' +
+                               // don't make a link if the heading could represent multiple days, or if there's only one day (forceOff)
+                               view.buildGotoAnchorHtml(
+                                       { date: date, forceOff: this.rowCnt > 1 || this.colCnt === 1 },
+                                       htmlEscape(date.format(this.colHeadFormat)) // inner HTML
+                               ) +
+                       '</th>';
+       },
+
+
+       /* Background Rendering
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderBgTrHtml: function(row) {
+               return '' +
+                       '<tr>' +
+                               (this.isRTL ? '' : this.renderBgIntroHtml(row)) +
+                               this.renderBgCellsHtml(row) +
+                               (this.isRTL ? this.renderBgIntroHtml(row) : '') +
+                       '</tr>';
+       },
+
+
+       renderBgIntroHtml: function(row) {
+               return this.renderIntroHtml(); // fall back to generic
+       },
+
+
+       renderBgCellsHtml: function(row) {
+               var htmls = [];
+               var col, date;
+
+               for (col = 0; col < this.colCnt; col++) {
+                       date = this.getCellDate(row, col);
+                       htmls.push(this.renderBgCellHtml(date));
+               }
+
+               return htmls.join('');
+       },
+
+
+       renderBgCellHtml: function(date, otherAttrs) {
+               var view = this.view;
+               var classes = this.getDayClasses(date);
+
+               classes.unshift('fc-day', view.widgetContentClass);
+
+               return '<td class="' + classes.join(' ') + '"' +
+                       ' data-date="' + date.format('YYYY-MM-DD') + '"' + // if date has a time, won't format it
+                       (otherAttrs ?
+                               ' ' + otherAttrs :
+                               '') +
+                       '></td>';
+       },
+
+
+       /* Generic
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Generates the default HTML intro for any row. User classes should override
+       renderIntroHtml: function() {
+       },
+
+
+       // TODO: a generic method for dealing with <tr>, RTL, intro
+       // when increment internalApiVersion
+       // wrapTr (scheduler)
+
+
+       /* Utils
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Applies the generic "intro" and "outro" HTML to the given cells.
+       // Intro means the leftmost cell when the calendar is LTR and the rightmost cell when RTL. Vice-versa for outro.
+       bookendCells: function(trEl) {
+               var introHtml = this.renderIntroHtml();
+
+               if (introHtml) {
+                       if (this.isRTL) {
+                               trEl.append(introHtml);
+                       }
+                       else {
+                               trEl.prepend(introHtml);
+                       }
+               }
+       }
+
+};
+
+;;
+
+/* A component that renders a grid of whole-days that runs horizontally. There can be multiple rows, one per week.
+----------------------------------------------------------------------------------------------------------------------*/
+
+var DayGrid = FC.DayGrid = Grid.extend(DayTableMixin, {
+
+       numbersVisible: false, // should render a row for day/week numbers? set by outside view. TODO: make internal
+       bottomCoordPadding: 0, // hack for extending the hit area for the last row of the coordinate grid
+
+       rowEls: null, // set of fake row elements
+       cellEls: null, // set of whole-day elements comprising the row's background
+       helperEls: null, // set of cell skeleton elements for rendering the mock event "helper"
+
+       rowCoordCache: null,
+       colCoordCache: null,
+
+
+       // Renders the rows and columns into the component's `this.el`, which should already be assigned.
+       // isRigid determins whether the individual rows should ignore the contents and be a constant height.
+       // Relies on the view's colCnt and rowCnt. In the future, this component should probably be self-sufficient.
+       renderDates: function(isRigid) {
+               var view = this.view;
+               var rowCnt = this.rowCnt;
+               var colCnt = this.colCnt;
+               var html = '';
+               var row;
+               var col;
+
+               for (row = 0; row < rowCnt; row++) {
+                       html += this.renderDayRowHtml(row, isRigid);
+               }
+               this.el.html(html);
+
+               this.rowEls = this.el.find('.fc-row');
+               this.cellEls = this.el.find('.fc-day');
+
+               this.rowCoordCache = new CoordCache({
+                       els: this.rowEls,
+                       isVertical: true
+               });
+               this.colCoordCache = new CoordCache({
+                       els: this.cellEls.slice(0, this.colCnt), // only the first row
+                       isHorizontal: true
+               });
+
+               // trigger dayRender with each cell's element
+               for (row = 0; row < rowCnt; row++) {
+                       for (col = 0; col < colCnt; col++) {
+                               view.publiclyTrigger(
+                                       'dayRender',
+                                       null,
+                                       this.getCellDate(row, col),
+                                       this.getCellEl(row, col)
+                               );
+                       }
+               }
+       },
+
+
+       unrenderDates: function() {
+               this.removeSegPopover();
+       },
+
+
+       renderBusinessHours: function() {
+               var segs = this.buildBusinessHourSegs(true); // wholeDay=true
+               this.renderFill('businessHours', segs, 'bgevent');
+       },
+
+
+       unrenderBusinessHours: function() {
+               this.unrenderFill('businessHours');
+       },
+
+
+       // Generates the HTML for a single row, which is a div that wraps a table.
+       // `row` is the row number.
+       renderDayRowHtml: function(row, isRigid) {
+               var view = this.view;
+               var classes = [ 'fc-row', 'fc-week', view.widgetContentClass ];
+
+               if (isRigid) {
+                       classes.push('fc-rigid');
+               }
+
+               return '' +
+                       '<div class="' + classes.join(' ') + '">' +
+                               '<div class="fc-bg">' +
+                                       '<table>' +
+                                               this.renderBgTrHtml(row) +
+                                       '</table>' +
+                               '</div>' +
+                               '<div class="fc-content-skeleton">' +
+                                       '<table>' +
+                                               (this.numbersVisible ?
+                                                       '<thead>' +
+                                                               this.renderNumberTrHtml(row) +
+                                                       '</thead>' :
+                                                       ''
+                                                       ) +
+                                       '</table>' +
+                               '</div>' +
+                       '</div>';
+       },
+
+
+       /* Grid Number Rendering
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderNumberTrHtml: function(row) {
+               return '' +
+                       '<tr>' +
+                               (this.isRTL ? '' : this.renderNumberIntroHtml(row)) +
+                               this.renderNumberCellsHtml(row) +
+                               (this.isRTL ? this.renderNumberIntroHtml(row) : '') +
+                       '</tr>';
+       },
+
+
+       renderNumberIntroHtml: function(row) {
+               return this.renderIntroHtml();
+       },
+
+
+       renderNumberCellsHtml: function(row) {
+               var htmls = [];
+               var col, date;
+
+               for (col = 0; col < this.colCnt; col++) {
+                       date = this.getCellDate(row, col);
+                       htmls.push(this.renderNumberCellHtml(date));
+               }
+
+               return htmls.join('');
+       },
+
+
+       // Generates the HTML for the <td>s of the "number" row in the DayGrid's content skeleton.
+       // The number row will only exist if either day numbers or week numbers are turned on.
+       renderNumberCellHtml: function(date) {
+               var html = '';
+               var classes;
+               var weekCalcFirstDoW;
+
+               if (!this.view.dayNumbersVisible && !this.view.cellWeekNumbersVisible) {
+                       // no numbers in day cell (week number must be along the side)
+                       return '<td/>'; //  will create an empty space above events :(
+               }
+
+               classes = this.getDayClasses(date);
+               classes.unshift('fc-day-top');
+
+               if (this.view.cellWeekNumbersVisible) {
+                       // To determine the day of week number change under ISO, we cannot
+                       // rely on moment.js methods such as firstDayOfWeek() or weekday(),
+                       // because they rely on the locale's dow (possibly overridden by
+                       // our firstDay option), which may not be Monday. We cannot change
+                       // dow, because that would affect the calendar start day as well.
+                       if (date._locale._fullCalendar_weekCalc === 'ISO') {
+                               weekCalcFirstDoW = 1;  // Monday by ISO 8601 definition
+                       }
+                       else {
+                               weekCalcFirstDoW = date._locale.firstDayOfWeek();
+                       }
+               }
+
+               html += '<td class="' + classes.join(' ') + '" data-date="' + date.format() + '">';
+
+               if (this.view.cellWeekNumbersVisible && (date.day() == weekCalcFirstDoW)) {
+                       html += this.view.buildGotoAnchorHtml(
+                               { date: date, type: 'week' },
+                               { 'class': 'fc-week-number' },
+                               date.format('w') // inner HTML
+                       );
+               }
+
+               if (this.view.dayNumbersVisible) {
+                       html += this.view.buildGotoAnchorHtml(
+                               date,
+                               { 'class': 'fc-day-number' },
+                               date.date() // inner HTML
+                       );
+               }
+
+               html += '</td>';
+
+               return html;
+       },
+
+
+       /* Options
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Computes a default event time formatting string if `timeFormat` is not explicitly defined
+       computeEventTimeFormat: function() {
+               return this.view.opt('extraSmallTimeFormat'); // like "6p" or "6:30p"
+       },
+
+
+       // Computes a default `displayEventEnd` value if one is not expliclty defined
+       computeDisplayEventEnd: function() {
+               return this.colCnt == 1; // we'll likely have space if there's only one day
+       },
+
+
+       /* Dates
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       rangeUpdated: function() {
+               this.updateDayTable();
+       },
+
+
+       // Slices up the given span (unzoned start/end with other misc data) into an array of segments
+       spanToSegs: function(span) {
+               var segs = this.sliceRangeByRow(span);
+               var i, seg;
+
+               for (i = 0; i < segs.length; i++) {
+                       seg = segs[i];
+                       if (this.isRTL) {
+                               seg.leftCol = this.daysPerRow - 1 - seg.lastRowDayIndex;
+                               seg.rightCol = this.daysPerRow - 1 - seg.firstRowDayIndex;
+                       }
+                       else {
+                               seg.leftCol = seg.firstRowDayIndex;
+                               seg.rightCol = seg.lastRowDayIndex;
+                       }
+               }
+
+               return segs;
+       },
+
+
+       /* Hit System
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       prepareHits: function() {
+               this.colCoordCache.build();
+               this.rowCoordCache.build();
+               this.rowCoordCache.bottoms[this.rowCnt - 1] += this.bottomCoordPadding; // hack
+       },
+
+
+       releaseHits: function() {
+               this.colCoordCache.clear();
+               this.rowCoordCache.clear();
+       },
+
+
+       queryHit: function(leftOffset, topOffset) {
+               if (this.colCoordCache.isLeftInBounds(leftOffset) && this.rowCoordCache.isTopInBounds(topOffset)) {
+                       var col = this.colCoordCache.getHorizontalIndex(leftOffset);
+                       var row = this.rowCoordCache.getVerticalIndex(topOffset);
+
+                       if (row != null && col != null) {
+                               return this.getCellHit(row, col);
+                       }
+               }
+       },
+
+
+       getHitSpan: function(hit) {
+               return this.getCellRange(hit.row, hit.col);
+       },
+
+
+       getHitEl: function(hit) {
+               return this.getCellEl(hit.row, hit.col);
+       },
+
+
+       /* Cell System
+       ------------------------------------------------------------------------------------------------------------------*/
+       // FYI: the first column is the leftmost column, regardless of date
+
+
+       getCellHit: function(row, col) {
+               return {
+                       row: row,
+                       col: col,
+                       component: this, // needed unfortunately :(
+                       left: this.colCoordCache.getLeftOffset(col),
+                       right: this.colCoordCache.getRightOffset(col),
+                       top: this.rowCoordCache.getTopOffset(row),
+                       bottom: this.rowCoordCache.getBottomOffset(row)
+               };
+       },
+
+
+       getCellEl: function(row, col) {
+               return this.cellEls.eq(row * this.colCnt + col);
+       },
+
+
+       /* Event Drag Visualization
+       ------------------------------------------------------------------------------------------------------------------*/
+       // TODO: move to DayGrid.event, similar to what we did with Grid's drag methods
+
+
+       // Renders a visual indication of an event or external element being dragged.
+       // `eventLocation` has zoned start and end (optional)
+       renderDrag: function(eventLocation, seg) {
+
+               // always render a highlight underneath
+               this.renderHighlight(this.eventToSpan(eventLocation));
+
+               // if a segment from the same calendar but another component is being dragged, render a helper event
+               if (seg && seg.component !== this) {
+                       return this.renderEventLocationHelper(eventLocation, seg); // returns mock event elements
+               }
+       },
+
+
+       // Unrenders any visual indication of a hovering event
+       unrenderDrag: function() {
+               this.unrenderHighlight();
+               this.unrenderHelper();
+       },
+
+
+       /* Event Resize Visualization
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a visual indication of an event being resized
+       renderEventResize: function(eventLocation, seg) {
+               this.renderHighlight(this.eventToSpan(eventLocation));
+               return this.renderEventLocationHelper(eventLocation, seg); // returns mock event elements
+       },
+
+
+       // Unrenders a visual indication of an event being resized
+       unrenderEventResize: function() {
+               this.unrenderHighlight();
+               this.unrenderHelper();
+       },
+
+
+       /* Event Helper
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a mock "helper" event. `sourceSeg` is the associated internal segment object. It can be null.
+       renderHelper: function(event, sourceSeg) {
+               var helperNodes = [];
+               var segs = this.eventToSegs(event);
+               var rowStructs;
+
+               segs = this.renderFgSegEls(segs); // assigns each seg's el and returns a subset of segs that were rendered
+               rowStructs = this.renderSegRows(segs);
+
+               // inject each new event skeleton into each associated row
+               this.rowEls.each(function(row, rowNode) {
+                       var rowEl = $(rowNode); // the .fc-row
+                       var skeletonEl = $('<div class="fc-helper-skeleton"><table/></div>'); // will be absolutely positioned
+                       var skeletonTop;
+
+                       // If there is an original segment, match the top position. Otherwise, put it at the row's top level
+                       if (sourceSeg && sourceSeg.row === row) {
+                               skeletonTop = sourceSeg.el.position().top;
+                       }
+                       else {
+                               skeletonTop = rowEl.find('.fc-content-skeleton tbody').position().top;
+                       }
+
+                       skeletonEl.css('top', skeletonTop)
+                               .find('table')
+                                       .append(rowStructs[row].tbodyEl);
+
+                       rowEl.append(skeletonEl);
+                       helperNodes.push(skeletonEl[0]);
+               });
+
+               return ( // must return the elements rendered
+                       this.helperEls = $(helperNodes) // array -> jQuery set
+               );
+       },
+
+
+       // Unrenders any visual indication of a mock helper event
+       unrenderHelper: function() {
+               if (this.helperEls) {
+                       this.helperEls.remove();
+                       this.helperEls = null;
+               }
+       },
+
+
+       /* Fill System (highlight, background events, business hours)
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       fillSegTag: 'td', // override the default tag name
+
+
+       // Renders a set of rectangles over the given segments of days.
+       // Only returns segments that successfully rendered.
+       renderFill: function(type, segs, className) {
+               var nodes = [];
+               var i, seg;
+               var skeletonEl;
+
+               segs = this.renderFillSegEls(type, segs); // assignes `.el` to each seg. returns successfully rendered segs
+
+               for (i = 0; i < segs.length; i++) {
+                       seg = segs[i];
+                       skeletonEl = this.renderFillRow(type, seg, className);
+                       this.rowEls.eq(seg.row).append(skeletonEl);
+                       nodes.push(skeletonEl[0]);
+               }
+
+               this.elsByFill[type] = $(nodes);
+
+               return segs;
+       },
+
+
+       // Generates the HTML needed for one row of a fill. Requires the seg's el to be rendered.
+       renderFillRow: function(type, seg, className) {
+               var colCnt = this.colCnt;
+               var startCol = seg.leftCol;
+               var endCol = seg.rightCol + 1;
+               var skeletonEl;
+               var trEl;
+
+               className = className || type.toLowerCase();
+
+               skeletonEl = $(
+                       '<div class="fc-' + className + '-skeleton">' +
+                               '<table><tr/></table>' +
+                       '</div>'
+               );
+               trEl = skeletonEl.find('tr');
+
+               if (startCol > 0) {
+                       trEl.append('<td colspan="' + startCol + '"/>');
+               }
+
+               trEl.append(
+                       seg.el.attr('colspan', endCol - startCol)
+               );
+
+               if (endCol < colCnt) {
+                       trEl.append('<td colspan="' + (colCnt - endCol) + '"/>');
+               }
+
+               this.bookendCells(trEl);
+
+               return skeletonEl;
+       }
+
+});
+
+;;
+
+/* Event-rendering methods for the DayGrid class
+----------------------------------------------------------------------------------------------------------------------*/
+
+DayGrid.mixin({
+
+       rowStructs: null, // an array of objects, each holding information about a row's foreground event-rendering
+
+
+       // Unrenders all events currently rendered on the grid
+       unrenderEvents: function() {
+               this.removeSegPopover(); // removes the "more.." events popover
+               Grid.prototype.unrenderEvents.apply(this, arguments); // calls the super-method
+       },
+
+
+       // Retrieves all rendered segment objects currently rendered on the grid
+       getEventSegs: function() {
+               return Grid.prototype.getEventSegs.call(this) // get the segments from the super-method
+                       .concat(this.popoverSegs || []); // append the segments from the "more..." popover
+       },
+
+
+       // Renders the given background event segments onto the grid
+       renderBgSegs: function(segs) {
+
+               // don't render timed background events
+               var allDaySegs = $.grep(segs, function(seg) {
+                       return seg.event.allDay;
+               });
+
+               return Grid.prototype.renderBgSegs.call(this, allDaySegs); // call the super-method
+       },
+
+
+       // Renders the given foreground event segments onto the grid
+       renderFgSegs: function(segs) {
+               var rowStructs;
+
+               // render an `.el` on each seg
+               // returns a subset of the segs. segs that were actually rendered
+               segs = this.renderFgSegEls(segs);
+
+               rowStructs = this.rowStructs = this.renderSegRows(segs);
+
+               // append to each row's content skeleton
+               this.rowEls.each(function(i, rowNode) {
+                       $(rowNode).find('.fc-content-skeleton > table').append(
+                               rowStructs[i].tbodyEl
+                       );
+               });
+
+               return segs; // return only the segs that were actually rendered
+       },
+
+
+       // Unrenders all currently rendered foreground event segments
+       unrenderFgSegs: function() {
+               var rowStructs = this.rowStructs || [];
+               var rowStruct;
+
+               while ((rowStruct = rowStructs.pop())) {
+                       rowStruct.tbodyEl.remove();
+               }
+
+               this.rowStructs = null;
+       },
+
+
+       // Uses the given events array to generate <tbody> elements that should be appended to each row's content skeleton.
+       // Returns an array of rowStruct objects (see the bottom of `renderSegRow`).
+       // PRECONDITION: each segment shoud already have a rendered and assigned `.el`
+       renderSegRows: function(segs) {
+               var rowStructs = [];
+               var segRows;
+               var row;
+
+               segRows = this.groupSegRows(segs); // group into nested arrays
+
+               // iterate each row of segment groupings
+               for (row = 0; row < segRows.length; row++) {
+                       rowStructs.push(
+                               this.renderSegRow(row, segRows[row])
+                       );
+               }
+
+               return rowStructs;
+       },
+
+
+       // Builds the HTML to be used for the default element for an individual segment
+       fgSegHtml: function(seg, disableResizing) {
+               var view = this.view;
+               var event = seg.event;
+               var isDraggable = view.isEventDraggable(event);
+               var isResizableFromStart = !disableResizing && event.allDay &&
+                       seg.isStart && view.isEventResizableFromStart(event);
+               var isResizableFromEnd = !disableResizing && event.allDay &&
+                       seg.isEnd && view.isEventResizableFromEnd(event);
+               var classes = this.getSegClasses(seg, isDraggable, isResizableFromStart || isResizableFromEnd);
+               var skinCss = cssToStr(this.getSegSkinCss(seg));
+               var timeHtml = '';
+               var timeText;
+               var titleHtml;
+
+               classes.unshift('fc-day-grid-event', 'fc-h-event');
+
+               // Only display a timed events time if it is the starting segment
+               if (seg.isStart) {
+                       timeText = this.getEventTimeText(event);
+                       if (timeText) {
+                               timeHtml = '<span class="fc-time">' + htmlEscape(timeText) + '</span>';
+                       }
+               }
+
+               titleHtml =
+                       '<span class="fc-title">' +
+                               (htmlEscape(event.title || '') || '&nbsp;') + // we always want one line of height
+                       '</span>';
+               
+               return '<a class="' + classes.join(' ') + '"' +
+                               (event.url ?
+                                       ' href="' + htmlEscape(event.url) + '"' :
+                                       ''
+                                       ) +
+                               (skinCss ?
+                                       ' style="' + skinCss + '"' :
+                                       ''
+                                       ) +
+                       '>' +
+                               '<div class="fc-content">' +
+                                       (this.isRTL ?
+                                               titleHtml + ' ' + timeHtml : // put a natural space in between
+                                               timeHtml + ' ' + titleHtml   //
+                                               ) +
+                               '</div>' +
+                               (isResizableFromStart ?
+                                       '<div class="fc-resizer fc-start-resizer" />' :
+                                       ''
+                                       ) +
+                               (isResizableFromEnd ?
+                                       '<div class="fc-resizer fc-end-resizer" />' :
+                                       ''
+                                       ) +
+                       '</a>';
+       },
+
+
+       // Given a row # and an array of segments all in the same row, render a <tbody> element, a skeleton that contains
+       // the segments. Returns object with a bunch of internal data about how the render was calculated.
+       // NOTE: modifies rowSegs
+       renderSegRow: function(row, rowSegs) {
+               var colCnt = this.colCnt;
+               var segLevels = this.buildSegLevels(rowSegs); // group into sub-arrays of levels
+               var levelCnt = Math.max(1, segLevels.length); // ensure at least one level
+               var tbody = $('<tbody/>');
+               var segMatrix = []; // lookup for which segments are rendered into which level+col cells
+               var cellMatrix = []; // lookup for all <td> elements of the level+col matrix
+               var loneCellMatrix = []; // lookup for <td> elements that only take up a single column
+               var i, levelSegs;
+               var col;
+               var tr;
+               var j, seg;
+               var td;
+
+               // populates empty cells from the current column (`col`) to `endCol`
+               function emptyCellsUntil(endCol) {
+                       while (col < endCol) {
+                               // try to grab a cell from the level above and extend its rowspan. otherwise, create a fresh cell
+                               td = (loneCellMatrix[i - 1] || [])[col];
+                               if (td) {
+                                       td.attr(
+                                               'rowspan',
+                                               parseInt(td.attr('rowspan') || 1, 10) + 1
+                                       );
+                               }
+                               else {
+                                       td = $('<td/>');
+                                       tr.append(td);
+                               }
+                               cellMatrix[i][col] = td;
+                               loneCellMatrix[i][col] = td;
+                               col++;
+                       }
+               }
+
+               for (i = 0; i < levelCnt; i++) { // iterate through all levels
+                       levelSegs = segLevels[i];
+                       col = 0;
+                       tr = $('<tr/>');
+
+                       segMatrix.push([]);
+                       cellMatrix.push([]);
+                       loneCellMatrix.push([]);
+
+                       // levelCnt might be 1 even though there are no actual levels. protect against this.
+                       // this single empty row is useful for styling.
+                       if (levelSegs) {
+                               for (j = 0; j < levelSegs.length; j++) { // iterate through segments in level
+                                       seg = levelSegs[j];
+
+                                       emptyCellsUntil(seg.leftCol);
+
+                                       // create a container that occupies or more columns. append the event element.
+                                       td = $('<td class="fc-event-container"/>').append(seg.el);
+                                       if (seg.leftCol != seg.rightCol) {
+                                               td.attr('colspan', seg.rightCol - seg.leftCol + 1);
+                                       }
+                                       else { // a single-column segment
+                                               loneCellMatrix[i][col] = td;
+                                       }
+
+                                       while (col <= seg.rightCol) {
+                                               cellMatrix[i][col] = td;
+                                               segMatrix[i][col] = seg;
+                                               col++;
+                                       }
+
+                                       tr.append(td);
+                               }
+                       }
+
+                       emptyCellsUntil(colCnt); // finish off the row
+                       this.bookendCells(tr);
+                       tbody.append(tr);
+               }
+
+               return { // a "rowStruct"
+                       row: row, // the row number
+                       tbodyEl: tbody,
+                       cellMatrix: cellMatrix,
+                       segMatrix: segMatrix,
+                       segLevels: segLevels,
+                       segs: rowSegs
+               };
+       },
+
+
+       // Stacks a flat array of segments, which are all assumed to be in the same row, into subarrays of vertical levels.
+       // NOTE: modifies segs
+       buildSegLevels: function(segs) {
+               var levels = [];
+               var i, seg;
+               var j;
+
+               // Give preference to elements with certain criteria, so they have
+               // a chance to be closer to the top.
+               this.sortEventSegs(segs);
+               
+               for (i = 0; i < segs.length; i++) {
+                       seg = segs[i];
+
+                       // loop through levels, starting with the topmost, until the segment doesn't collide with other segments
+                       for (j = 0; j < levels.length; j++) {
+                               if (!isDaySegCollision(seg, levels[j])) {
+                                       break;
+                               }
+                       }
+                       // `j` now holds the desired subrow index
+                       seg.level = j;
+
+                       // create new level array if needed and append segment
+                       (levels[j] || (levels[j] = [])).push(seg);
+               }
+
+               // order segments left-to-right. very important if calendar is RTL
+               for (j = 0; j < levels.length; j++) {
+                       levels[j].sort(compareDaySegCols);
+               }
+
+               return levels;
+       },
+
+
+       // Given a flat array of segments, return an array of sub-arrays, grouped by each segment's row
+       groupSegRows: function(segs) {
+               var segRows = [];
+               var i;
+
+               for (i = 0; i < this.rowCnt; i++) {
+                       segRows.push([]);
+               }
+
+               for (i = 0; i < segs.length; i++) {
+                       segRows[segs[i].row].push(segs[i]);
+               }
+
+               return segRows;
+       }
+
+});
+
+
+// Computes whether two segments' columns collide. They are assumed to be in the same row.
+function isDaySegCollision(seg, otherSegs) {
+       var i, otherSeg;
+
+       for (i = 0; i < otherSegs.length; i++) {
+               otherSeg = otherSegs[i];
+
+               if (
+                       otherSeg.leftCol <= seg.rightCol &&
+                       otherSeg.rightCol >= seg.leftCol
+               ) {
+                       return true;
+               }
+       }
+
+       return false;
+}
+
+
+// A cmp function for determining the leftmost event
+function compareDaySegCols(a, b) {
+       return a.leftCol - b.leftCol;
+}
+
+;;
+
+/* Methods relate to limiting the number events for a given day on a DayGrid
+----------------------------------------------------------------------------------------------------------------------*/
+// NOTE: all the segs being passed around in here are foreground segs
+
+DayGrid.mixin({
+
+       segPopover: null, // the Popover that holds events that can't fit in a cell. null when not visible
+       popoverSegs: null, // an array of segment objects that the segPopover holds. null when not visible
+
+
+       removeSegPopover: function() {
+               if (this.segPopover) {
+                       this.segPopover.hide(); // in handler, will call segPopover's removeElement
+               }
+       },
+
+
+       // Limits the number of "levels" (vertically stacking layers of events) for each row of the grid.
+       // `levelLimit` can be false (don't limit), a number, or true (should be computed).
+       limitRows: function(levelLimit) {
+               var rowStructs = this.rowStructs || [];
+               var row; // row #
+               var rowLevelLimit;
+
+               for (row = 0; row < rowStructs.length; row++) {
+                       this.unlimitRow(row);
+
+                       if (!levelLimit) {
+                               rowLevelLimit = false;
+                       }
+                       else if (typeof levelLimit === 'number') {
+                               rowLevelLimit = levelLimit;
+                       }
+                       else {
+                               rowLevelLimit = this.computeRowLevelLimit(row);
+                       }
+
+                       if (rowLevelLimit !== false) {
+                               this.limitRow(row, rowLevelLimit);
+                       }
+               }
+       },
+
+
+       // Computes the number of levels a row will accomodate without going outside its bounds.
+       // Assumes the row is "rigid" (maintains a constant height regardless of what is inside).
+       // `row` is the row number.
+       computeRowLevelLimit: function(row) {
+               var rowEl = this.rowEls.eq(row); // the containing "fake" row div
+               var rowHeight = rowEl.height(); // TODO: cache somehow?
+               var trEls = this.rowStructs[row].tbodyEl.children();
+               var i, trEl;
+               var trHeight;
+
+               function iterInnerHeights(i, childNode) {
+                       trHeight = Math.max(trHeight, $(childNode).outerHeight());
+               }
+
+               // Reveal one level <tr> at a time and stop when we find one out of bounds
+               for (i = 0; i < trEls.length; i++) {
+                       trEl = trEls.eq(i).removeClass('fc-limited'); // reset to original state (reveal)
+
+                       // with rowspans>1 and IE8, trEl.outerHeight() would return the height of the largest cell,
+                       // so instead, find the tallest inner content element.
+                       trHeight = 0;
+                       trEl.find('> td > :first-child').each(iterInnerHeights);
+
+                       if (trEl.position().top + trHeight > rowHeight) {
+                               return i;
+                       }
+               }
+
+               return false; // should not limit at all
+       },
+
+
+       // Limits the given grid row to the maximum number of levels and injects "more" links if necessary.
+       // `row` is the row number.
+       // `levelLimit` is a number for the maximum (inclusive) number of levels allowed.
+       limitRow: function(row, levelLimit) {
+               var _this = this;
+               var rowStruct = this.rowStructs[row];
+               var moreNodes = []; // array of "more" <a> links and <td> DOM nodes
+               var col = 0; // col #, left-to-right (not chronologically)
+               var levelSegs; // array of segment objects in the last allowable level, ordered left-to-right
+               var cellMatrix; // a matrix (by level, then column) of all <td> jQuery elements in the row
+               var limitedNodes; // array of temporarily hidden level <tr> and segment <td> DOM nodes
+               var i, seg;
+               var segsBelow; // array of segment objects below `seg` in the current `col`
+               var totalSegsBelow; // total number of segments below `seg` in any of the columns `seg` occupies
+               var colSegsBelow; // array of segment arrays, below seg, one for each column (offset from segs's first column)
+               var td, rowspan;
+               var segMoreNodes; // array of "more" <td> cells that will stand-in for the current seg's cell
+               var j;
+               var moreTd, moreWrap, moreLink;
+
+               // Iterates through empty level cells and places "more" links inside if need be
+               function emptyCellsUntil(endCol) { // goes from current `col` to `endCol`
+                       while (col < endCol) {
+                               segsBelow = _this.getCellSegs(row, col, levelLimit);
+                               if (segsBelow.length) {
+                                       td = cellMatrix[levelLimit - 1][col];
+                                       moreLink = _this.renderMoreLink(row, col, segsBelow);
+                                       moreWrap = $('<div/>').append(moreLink);
+                                       td.append(moreWrap);
+                                       moreNodes.push(moreWrap[0]);
+                               }
+                               col++;
+                       }
+               }
+
+               if (levelLimit && levelLimit < rowStruct.segLevels.length) { // is it actually over the limit?
+                       levelSegs = rowStruct.segLevels[levelLimit - 1];
+                       cellMatrix = rowStruct.cellMatrix;
+
+                       limitedNodes = rowStruct.tbodyEl.children().slice(levelLimit) // get level <tr> elements past the limit
+                               .addClass('fc-limited').get(); // hide elements and get a simple DOM-nodes array
+
+                       // iterate though segments in the last allowable level
+                       for (i = 0; i < levelSegs.length; i++) {
+                               seg = levelSegs[i];
+                               emptyCellsUntil(seg.leftCol); // process empty cells before the segment
+
+                               // determine *all* segments below `seg` that occupy the same columns
+                               colSegsBelow = [];
+                               totalSegsBelow = 0;
+                               while (col <= seg.rightCol) {
+                                       segsBelow = this.getCellSegs(row, col, levelLimit);
+                                       colSegsBelow.push(segsBelow);
+                                       totalSegsBelow += segsBelow.length;
+                                       col++;
+                               }
+
+                               if (totalSegsBelow) { // do we need to replace this segment with one or many "more" links?
+                                       td = cellMatrix[levelLimit - 1][seg.leftCol]; // the segment's parent cell
+                                       rowspan = td.attr('rowspan') || 1;
+                                       segMoreNodes = [];
+
+                                       // make a replacement <td> for each column the segment occupies. will be one for each colspan
+                                       for (j = 0; j < colSegsBelow.length; j++) {
+                                               moreTd = $('<td class="fc-more-cell"/>').attr('rowspan', rowspan);
+                                               segsBelow = colSegsBelow[j];
+                                               moreLink = this.renderMoreLink(
+                                                       row,
+                                                       seg.leftCol + j,
+                                                       [ seg ].concat(segsBelow) // count seg as hidden too
+                                               );
+                                               moreWrap = $('<div/>').append(moreLink);
+                                               moreTd.append(moreWrap);
+                                               segMoreNodes.push(moreTd[0]);
+                                               moreNodes.push(moreTd[0]);
+                                       }
+
+                                       td.addClass('fc-limited').after($(segMoreNodes)); // hide original <td> and inject replacements
+                                       limitedNodes.push(td[0]);
+                               }
+                       }
+
+                       emptyCellsUntil(this.colCnt); // finish off the level
+                       rowStruct.moreEls = $(moreNodes); // for easy undoing later
+                       rowStruct.limitedEls = $(limitedNodes); // for easy undoing later
+               }
+       },
+
+
+       // Reveals all levels and removes all "more"-related elements for a grid's row.
+       // `row` is a row number.
+       unlimitRow: function(row) {
+               var rowStruct = this.rowStructs[row];
+
+               if (rowStruct.moreEls) {
+                       rowStruct.moreEls.remove();
+                       rowStruct.moreEls = null;
+               }
+
+               if (rowStruct.limitedEls) {
+                       rowStruct.limitedEls.removeClass('fc-limited');
+                       rowStruct.limitedEls = null;
+               }
+       },
+
+
+       // Renders an <a> element that represents hidden event element for a cell.
+       // Responsible for attaching click handler as well.
+       renderMoreLink: function(row, col, hiddenSegs) {
+               var _this = this;
+               var view = this.view;
+
+               return $('<a class="fc-more"/>')
+                       .text(
+                               this.getMoreLinkText(hiddenSegs.length)
+                       )
+                       .on('click', function(ev) {
+                               var clickOption = view.opt('eventLimitClick');
+                               var date = _this.getCellDate(row, col);
+                               var moreEl = $(this);
+                               var dayEl = _this.getCellEl(row, col);
+                               var allSegs = _this.getCellSegs(row, col);
+
+                               // rescope the segments to be within the cell's date
+                               var reslicedAllSegs = _this.resliceDaySegs(allSegs, date);
+                               var reslicedHiddenSegs = _this.resliceDaySegs(hiddenSegs, date);
+
+                               if (typeof clickOption === 'function') {
+                                       // the returned value can be an atomic option
+                                       clickOption = view.publiclyTrigger('eventLimitClick', null, {
+                                               date: date,
+                                               dayEl: dayEl,
+                                               moreEl: moreEl,
+                                               segs: reslicedAllSegs,
+                                               hiddenSegs: reslicedHiddenSegs
+                                       }, ev);
+                               }
+
+                               if (clickOption === 'popover') {
+                                       _this.showSegPopover(row, col, moreEl, reslicedAllSegs);
+                               }
+                               else if (typeof clickOption === 'string') { // a view name
+                                       view.calendar.zoomTo(date, clickOption);
+                               }
+                       });
+       },
+
+
+       // Reveals the popover that displays all events within a cell
+       showSegPopover: function(row, col, moreLink, segs) {
+               var _this = this;
+               var view = this.view;
+               var moreWrap = moreLink.parent(); // the <div> wrapper around the <a>
+               var topEl; // the element we want to match the top coordinate of
+               var options;
+
+               if (this.rowCnt == 1) {
+                       topEl = view.el; // will cause the popover to cover any sort of header
+               }
+               else {
+                       topEl = this.rowEls.eq(row); // will align with top of row
+               }
+
+               options = {
+                       className: 'fc-more-popover',
+                       content: this.renderSegPopoverContent(row, col, segs),
+                       parentEl: this.view.el, // attach to root of view. guarantees outside of scrollbars.
+                       top: topEl.offset().top,
+                       autoHide: true, // when the user clicks elsewhere, hide the popover
+                       viewportConstrain: view.opt('popoverViewportConstrain'),
+                       hide: function() {
+                               // kill everything when the popover is hidden
+                               // notify events to be removed
+                               if (_this.popoverSegs) {
+                                       var seg;
+                                       for (var i = 0; i < _this.popoverSegs.length; ++i) {
+                                               seg = _this.popoverSegs[i];
+                                               view.publiclyTrigger('eventDestroy', seg.event, seg.event, seg.el);
+                                       }
+                               }
+                               _this.segPopover.removeElement();
+                               _this.segPopover = null;
+                               _this.popoverSegs = null;
+                       }
+               };
+
+               // Determine horizontal coordinate.
+               // We use the moreWrap instead of the <td> to avoid border confusion.
+               if (this.isRTL) {
+                       options.right = moreWrap.offset().left + moreWrap.outerWidth() + 1; // +1 to be over cell border
+               }
+               else {
+                       options.left = moreWrap.offset().left - 1; // -1 to be over cell border
+               }
+
+               this.segPopover = new Popover(options);
+               this.segPopover.show();
+
+               // the popover doesn't live within the grid's container element, and thus won't get the event
+               // delegated-handlers for free. attach event-related handlers to the popover.
+               this.bindSegHandlersToEl(this.segPopover.el);
+       },
+
+
+       // Builds the inner DOM contents of the segment popover
+       renderSegPopoverContent: function(row, col, segs) {
+               var view = this.view;
+               var isTheme = view.opt('theme');
+               var title = this.getCellDate(row, col).format(view.opt('dayPopoverFormat'));
+               var content = $(
+                       '<div class="fc-header ' + view.widgetHeaderClass + '">' +
+                               '<span class="fc-close ' +
+                                       (isTheme ? 'ui-icon ui-icon-closethick' : 'fc-icon fc-icon-x') +
+                               '"></span>' +
+                               '<span class="fc-title">' +
+                                       htmlEscape(title) +
+                               '</span>' +
+                               '<div class="fc-clear"/>' +
+                       '</div>' +
+                       '<div class="fc-body ' + view.widgetContentClass + '">' +
+                               '<div class="fc-event-container"></div>' +
+                       '</div>'
+               );
+               var segContainer = content.find('.fc-event-container');
+               var i;
+
+               // render each seg's `el` and only return the visible segs
+               segs = this.renderFgSegEls(segs, true); // disableResizing=true
+               this.popoverSegs = segs;
+
+               for (i = 0; i < segs.length; i++) {
+
+                       // because segments in the popover are not part of a grid coordinate system, provide a hint to any
+                       // grids that want to do drag-n-drop about which cell it came from
+                       this.hitsNeeded();
+                       segs[i].hit = this.getCellHit(row, col);
+                       this.hitsNotNeeded();
+
+                       segContainer.append(segs[i].el);
+               }
+
+               return content;
+       },
+
+
+       // Given the events within an array of segment objects, reslice them to be in a single day
+       resliceDaySegs: function(segs, dayDate) {
+
+               // build an array of the original events
+               var events = $.map(segs, function(seg) {
+                       return seg.event;
+               });
+
+               var dayStart = dayDate.clone();
+               var dayEnd = dayStart.clone().add(1, 'days');
+               var dayRange = { start: dayStart, end: dayEnd };
+
+               // slice the events with a custom slicing function
+               segs = this.eventsToSegs(
+                       events,
+                       function(range) {
+                               var seg = intersectRanges(range, dayRange); // undefind if no intersection
+                               return seg ? [ seg ] : []; // must return an array of segments
+                       }
+               );
+
+               // force an order because eventsToSegs doesn't guarantee one
+               this.sortEventSegs(segs);
+
+               return segs;
+       },
+
+
+       // Generates the text that should be inside a "more" link, given the number of events it represents
+       getMoreLinkText: function(num) {
+               var opt = this.view.opt('eventLimitText');
+
+               if (typeof opt === 'function') {
+                       return opt(num);
+               }
+               else {
+                       return '+' + num + ' ' + opt;
+               }
+       },
+
+
+       // Returns segments within a given cell.
+       // If `startLevel` is specified, returns only events including and below that level. Otherwise returns all segs.
+       getCellSegs: function(row, col, startLevel) {
+               var segMatrix = this.rowStructs[row].segMatrix;
+               var level = startLevel || 0;
+               var segs = [];
+               var seg;
+
+               while (level < segMatrix.length) {
+                       seg = segMatrix[level][col];
+                       if (seg) {
+                               segs.push(seg);
+                       }
+                       level++;
+               }
+
+               return segs;
+       }
+
+});
+
+;;
+
+/* A component that renders one or more columns of vertical time slots
+----------------------------------------------------------------------------------------------------------------------*/
+// We mixin DayTable, even though there is only a single row of days
+
+var TimeGrid = FC.TimeGrid = Grid.extend(DayTableMixin, {
+
+       slotDuration: null, // duration of a "slot", a distinct time segment on given day, visualized by lines
+       snapDuration: null, // granularity of time for dragging and selecting
+       snapsPerSlot: null,
+       minTime: null, // Duration object that denotes the first visible time of any given day
+       maxTime: null, // Duration object that denotes the exclusive visible end time of any given day
+       labelFormat: null, // formatting string for times running along vertical axis
+       labelInterval: null, // duration of how often a label should be displayed for a slot
+
+       colEls: null, // cells elements in the day-row background
+       slatContainerEl: null, // div that wraps all the slat rows
+       slatEls: null, // elements running horizontally across all columns
+       nowIndicatorEls: null,
+
+       colCoordCache: null,
+       slatCoordCache: null,
+
+
+       constructor: function() {
+               Grid.apply(this, arguments); // call the super-constructor
+
+               this.processOptions();
+       },
+
+
+       // Renders the time grid into `this.el`, which should already be assigned.
+       // Relies on the view's colCnt. In the future, this component should probably be self-sufficient.
+       renderDates: function() {
+               this.el.html(this.renderHtml());
+               this.colEls = this.el.find('.fc-day');
+               this.slatContainerEl = this.el.find('.fc-slats');
+               this.slatEls = this.slatContainerEl.find('tr');
+
+               this.colCoordCache = new CoordCache({
+                       els: this.colEls,
+                       isHorizontal: true
+               });
+               this.slatCoordCache = new CoordCache({
+                       els: this.slatEls,
+                       isVertical: true
+               });
+
+               this.renderContentSkeleton();
+       },
+
+
+       // Renders the basic HTML skeleton for the grid
+       renderHtml: function() {
+               return '' +
+                       '<div class="fc-bg">' +
+                               '<table>' +
+                                       this.renderBgTrHtml(0) + // row=0
+                               '</table>' +
+                       '</div>' +
+                       '<div class="fc-slats">' +
+                               '<table>' +
+                                       this.renderSlatRowHtml() +
+                               '</table>' +
+                       '</div>';
+       },
+
+
+       // Generates the HTML for the horizontal "slats" that run width-wise. Has a time axis on a side. Depends on RTL.
+       renderSlatRowHtml: function() {
+               var view = this.view;
+               var isRTL = this.isRTL;
+               var html = '';
+               var slotTime = moment.duration(+this.minTime); // wish there was .clone() for durations
+               var slotDate; // will be on the view's first day, but we only care about its time
+               var isLabeled;
+               var axisHtml;
+
+               // Calculate the time for each slot
+               while (slotTime < this.maxTime) {
+                       slotDate = this.start.clone().time(slotTime);
+                       isLabeled = isInt(divideDurationByDuration(slotTime, this.labelInterval));
+
+                       axisHtml =
+                               '<td class="fc-axis fc-time ' + view.widgetContentClass + '" ' + view.axisStyleAttr() + '>' +
+                                       (isLabeled ?
+                                               '<span>' + // for matchCellWidths
+                                                       htmlEscape(slotDate.format(this.labelFormat)) +
+                                               '</span>' :
+                                               ''
+                                               ) +
+                               '</td>';
+
+                       html +=
+                               '<tr data-time="' + slotDate.format('HH:mm:ss') + '"' +
+                                       (isLabeled ? '' : ' class="fc-minor"') +
+                                       '>' +
+                                       (!isRTL ? axisHtml : '') +
+                                       '<td class="' + view.widgetContentClass + '"/>' +
+                                       (isRTL ? axisHtml : '') +
+                               "</tr>";
+
+                       slotTime.add(this.slotDuration);
+               }
+
+               return html;
+       },
+
+
+       /* Options
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Parses various options into properties of this object
+       processOptions: function() {
+               var view = this.view;
+               var slotDuration = view.opt('slotDuration');
+               var snapDuration = view.opt('snapDuration');
+               var input;
+
+               slotDuration = moment.duration(slotDuration);
+               snapDuration = snapDuration ? moment.duration(snapDuration) : slotDuration;
+
+               this.slotDuration = slotDuration;
+               this.snapDuration = snapDuration;
+               this.snapsPerSlot = slotDuration / snapDuration; // TODO: ensure an integer multiple?
+
+               this.minResizeDuration = snapDuration; // hack
+
+               this.minTime = moment.duration(view.opt('minTime'));
+               this.maxTime = moment.duration(view.opt('maxTime'));
+
+               // might be an array value (for TimelineView).
+               // if so, getting the most granular entry (the last one probably).
+               input = view.opt('slotLabelFormat');
+               if ($.isArray(input)) {
+                       input = input[input.length - 1];
+               }
+
+               this.labelFormat =
+                       input ||
+                       view.opt('smallTimeFormat'); // the computed default
+
+               input = view.opt('slotLabelInterval');
+               this.labelInterval = input ?
+                       moment.duration(input) :
+                       this.computeLabelInterval(slotDuration);
+       },
+
+
+       // Computes an automatic value for slotLabelInterval
+       computeLabelInterval: function(slotDuration) {
+               var i;
+               var labelInterval;
+               var slotsPerLabel;
+
+               // find the smallest stock label interval that results in more than one slots-per-label
+               for (i = AGENDA_STOCK_SUB_DURATIONS.length - 1; i >= 0; i--) {
+                       labelInterval = moment.duration(AGENDA_STOCK_SUB_DURATIONS[i]);
+                       slotsPerLabel = divideDurationByDuration(labelInterval, slotDuration);
+                       if (isInt(slotsPerLabel) && slotsPerLabel > 1) {
+                               return labelInterval;
+                       }
+               }
+
+               return moment.duration(slotDuration); // fall back. clone
+       },
+
+
+       // Computes a default event time formatting string if `timeFormat` is not explicitly defined
+       computeEventTimeFormat: function() {
+               return this.view.opt('noMeridiemTimeFormat'); // like "6:30" (no AM/PM)
+       },
+
+
+       // Computes a default `displayEventEnd` value if one is not expliclty defined
+       computeDisplayEventEnd: function() {
+               return true;
+       },
+
+
+       /* Hit System
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       prepareHits: function() {
+               this.colCoordCache.build();
+               this.slatCoordCache.build();
+       },
+
+
+       releaseHits: function() {
+               this.colCoordCache.clear();
+               // NOTE: don't clear slatCoordCache because we rely on it for computeTimeTop
+       },
+
+
+       queryHit: function(leftOffset, topOffset) {
+               var snapsPerSlot = this.snapsPerSlot;
+               var colCoordCache = this.colCoordCache;
+               var slatCoordCache = this.slatCoordCache;
+
+               if (colCoordCache.isLeftInBounds(leftOffset) && slatCoordCache.isTopInBounds(topOffset)) {
+                       var colIndex = colCoordCache.getHorizontalIndex(leftOffset);
+                       var slatIndex = slatCoordCache.getVerticalIndex(topOffset);
+
+                       if (colIndex != null && slatIndex != null) {
+                               var slatTop = slatCoordCache.getTopOffset(slatIndex);
+                               var slatHeight = slatCoordCache.getHeight(slatIndex);
+                               var partial = (topOffset - slatTop) / slatHeight; // floating point number between 0 and 1
+                               var localSnapIndex = Math.floor(partial * snapsPerSlot); // the snap # relative to start of slat
+                               var snapIndex = slatIndex * snapsPerSlot + localSnapIndex;
+                               var snapTop = slatTop + (localSnapIndex / snapsPerSlot) * slatHeight;
+                               var snapBottom = slatTop + ((localSnapIndex + 1) / snapsPerSlot) * slatHeight;
+
+                               return {
+                                       col: colIndex,
+                                       snap: snapIndex,
+                                       component: this, // needed unfortunately :(
+                                       left: colCoordCache.getLeftOffset(colIndex),
+                                       right: colCoordCache.getRightOffset(colIndex),
+                                       top: snapTop,
+                                       bottom: snapBottom
+                               };
+                       }
+               }
+       },
+
+
+       getHitSpan: function(hit) {
+               var start = this.getCellDate(0, hit.col); // row=0
+               var time = this.computeSnapTime(hit.snap); // pass in the snap-index
+               var end;
+
+               start.time(time);
+               end = start.clone().add(this.snapDuration);
+
+               return { start: start, end: end };
+       },
+
+
+       getHitEl: function(hit) {
+               return this.colEls.eq(hit.col);
+       },
+
+
+       /* Dates
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       rangeUpdated: function() {
+               this.updateDayTable();
+       },
+
+
+       // Given a row number of the grid, representing a "snap", returns a time (Duration) from its start-of-day
+       computeSnapTime: function(snapIndex) {
+               return moment.duration(this.minTime + this.snapDuration * snapIndex);
+       },
+
+
+       // Slices up the given span (unzoned start/end with other misc data) into an array of segments
+       spanToSegs: function(span) {
+               var segs = this.sliceRangeByTimes(span);
+               var i;
+
+               for (i = 0; i < segs.length; i++) {
+                       if (this.isRTL) {
+                               segs[i].col = this.daysPerRow - 1 - segs[i].dayIndex;
+                       }
+                       else {
+                               segs[i].col = segs[i].dayIndex;
+                       }
+               }
+
+               return segs;
+       },
+
+
+       sliceRangeByTimes: function(range) {
+               var segs = [];
+               var seg;
+               var dayIndex;
+               var dayDate;
+               var dayRange;
+
+               for (dayIndex = 0; dayIndex < this.daysPerRow; dayIndex++) {
+                       dayDate = this.dayDates[dayIndex].clone(); // TODO: better API for this?
+                       dayRange = {
+                               start: dayDate.clone().time(this.minTime),
+                               end: dayDate.clone().time(this.maxTime)
+                       };
+                       seg = intersectRanges(range, dayRange); // both will be ambig timezone
+                       if (seg) {
+                               seg.dayIndex = dayIndex;
+                               segs.push(seg);
+                       }
+               }
+
+               return segs;
+       },
+
+
+       /* Coordinates
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       updateSize: function(isResize) { // NOT a standard Grid method
+               this.slatCoordCache.build();
+
+               if (isResize) {
+                       this.updateSegVerticals(
+                               [].concat(this.fgSegs || [], this.bgSegs || [], this.businessSegs || [])
+                       );
+               }
+       },
+
+
+       getTotalSlatHeight: function() {
+               return this.slatContainerEl.outerHeight();
+       },
+
+
+       // Computes the top coordinate, relative to the bounds of the grid, of the given date.
+       // A `startOfDayDate` must be given for avoiding ambiguity over how to treat midnight.
+       computeDateTop: function(date, startOfDayDate) {
+               return this.computeTimeTop(
+                       moment.duration(
+                               date - startOfDayDate.clone().stripTime()
+                       )
+               );
+       },
+
+
+       // Computes the top coordinate, relative to the bounds of the grid, of the given time (a Duration).
+       computeTimeTop: function(time) {
+               var len = this.slatEls.length;
+               var slatCoverage = (time - this.minTime) / this.slotDuration; // floating-point value of # of slots covered
+               var slatIndex;
+               var slatRemainder;
+
+               // compute a floating-point number for how many slats should be progressed through.
+               // from 0 to number of slats (inclusive)
+               // constrained because minTime/maxTime might be customized.
+               slatCoverage = Math.max(0, slatCoverage);
+               slatCoverage = Math.min(len, slatCoverage);
+
+               // an integer index of the furthest whole slat
+               // from 0 to number slats (*exclusive*, so len-1)
+               slatIndex = Math.floor(slatCoverage);
+               slatIndex = Math.min(slatIndex, len - 1);
+
+               // how much further through the slatIndex slat (from 0.0-1.0) must be covered in addition.
+               // could be 1.0 if slatCoverage is covering *all* the slots
+               slatRemainder = slatCoverage - slatIndex;
+
+               return this.slatCoordCache.getTopPosition(slatIndex) +
+                       this.slatCoordCache.getHeight(slatIndex) * slatRemainder;
+       },
+
+
+
+       /* Event Drag Visualization
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a visual indication of an event being dragged over the specified date(s).
+       // A returned value of `true` signals that a mock "helper" event has been rendered.
+       renderDrag: function(eventLocation, seg) {
+
+               if (seg) { // if there is event information for this drag, render a helper event
+
+                       // returns mock event elements
+                       // signal that a helper has been rendered
+                       return this.renderEventLocationHelper(eventLocation, seg);
+               }
+               else {
+                       // otherwise, just render a highlight
+                       this.renderHighlight(this.eventToSpan(eventLocation));
+               }
+       },
+
+
+       // Unrenders any visual indication of an event being dragged
+       unrenderDrag: function() {
+               this.unrenderHelper();
+               this.unrenderHighlight();
+       },
+
+
+       /* Event Resize Visualization
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a visual indication of an event being resized
+       renderEventResize: function(eventLocation, seg) {
+               return this.renderEventLocationHelper(eventLocation, seg); // returns mock event elements
+       },
+
+
+       // Unrenders any visual indication of an event being resized
+       unrenderEventResize: function() {
+               this.unrenderHelper();
+       },
+
+
+       /* Event Helper
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a mock "helper" event. `sourceSeg` is the original segment object and might be null (an external drag)
+       renderHelper: function(event, sourceSeg) {
+               return this.renderHelperSegs(this.eventToSegs(event), sourceSeg); // returns mock event elements
+       },
+
+
+       // Unrenders any mock helper event
+       unrenderHelper: function() {
+               this.unrenderHelperSegs();
+       },
+
+
+       /* Business Hours
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderBusinessHours: function() {
+               this.renderBusinessSegs(
+                       this.buildBusinessHourSegs()
+               );
+       },
+
+
+       unrenderBusinessHours: function() {
+               this.unrenderBusinessSegs();
+       },
+
+
+       /* Now Indicator
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       getNowIndicatorUnit: function() {
+               return 'minute'; // will refresh on the minute
+       },
+
+
+       renderNowIndicator: function(date) {
+               // seg system might be overkill, but it handles scenario where line needs to be rendered
+               //  more than once because of columns with the same date (resources columns for example)
+               var segs = this.spanToSegs({ start: date, end: date });
+               var top = this.computeDateTop(date, date);
+               var nodes = [];
+               var i;
+
+               // render lines within the columns
+               for (i = 0; i < segs.length; i++) {
+                       nodes.push($('<div class="fc-now-indicator fc-now-indicator-line"></div>')
+                               .css('top', top)
+                               .appendTo(this.colContainerEls.eq(segs[i].col))[0]);
+               }
+
+               // render an arrow over the axis
+               if (segs.length > 0) { // is the current time in view?
+                       nodes.push($('<div class="fc-now-indicator fc-now-indicator-arrow"></div>')
+                               .css('top', top)
+                               .appendTo(this.el.find('.fc-content-skeleton'))[0]);
+               }
+
+               this.nowIndicatorEls = $(nodes);
+       },
+
+
+       unrenderNowIndicator: function() {
+               if (this.nowIndicatorEls) {
+                       this.nowIndicatorEls.remove();
+                       this.nowIndicatorEls = null;
+               }
+       },
+
+
+       /* Selection
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a visual indication of a selection. Overrides the default, which was to simply render a highlight.
+       renderSelection: function(span) {
+               if (this.view.opt('selectHelper')) { // this setting signals that a mock helper event should be rendered
+
+                       // normally acceps an eventLocation, span has a start/end, which is good enough
+                       this.renderEventLocationHelper(span);
+               }
+               else {
+                       this.renderHighlight(span);
+               }
+       },
+
+
+       // Unrenders any visual indication of a selection
+       unrenderSelection: function() {
+               this.unrenderHelper();
+               this.unrenderHighlight();
+       },
+
+
+       /* Highlight
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderHighlight: function(span) {
+               this.renderHighlightSegs(this.spanToSegs(span));
+       },
+
+
+       unrenderHighlight: function() {
+               this.unrenderHighlightSegs();
+       }
+
+});
+
+;;
+
+/* Methods for rendering SEGMENTS, pieces of content that live on the view
+ ( this file is no longer just for events )
+----------------------------------------------------------------------------------------------------------------------*/
+
+TimeGrid.mixin({
+
+       colContainerEls: null, // containers for each column
+
+       // inner-containers for each column where different types of segs live
+       fgContainerEls: null,
+       bgContainerEls: null,
+       helperContainerEls: null,
+       highlightContainerEls: null,
+       businessContainerEls: null,
+
+       // arrays of different types of displayed segments
+       fgSegs: null,
+       bgSegs: null,
+       helperSegs: null,
+       highlightSegs: null,
+       businessSegs: null,
+
+
+       // Renders the DOM that the view's content will live in
+       renderContentSkeleton: function() {
+               var cellHtml = '';
+               var i;
+               var skeletonEl;
+
+               for (i = 0; i < this.colCnt; i++) {
+                       cellHtml +=
+                               '<td>' +
+                                       '<div class="fc-content-col">' +
+                                               '<div class="fc-event-container fc-helper-container"></div>' +
+                                               '<div class="fc-event-container"></div>' +
+                                               '<div class="fc-highlight-container"></div>' +
+                                               '<div class="fc-bgevent-container"></div>' +
+                                               '<div class="fc-business-container"></div>' +
+                                       '</div>' +
+                               '</td>';
+               }
+
+               skeletonEl = $(
+                       '<div class="fc-content-skeleton">' +
+                               '<table>' +
+                                       '<tr>' + cellHtml + '</tr>' +
+                               '</table>' +
+                       '</div>'
+               );
+
+               this.colContainerEls = skeletonEl.find('.fc-content-col');
+               this.helperContainerEls = skeletonEl.find('.fc-helper-container');
+               this.fgContainerEls = skeletonEl.find('.fc-event-container:not(.fc-helper-container)');
+               this.bgContainerEls = skeletonEl.find('.fc-bgevent-container');
+               this.highlightContainerEls = skeletonEl.find('.fc-highlight-container');
+               this.businessContainerEls = skeletonEl.find('.fc-business-container');
+
+               this.bookendCells(skeletonEl.find('tr')); // TODO: do this on string level
+               this.el.append(skeletonEl);
+       },
+
+
+       /* Foreground Events
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderFgSegs: function(segs) {
+               segs = this.renderFgSegsIntoContainers(segs, this.fgContainerEls);
+               this.fgSegs = segs;
+               return segs; // needed for Grid::renderEvents
+       },
+
+
+       unrenderFgSegs: function() {
+               this.unrenderNamedSegs('fgSegs');
+       },
+
+
+       /* Foreground Helper Events
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderHelperSegs: function(segs, sourceSeg) {
+               var helperEls = [];
+               var i, seg;
+               var sourceEl;
+
+               segs = this.renderFgSegsIntoContainers(segs, this.helperContainerEls);
+
+               // Try to make the segment that is in the same row as sourceSeg look the same
+               for (i = 0; i < segs.length; i++) {
+                       seg = segs[i];
+                       if (sourceSeg && sourceSeg.col === seg.col) {
+                               sourceEl = sourceSeg.el;
+                               seg.el.css({
+                                       left: sourceEl.css('left'),
+                                       right: sourceEl.css('right'),
+                                       'margin-left': sourceEl.css('margin-left'),
+                                       'margin-right': sourceEl.css('margin-right')
+                               });
+                       }
+                       helperEls.push(seg.el[0]);
+               }
+
+               this.helperSegs = segs;
+
+               return $(helperEls); // must return rendered helpers
+       },
+
+
+       unrenderHelperSegs: function() {
+               this.unrenderNamedSegs('helperSegs');
+       },
+
+
+       /* Background Events
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderBgSegs: function(segs) {
+               segs = this.renderFillSegEls('bgEvent', segs); // TODO: old fill system
+               this.updateSegVerticals(segs);
+               this.attachSegsByCol(this.groupSegsByCol(segs), this.bgContainerEls);
+               this.bgSegs = segs;
+               return segs; // needed for Grid::renderEvents
+       },
+
+
+       unrenderBgSegs: function() {
+               this.unrenderNamedSegs('bgSegs');
+       },
+
+
+       /* Highlight
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderHighlightSegs: function(segs) {
+               segs = this.renderFillSegEls('highlight', segs); // TODO: old fill system
+               this.updateSegVerticals(segs);
+               this.attachSegsByCol(this.groupSegsByCol(segs), this.highlightContainerEls);
+               this.highlightSegs = segs;
+       },
+
+
+       unrenderHighlightSegs: function() {
+               this.unrenderNamedSegs('highlightSegs');
+       },
+
+
+       /* Business Hours
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderBusinessSegs: function(segs) {
+               segs = this.renderFillSegEls('businessHours', segs); // TODO: old fill system
+               this.updateSegVerticals(segs);
+               this.attachSegsByCol(this.groupSegsByCol(segs), this.businessContainerEls);
+               this.businessSegs = segs;
+       },
+
+
+       unrenderBusinessSegs: function() {
+               this.unrenderNamedSegs('businessSegs');
+       },
+
+
+       /* Seg Rendering Utils
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Given a flat array of segments, return an array of sub-arrays, grouped by each segment's col
+       groupSegsByCol: function(segs) {
+               var segsByCol = [];
+               var i;
+
+               for (i = 0; i < this.colCnt; i++) {
+                       segsByCol.push([]);
+               }
+
+               for (i = 0; i < segs.length; i++) {
+                       segsByCol[segs[i].col].push(segs[i]);
+               }
+
+               return segsByCol;
+       },
+
+
+       // Given segments grouped by column, insert the segments' elements into a parallel array of container
+       // elements, each living within a column.
+       attachSegsByCol: function(segsByCol, containerEls) {
+               var col;
+               var segs;
+               var i;
+
+               for (col = 0; col < this.colCnt; col++) { // iterate each column grouping
+                       segs = segsByCol[col];
+
+                       for (i = 0; i < segs.length; i++) {
+                               containerEls.eq(col).append(segs[i].el);
+                       }
+               }
+       },
+
+
+       // Given the name of a property of `this` object, assumed to be an array of segments,
+       // loops through each segment and removes from DOM. Will null-out the property afterwards.
+       unrenderNamedSegs: function(propName) {
+               var segs = this[propName];
+               var i;
+
+               if (segs) {
+                       for (i = 0; i < segs.length; i++) {
+                               segs[i].el.remove();
+                       }
+                       this[propName] = null;
+               }
+       },
+
+
+
+       /* Foreground Event Rendering Utils
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Given an array of foreground segments, render a DOM element for each, computes position,
+       // and attaches to the column inner-container elements.
+       renderFgSegsIntoContainers: function(segs, containerEls) {
+               var segsByCol;
+               var col;
+
+               segs = this.renderFgSegEls(segs); // will call fgSegHtml
+               segsByCol = this.groupSegsByCol(segs);
+
+               for (col = 0; col < this.colCnt; col++) {
+                       this.updateFgSegCoords(segsByCol[col]);
+               }
+
+               this.attachSegsByCol(segsByCol, containerEls);
+
+               return segs;
+       },
+
+
+       // Renders the HTML for a single event segment's default rendering
+       fgSegHtml: function(seg, disableResizing) {
+               var view = this.view;
+               var event = seg.event;
+               var isDraggable = view.isEventDraggable(event);
+               var isResizableFromStart = !disableResizing && seg.isStart && view.isEventResizableFromStart(event);
+               var isResizableFromEnd = !disableResizing && seg.isEnd && view.isEventResizableFromEnd(event);
+               var classes = this.getSegClasses(seg, isDraggable, isResizableFromStart || isResizableFromEnd);
+               var skinCss = cssToStr(this.getSegSkinCss(seg));
+               var timeText;
+               var fullTimeText; // more verbose time text. for the print stylesheet
+               var startTimeText; // just the start time text
+
+               classes.unshift('fc-time-grid-event', 'fc-v-event');
+
+               if (view.isMultiDayEvent(event)) { // if the event appears to span more than one day...
+                       // Don't display time text on segments that run entirely through a day.
+                       // That would appear as midnight-midnight and would look dumb.
+                       // Otherwise, display the time text for the *segment's* times (like 6pm-midnight or midnight-10am)
+                       if (seg.isStart || seg.isEnd) {
+                               timeText = this.getEventTimeText(seg);
+                               fullTimeText = this.getEventTimeText(seg, 'LT');
+                               startTimeText = this.getEventTimeText(seg, null, false); // displayEnd=false
+                       }
+               } else {
+                       // Display the normal time text for the *event's* times
+                       timeText = this.getEventTimeText(event);
+                       fullTimeText = this.getEventTimeText(event, 'LT');
+                       startTimeText = this.getEventTimeText(event, null, false); // displayEnd=false
+               }
+
+               return '<a class="' + classes.join(' ') + '"' +
+                       (event.url ?
+                               ' href="' + htmlEscape(event.url) + '"' :
+                               ''
+                               ) +
+                       (skinCss ?
+                               ' style="' + skinCss + '"' :
+                               ''
+                               ) +
+                       '>' +
+                               '<div class="fc-content">' +
+                                       (timeText ?
+                                               '<div class="fc-time"' +
+                                               ' data-start="' + htmlEscape(startTimeText) + '"' +
+                                               ' data-full="' + htmlEscape(fullTimeText) + '"' +
+                                               '>' +
+                                                       '<span>' + htmlEscape(timeText) + '</span>' +
+                                               '</div>' :
+                                               ''
+                                               ) +
+                                       (event.title ?
+                                               '<div class="fc-title">' +
+                                                       htmlEscape(event.title) +
+                                               '</div>' :
+                                               ''
+                                               ) +
+                               '</div>' +
+                               '<div class="fc-bg"/>' +
+                               /* TODO: write CSS for this
+                               (isResizableFromStart ?
+                                       '<div class="fc-resizer fc-start-resizer" />' :
+                                       ''
+                                       ) +
+                               */
+                               (isResizableFromEnd ?
+                                       '<div class="fc-resizer fc-end-resizer" />' :
+                                       ''
+                                       ) +
+                       '</a>';
+       },
+
+
+       /* Seg Position Utils
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Refreshes the CSS top/bottom coordinates for each segment element.
+       // Works when called after initial render, after a window resize/zoom for example.
+       updateSegVerticals: function(segs) {
+               this.computeSegVerticals(segs);
+               this.assignSegVerticals(segs);
+       },
+
+
+       // For each segment in an array, computes and assigns its top and bottom properties
+       computeSegVerticals: function(segs) {
+               var i, seg;
+
+               for (i = 0; i < segs.length; i++) {
+                       seg = segs[i];
+                       seg.top = this.computeDateTop(seg.start, seg.start);
+                       seg.bottom = this.computeDateTop(seg.end, seg.start);
+               }
+       },
+
+
+       // Given segments that already have their top/bottom properties computed, applies those values to
+       // the segments' elements.
+       assignSegVerticals: function(segs) {
+               var i, seg;
+
+               for (i = 0; i < segs.length; i++) {
+                       seg = segs[i];
+                       seg.el.css(this.generateSegVerticalCss(seg));
+               }
+       },
+
+
+       // Generates an object with CSS properties for the top/bottom coordinates of a segment element
+       generateSegVerticalCss: function(seg) {
+               return {
+                       top: seg.top,
+                       bottom: -seg.bottom // flipped because needs to be space beyond bottom edge of event container
+               };
+       },
+
+
+       /* Foreground Event Positioning Utils
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Given segments that are assumed to all live in the *same column*,
+       // compute their verical/horizontal coordinates and assign to their elements.
+       updateFgSegCoords: function(segs) {
+               this.computeSegVerticals(segs); // horizontals relies on this
+               this.computeFgSegHorizontals(segs); // compute horizontal coordinates, z-index's, and reorder the array
+               this.assignSegVerticals(segs);
+               this.assignFgSegHorizontals(segs);
+       },
+
+
+       // Given an array of segments that are all in the same column, sets the backwardCoord and forwardCoord on each.
+       // NOTE: Also reorders the given array by date!
+       computeFgSegHorizontals: function(segs) {
+               var levels;
+               var level0;
+               var i;
+
+               this.sortEventSegs(segs); // order by certain criteria
+               levels = buildSlotSegLevels(segs);
+               computeForwardSlotSegs(levels);
+
+               if ((level0 = levels[0])) {
+
+                       for (i = 0; i < level0.length; i++) {
+                               computeSlotSegPressures(level0[i]);
+                       }
+
+                       for (i = 0; i < level0.length; i++) {
+                               this.computeFgSegForwardBack(level0[i], 0, 0);
+                       }
+               }
+       },
+
+
+       // Calculate seg.forwardCoord and seg.backwardCoord for the segment, where both values range
+       // from 0 to 1. If the calendar is left-to-right, the seg.backwardCoord maps to "left" and
+       // seg.forwardCoord maps to "right" (via percentage). Vice-versa if the calendar is right-to-left.
+       //
+       // The segment might be part of a "series", which means consecutive segments with the same pressure
+       // who's width is unknown until an edge has been hit. `seriesBackwardPressure` is the number of
+       // segments behind this one in the current series, and `seriesBackwardCoord` is the starting
+       // coordinate of the first segment in the series.
+       computeFgSegForwardBack: function(seg, seriesBackwardPressure, seriesBackwardCoord) {
+               var forwardSegs = seg.forwardSegs;
+               var i;
+
+               if (seg.forwardCoord === undefined) { // not already computed
+
+                       if (!forwardSegs.length) {
+
+                               // if there are no forward segments, this segment should butt up against the edge
+                               seg.forwardCoord = 1;
+                       }
+                       else {
+
+                               // sort highest pressure first
+                               this.sortForwardSegs(forwardSegs);
+
+                               // this segment's forwardCoord will be calculated from the backwardCoord of the
+                               // highest-pressure forward segment.
+                               this.computeFgSegForwardBack(forwardSegs[0], seriesBackwardPressure + 1, seriesBackwardCoord);
+                               seg.forwardCoord = forwardSegs[0].backwardCoord;
+                       }
+
+                       // calculate the backwardCoord from the forwardCoord. consider the series
+                       seg.backwardCoord = seg.forwardCoord -
+                               (seg.forwardCoord - seriesBackwardCoord) / // available width for series
+                               (seriesBackwardPressure + 1); // # of segments in the series
+
+                       // use this segment's coordinates to computed the coordinates of the less-pressurized
+                       // forward segments
+                       for (i=0; i<forwardSegs.length; i++) {
+                               this.computeFgSegForwardBack(forwardSegs[i], 0, seg.forwardCoord);
+                       }
+               }
+       },
+
+
+       sortForwardSegs: function(forwardSegs) {
+               forwardSegs.sort(proxy(this, 'compareForwardSegs'));
+       },
+
+
+       // A cmp function for determining which forward segment to rely on more when computing coordinates.
+       compareForwardSegs: function(seg1, seg2) {
+               // put higher-pressure first
+               return seg2.forwardPressure - seg1.forwardPressure ||
+                       // put segments that are closer to initial edge first (and favor ones with no coords yet)
+                       (seg1.backwardCoord || 0) - (seg2.backwardCoord || 0) ||
+                       // do normal sorting...
+                       this.compareEventSegs(seg1, seg2);
+       },
+
+
+       // Given foreground event segments that have already had their position coordinates computed,
+       // assigns position-related CSS values to their elements.
+       assignFgSegHorizontals: function(segs) {
+               var i, seg;
+
+               for (i = 0; i < segs.length; i++) {
+                       seg = segs[i];
+                       seg.el.css(this.generateFgSegHorizontalCss(seg));
+
+                       // if the height is short, add a className for alternate styling
+                       if (seg.bottom - seg.top < 30) {
+                               seg.el.addClass('fc-short');
+                       }
+               }
+       },
+
+
+       // Generates an object with CSS properties/values that should be applied to an event segment element.
+       // Contains important positioning-related properties that should be applied to any event element, customized or not.
+       generateFgSegHorizontalCss: function(seg) {
+               var shouldOverlap = this.view.opt('slotEventOverlap');
+               var backwardCoord = seg.backwardCoord; // the left side if LTR. the right side if RTL. floating-point
+               var forwardCoord = seg.forwardCoord; // the right side if LTR. the left side if RTL. floating-point
+               var props = this.generateSegVerticalCss(seg); // get top/bottom first
+               var left; // amount of space from left edge, a fraction of the total width
+               var right; // amount of space from right edge, a fraction of the total width
+
+               if (shouldOverlap) {
+                       // double the width, but don't go beyond the maximum forward coordinate (1.0)
+                       forwardCoord = Math.min(1, backwardCoord + (forwardCoord - backwardCoord) * 2);
+               }
+
+               if (this.isRTL) {
+                       left = 1 - forwardCoord;
+                       right = backwardCoord;
+               }
+               else {
+                       left = backwardCoord;
+                       right = 1 - forwardCoord;
+               }
+
+               props.zIndex = seg.level + 1; // convert from 0-base to 1-based
+               props.left = left * 100 + '%';
+               props.right = right * 100 + '%';
+
+               if (shouldOverlap && seg.forwardPressure) {
+                       // add padding to the edge so that forward stacked events don't cover the resizer's icon
+                       props[this.isRTL ? 'marginLeft' : 'marginRight'] = 10 * 2; // 10 is a guesstimate of the icon's width
+               }
+
+               return props;
+       }
+
+});
+
+
+// Builds an array of segments "levels". The first level will be the leftmost tier of segments if the calendar is
+// left-to-right, or the rightmost if the calendar is right-to-left. Assumes the segments are already ordered by date.
+function buildSlotSegLevels(segs) {
+       var levels = [];
+       var i, seg;
+       var j;
+
+       for (i=0; i<segs.length; i++) {
+               seg = segs[i];
+
+               // go through all the levels and stop on the first level where there are no collisions
+               for (j=0; j<levels.length; j++) {
+                       if (!computeSlotSegCollisions(seg, levels[j]).length) {
+                               break;
+                       }
+               }
+
+               seg.level = j;
+
+               (levels[j] || (levels[j] = [])).push(seg);
+       }
+
+       return levels;
+}
+
+
+// For every segment, figure out the other segments that are in subsequent
+// levels that also occupy the same vertical space. Accumulate in seg.forwardSegs
+function computeForwardSlotSegs(levels) {
+       var i, level;
+       var j, seg;
+       var k;
+
+       for (i=0; i<levels.length; i++) {
+               level = levels[i];
+
+               for (j=0; j<level.length; j++) {
+                       seg = level[j];
+
+                       seg.forwardSegs = [];
+                       for (k=i+1; k<levels.length; k++) {
+                               computeSlotSegCollisions(seg, levels[k], seg.forwardSegs);
+                       }
+               }
+       }
+}
+
+
+// Figure out which path forward (via seg.forwardSegs) results in the longest path until
+// the furthest edge is reached. The number of segments in this path will be seg.forwardPressure
+function computeSlotSegPressures(seg) {
+       var forwardSegs = seg.forwardSegs;
+       var forwardPressure = 0;
+       var i, forwardSeg;
+
+       if (seg.forwardPressure === undefined) { // not already computed
+
+               for (i=0; i<forwardSegs.length; i++) {
+                       forwardSeg = forwardSegs[i];
+
+                       // figure out the child's maximum forward path
+                       computeSlotSegPressures(forwardSeg);
+
+                       // either use the existing maximum, or use the child's forward pressure
+                       // plus one (for the forwardSeg itself)
+                       forwardPressure = Math.max(
+                               forwardPressure,
+                               1 + forwardSeg.forwardPressure
+                       );
+               }
+
+               seg.forwardPressure = forwardPressure;
+       }
+}
+
+
+// Find all the segments in `otherSegs` that vertically collide with `seg`.
+// Append into an optionally-supplied `results` array and return.
+function computeSlotSegCollisions(seg, otherSegs, results) {
+       results = results || [];
+
+       for (var i=0; i<otherSegs.length; i++) {
+               if (isSlotSegCollision(seg, otherSegs[i])) {
+                       results.push(otherSegs[i]);
+               }
+       }
+
+       return results;
+}
+
+
+// Do these segments occupy the same vertical space?
+function isSlotSegCollision(seg1, seg2) {
+       return seg1.bottom > seg2.top && seg1.top < seg2.bottom;
+}
+
+;;
+
+/* An abstract class from which other views inherit from
+----------------------------------------------------------------------------------------------------------------------*/
+
+var View = FC.View = Class.extend(EmitterMixin, ListenerMixin, {
+
+       type: null, // subclass' view name (string)
+       name: null, // deprecated. use `type` instead
+       title: null, // the text that will be displayed in the header's title
+
+       calendar: null, // owner Calendar object
+       options: null, // hash containing all options. already merged with view-specific-options
+       el: null, // the view's containing element. set by Calendar
+
+       isDateSet: false,
+       isDateRendered: false,
+       dateRenderQueue: null,
+
+       isEventsBound: false,
+       isEventsSet: false,
+       isEventsRendered: false,
+       eventRenderQueue: null,
+
+       // range the view is actually displaying (moments)
+       start: null,
+       end: null, // exclusive
+
+       // range the view is formally responsible for (moments)
+       // may be different from start/end. for example, a month view might have 1st-31st, excluding padded dates
+       intervalStart: null,
+       intervalEnd: null, // exclusive
+       intervalDuration: null,
+       intervalUnit: null, // name of largest unit being displayed, like "month" or "week"
+
+       isRTL: false,
+       isSelected: false, // boolean whether a range of time is user-selected or not
+       selectedEvent: null,
+
+       eventOrderSpecs: null, // criteria for ordering events when they have same date/time
+
+       // classNames styled by jqui themes
+       widgetHeaderClass: null,
+       widgetContentClass: null,
+       highlightStateClass: null,
+
+       // for date utils, computed from options
+       nextDayThreshold: null,
+       isHiddenDayHash: null,
+
+       // now indicator
+       isNowIndicatorRendered: null,
+       initialNowDate: null, // result first getNow call
+       initialNowQueriedMs: null, // ms time the getNow was called
+       nowIndicatorTimeoutID: null, // for refresh timing of now indicator
+       nowIndicatorIntervalID: null, // "
+
+
+       constructor: function(calendar, type, options, intervalDuration) {
+
+               this.calendar = calendar;
+               this.type = this.name = type; // .name is deprecated
+               this.options = options;
+               this.intervalDuration = intervalDuration || moment.duration(1, 'day');
+
+               this.nextDayThreshold = moment.duration(this.opt('nextDayThreshold'));
+               this.initThemingProps();
+               this.initHiddenDays();
+               this.isRTL = this.opt('isRTL');
+
+               this.eventOrderSpecs = parseFieldSpecs(this.opt('eventOrder'));
+
+               this.dateRenderQueue = new TaskQueue();
+               this.eventRenderQueue = new TaskQueue(this.opt('eventRenderWait'));
+
+               this.initialize();
+       },
+
+
+       // A good place for subclasses to initialize member variables
+       initialize: function() {
+               // subclasses can implement
+       },
+
+
+       // Retrieves an option with the given name
+       opt: function(name) {
+               return this.options[name];
+       },
+
+
+       // Triggers handlers that are view-related. Modifies args before passing to calendar.
+       publiclyTrigger: function(name, thisObj) { // arguments beyond thisObj are passed along
+               var calendar = this.calendar;
+
+               return calendar.publiclyTrigger.apply(
+                       calendar,
+                       [name, thisObj || this].concat(
+                               Array.prototype.slice.call(arguments, 2), // arguments beyond thisObj
+                               [ this ] // always make the last argument a reference to the view. TODO: deprecate
+                       )
+               );
+       },
+
+
+       // Returns a proxy of the given promise that will be rejected if the given event fires
+       // before the promise resolves.
+       rejectOn: function(eventName, promise) {
+               var _this = this;
+
+               return new Promise(function(resolve, reject) {
+                       _this.one(eventName, reject);
+
+                       function cleanup() {
+                               _this.off(eventName, reject);
+                       }
+
+                       promise.then(function(res) { // success
+                               cleanup();
+                               resolve(res);
+                       }, function() { // failure
+                               cleanup();
+                               reject();
+                       });
+               });
+       },
+
+
+       /* Date Computation
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Updates all internal dates for displaying the given unzoned range.
+       setRange: function(range) {
+               $.extend(this, range); // assigns every property to this object's member variables
+               this.updateTitle();
+       },
+
+
+       // Given a single current unzoned date, produce information about what range to display.
+       // Subclasses can override. Must return all properties.
+       computeRange: function(date) {
+               var intervalUnit = computeIntervalUnit(this.intervalDuration);
+               var intervalStart = date.clone().startOf(intervalUnit);
+               var intervalEnd = intervalStart.clone().add(this.intervalDuration);
+               var start, end;
+
+               // normalize the range's time-ambiguity
+               if (/year|month|week|day/.test(intervalUnit)) { // whole-days?
+                       intervalStart.stripTime();
+                       intervalEnd.stripTime();
+               }
+               else { // needs to have a time?
+                       if (!intervalStart.hasTime()) {
+                               intervalStart = this.calendar.time(0); // give 00:00 time
+                       }
+                       if (!intervalEnd.hasTime()) {
+                               intervalEnd = this.calendar.time(0); // give 00:00 time
+                       }
+               }
+
+               start = intervalStart.clone();
+               start = this.skipHiddenDays(start);
+               end = intervalEnd.clone();
+               end = this.skipHiddenDays(end, -1, true); // exclusively move backwards
+
+               return {
+                       intervalUnit: intervalUnit,
+                       intervalStart: intervalStart,
+                       intervalEnd: intervalEnd,
+                       start: start,
+                       end: end
+               };
+       },
+
+
+       // Computes the new date when the user hits the prev button, given the current date
+       computePrevDate: function(date) {
+               return this.massageCurrentDate(
+                       date.clone().startOf(this.intervalUnit).subtract(this.intervalDuration), -1
+               );
+       },
+
+
+       // Computes the new date when the user hits the next button, given the current date
+       computeNextDate: function(date) {
+               return this.massageCurrentDate(
+                       date.clone().startOf(this.intervalUnit).add(this.intervalDuration)
+               );
+       },
+
+
+       // Given an arbitrarily calculated current date of the calendar, returns a date that is ensured to be completely
+       // visible. `direction` is optional and indicates which direction the current date was being
+       // incremented or decremented (1 or -1).
+       massageCurrentDate: function(date, direction) {
+               if (this.intervalDuration.as('days') <= 1) { // if the view displays a single day or smaller
+                       if (this.isHiddenDay(date)) {
+                               date = this.skipHiddenDays(date, direction);
+                               date.startOf('day');
+                       }
+               }
+
+               return date;
+       },
+
+
+       /* Title and Date Formatting
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Sets the view's title property to the most updated computed value
+       updateTitle: function() {
+               this.title = this.computeTitle();
+               this.calendar.setToolbarsTitle(this.title);
+       },
+
+
+       // Computes what the title at the top of the calendar should be for this view
+       computeTitle: function() {
+               var start, end;
+
+               // for views that span a large unit of time, show the proper interval, ignoring stray days before and after
+               if (this.intervalUnit === 'year' || this.intervalUnit === 'month') {
+                       start = this.intervalStart;
+                       end = this.intervalEnd;
+               }
+               else { // for day units or smaller, use the actual day range
+                       start = this.start;
+                       end = this.end;
+               }
+
+               return this.formatRange(
+                       {
+                               // in case intervalStart/End has a time, make sure timezone is correct
+                               start: this.calendar.applyTimezone(start),
+                               end: this.calendar.applyTimezone(end)
+                       },
+                       this.opt('titleFormat') || this.computeTitleFormat(),
+                       this.opt('titleRangeSeparator')
+               );
+       },
+
+
+       // Generates the format string that should be used to generate the title for the current date range.
+       // Attempts to compute the most appropriate format if not explicitly specified with `titleFormat`.
+       computeTitleFormat: function() {
+               if (this.intervalUnit == 'year') {
+                       return 'YYYY';
+               }
+               else if (this.intervalUnit == 'month') {
+                       return this.opt('monthYearFormat'); // like "September 2014"
+               }
+               else if (this.intervalDuration.as('days') > 1) {
+                       return 'll'; // multi-day range. shorter, like "Sep 9 - 10 2014"
+               }
+               else {
+                       return 'LL'; // one day. longer, like "September 9 2014"
+               }
+       },
+
+
+       // Utility for formatting a range. Accepts a range object, formatting string, and optional separator.
+       // Displays all-day ranges naturally, with an inclusive end. Takes the current isRTL into account.
+       // The timezones of the dates within `range` will be respected.
+       formatRange: function(range, formatStr, separator) {
+               var end = range.end;
+
+               if (!end.hasTime()) { // all-day?
+                       end = end.clone().subtract(1); // convert to inclusive. last ms of previous day
+               }
+
+               return formatRange(range.start, end, formatStr, separator, this.opt('isRTL'));
+       },
+
+
+       getAllDayHtml: function() {
+               return this.opt('allDayHtml') || htmlEscape(this.opt('allDayText'));
+       },
+
+
+       /* Navigation
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Generates HTML for an anchor to another view into the calendar.
+       // Will either generate an <a> tag or a non-clickable <span> tag, depending on enabled settings.
+       // `gotoOptions` can either be a moment input, or an object with the form:
+       // { date, type, forceOff }
+       // `type` is a view-type like "day" or "week". default value is "day".
+       // `attrs` and `innerHtml` are use to generate the rest of the HTML tag.
+       buildGotoAnchorHtml: function(gotoOptions, attrs, innerHtml) {
+               var date, type, forceOff;
+               var finalOptions;
+
+               if ($.isPlainObject(gotoOptions)) {
+                       date = gotoOptions.date;
+                       type = gotoOptions.type;
+                       forceOff = gotoOptions.forceOff;
+               }
+               else {
+                       date = gotoOptions; // a single moment input
+               }
+               date = FC.moment(date); // if a string, parse it
+
+               finalOptions = { // for serialization into the link
+                       date: date.format('YYYY-MM-DD'),
+                       type: type || 'day'
+               };
+
+               if (typeof attrs === 'string') {
+                       innerHtml = attrs;
+                       attrs = null;
+               }
+
+               attrs = attrs ? ' ' + attrsToStr(attrs) : ''; // will have a leading space
+               innerHtml = innerHtml || '';
+
+               if (!forceOff && this.opt('navLinks')) {
+                       return '<a' + attrs +
+                               ' data-goto="' + htmlEscape(JSON.stringify(finalOptions)) + '">' +
+                               innerHtml +
+                               '</a>';
+               }
+               else {
+                       return '<span' + attrs + '>' +
+                               innerHtml +
+                               '</span>';
+               }
+       },
+
+
+       // Rendering Non-date-related Content
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       // Sets the container element that the view should render inside of, does global DOM-related initializations,
+       // and renders all the non-date-related content inside.
+       setElement: function(el) {
+               this.el = el;
+               this.bindGlobalHandlers();
+               this.renderSkeleton();
+       },
+
+
+       // Removes the view's container element from the DOM, clearing any content beforehand.
+       // Undoes any other DOM-related attachments.
+       removeElement: function() {
+               this.unsetDate();
+               this.unrenderSkeleton();
+
+               this.unbindGlobalHandlers();
+
+               this.el.remove();
+               // NOTE: don't null-out this.el in case the View was destroyed within an API callback.
+               // We don't null-out the View's other jQuery element references upon destroy,
+               //  so we shouldn't kill this.el either.
+       },
+
+
+       // Renders the basic structure of the view before any content is rendered
+       renderSkeleton: function() {
+               // subclasses should implement
+       },
+
+
+       // Unrenders the basic structure of the view
+       unrenderSkeleton: function() {
+               // subclasses should implement
+       },
+
+
+       // Date Setting/Unsetting
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       setDate: function(date) {
+               var isReset = this.isDateSet;
+
+               this.isDateSet = true;
+               this.handleDate(date, isReset);
+               this.trigger(isReset ? 'dateReset' : 'dateSet', date);
+       },
+
+
+       unsetDate: function() {
+               if (this.isDateSet) {
+                       this.isDateSet = false;
+                       this.handleDateUnset();
+                       this.trigger('dateUnset');
+               }
+       },
+
+
+       // Date Handling
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       handleDate: function(date, isReset) {
+               var _this = this;
+
+               this.unbindEvents(); // will do nothing if not already bound
+               this.requestDateRender(date).then(function() {
+                       // wish we could start earlier, but setRange/computeRange needs to execute first
+                       _this.bindEvents(); // will request events
+               });
+       },
+
+
+       handleDateUnset: function() {
+               this.unbindEvents();
+               this.requestDateUnrender();
+       },
+
+
+       // Date Render Queuing
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       // if date not specified, uses current
+       requestDateRender: function(date) {
+               var _this = this;
+
+               return this.dateRenderQueue.add(function() {
+                       return _this.executeDateRender(date);
+               });
+       },
+
+
+       requestDateUnrender: function() {
+               var _this = this;
+
+               return this.dateRenderQueue.add(function() {
+                       return _this.executeDateUnrender();
+               });
+       },
+
+
+       // Date High-level Rendering
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       // if date not specified, uses current
+       executeDateRender: function(date) {
+               var _this = this;
+
+               // if rendering a new date, reset scroll to initial state (scrollTime)
+               if (date) {
+                       this.captureInitialScroll();
+               }
+               else {
+                       this.captureScroll(); // a rerender of the current date
+               }
+
+               this.freezeHeight();
+
+               return this.executeDateUnrender().then(function() {
+
+                       if (date) {
+                               _this.setRange(_this.computeRange(date));
+                       }
+
+                       if (_this.render) {
+                               _this.render(); // TODO: deprecate
+                       }
+
+                       _this.renderDates();
+                       _this.updateSize();
+                       _this.renderBusinessHours(); // might need coordinates, so should go after updateSize()
+                       _this.startNowIndicator();
+
+                       _this.thawHeight();
+                       _this.releaseScroll();
+
+                       _this.isDateRendered = true;
+                       _this.onDateRender();
+                       _this.trigger('dateRender');
+               });
+       },
+
+
+       executeDateUnrender: function() {
+               var _this = this;
+
+               if (_this.isDateRendered) {
+                       return this.requestEventsUnrender().then(function() {
+
+                               _this.unselect();
+                               _this.stopNowIndicator();
+                               _this.triggerUnrender();
+                               _this.unrenderBusinessHours();
+                               _this.unrenderDates();
+
+                               if (_this.destroy) {
+                                       _this.destroy(); // TODO: deprecate
+                               }
+
+                               _this.isDateRendered = false;
+                               _this.trigger('dateUnrender');
+                       });
+               }
+               else {
+                       return Promise.resolve();
+               }
+       },
+
+
+       // Date Rendering Triggers
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       onDateRender: function() {
+               this.triggerRender();
+       },
+
+
+       // Date Low-level Rendering
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       // date-cell content only
+       renderDates: function() {
+               // subclasses should implement
+       },
+
+
+       // date-cell content only
+       unrenderDates: function() {
+               // subclasses should override
+       },
+
+
+       // Misc view rendering utils
+       // -------------------------
+
+
+       // Signals that the view's content has been rendered
+       triggerRender: function() {
+               this.publiclyTrigger('viewRender', this, this, this.el);
+       },
+
+
+       // Signals that the view's content is about to be unrendered
+       triggerUnrender: function() {
+               this.publiclyTrigger('viewDestroy', this, this, this.el);
+       },
+
+
+       // Binds DOM handlers to elements that reside outside the view container, such as the document
+       bindGlobalHandlers: function() {
+               this.listenTo(GlobalEmitter.get(), {
+                       touchstart: this.processUnselect,
+                       mousedown: this.handleDocumentMousedown
+               });
+       },
+
+
+       // Unbinds DOM handlers from elements that reside outside the view container
+       unbindGlobalHandlers: function() {
+               this.stopListeningTo(GlobalEmitter.get());
+       },
+
+
+       // Initializes internal variables related to theming
+       initThemingProps: function() {
+               var tm = this.opt('theme') ? 'ui' : 'fc';
+
+               this.widgetHeaderClass = tm + '-widget-header';
+               this.widgetContentClass = tm + '-widget-content';
+               this.highlightStateClass = tm + '-state-highlight';
+       },
+
+
+       /* Business Hours
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders business-hours onto the view. Assumes updateSize has already been called.
+       renderBusinessHours: function() {
+               // subclasses should implement
+       },
+
+
+       // Unrenders previously-rendered business-hours
+       unrenderBusinessHours: function() {
+               // subclasses should implement
+       },
+
+
+       /* Now Indicator
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Immediately render the current time indicator and begins re-rendering it at an interval,
+       // which is defined by this.getNowIndicatorUnit().
+       // TODO: somehow do this for the current whole day's background too
+       startNowIndicator: function() {
+               var _this = this;
+               var unit;
+               var update;
+               var delay; // ms wait value
+
+               if (this.opt('nowIndicator')) {
+                       unit = this.getNowIndicatorUnit();
+                       if (unit) {
+                               update = proxy(this, 'updateNowIndicator'); // bind to `this`
+
+                               this.initialNowDate = this.calendar.getNow();
+                               this.initialNowQueriedMs = +new Date();
+                               this.renderNowIndicator(this.initialNowDate);
+                               this.isNowIndicatorRendered = true;
+
+                               // wait until the beginning of the next interval
+                               delay = this.initialNowDate.clone().startOf(unit).add(1, unit) - this.initialNowDate;
+                               this.nowIndicatorTimeoutID = setTimeout(function() {
+                                       _this.nowIndicatorTimeoutID = null;
+                                       update();
+                                       delay = +moment.duration(1, unit);
+                                       delay = Math.max(100, delay); // prevent too frequent
+                                       _this.nowIndicatorIntervalID = setInterval(update, delay); // update every interval
+                               }, delay);
+                       }
+               }
+       },
+
+
+       // rerenders the now indicator, computing the new current time from the amount of time that has passed
+       // since the initial getNow call.
+       updateNowIndicator: function() {
+               if (this.isNowIndicatorRendered) {
+                       this.unrenderNowIndicator();
+                       this.renderNowIndicator(
+                               this.initialNowDate.clone().add(new Date() - this.initialNowQueriedMs) // add ms
+                       );
+               }
+       },
+
+
+       // Immediately unrenders the view's current time indicator and stops any re-rendering timers.
+       // Won't cause side effects if indicator isn't rendered.
+       stopNowIndicator: function() {
+               if (this.isNowIndicatorRendered) {
+
+                       if (this.nowIndicatorTimeoutID) {
+                               clearTimeout(this.nowIndicatorTimeoutID);
+                               this.nowIndicatorTimeoutID = null;
+                       }
+                       if (this.nowIndicatorIntervalID) {
+                               clearTimeout(this.nowIndicatorIntervalID);
+                               this.nowIndicatorIntervalID = null;
+                       }
+
+                       this.unrenderNowIndicator();
+                       this.isNowIndicatorRendered = false;
+               }
+       },
+
+
+       // Returns a string unit, like 'second' or 'minute' that defined how often the current time indicator
+       // should be refreshed. If something falsy is returned, no time indicator is rendered at all.
+       getNowIndicatorUnit: function() {
+               // subclasses should implement
+       },
+
+
+       // Renders a current time indicator at the given datetime
+       renderNowIndicator: function(date) {
+               // subclasses should implement
+       },
+
+
+       // Undoes the rendering actions from renderNowIndicator
+       unrenderNowIndicator: function() {
+               // subclasses should implement
+       },
+
+
+       /* Dimensions
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Refreshes anything dependant upon sizing of the container element of the grid
+       updateSize: function(isResize) {
+
+               if (isResize) {
+                       this.captureScroll();
+               }
+
+               this.updateHeight(isResize);
+               this.updateWidth(isResize);
+               this.updateNowIndicator();
+
+               if (isResize) {
+                       this.releaseScroll();
+               }
+       },
+
+
+       // Refreshes the horizontal dimensions of the calendar
+       updateWidth: function(isResize) {
+               // subclasses should implement
+       },
+
+
+       // Refreshes the vertical dimensions of the calendar
+       updateHeight: function(isResize) {
+               var calendar = this.calendar; // we poll the calendar for height information
+
+               this.setHeight(
+                       calendar.getSuggestedViewHeight(),
+                       calendar.isHeightAuto()
+               );
+       },
+
+
+       // Updates the vertical dimensions of the calendar to the specified height.
+       // if `isAuto` is set to true, height becomes merely a suggestion and the view should use its "natural" height.
+       setHeight: function(height, isAuto) {
+               // subclasses should implement
+       },
+
+
+       /* Scroller
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       capturedScroll: null,
+       capturedScrollDepth: 0,
+
+
+       captureScroll: function() {
+               if (!(this.capturedScrollDepth++)) {
+                       this.capturedScroll = this.isDateRendered ? this.queryScroll() : {}; // require a render first
+                       return true; // root?
+               }
+               return false;
+       },
+
+
+       captureInitialScroll: function(forcedScroll) {
+               if (this.captureScroll()) { // root?
+                       this.capturedScroll.isInitial = true;
+
+                       if (forcedScroll) {
+                               $.extend(this.capturedScroll, forcedScroll);
+                       }
+                       else {
+                               this.capturedScroll.isComputed = true;
+                       }
+               }
+       },
+
+
+       releaseScroll: function() {
+               var scroll = this.capturedScroll;
+               var isRoot = this.discardScroll();
+
+               if (scroll.isComputed) {
+                       if (isRoot) {
+                               // only compute initial scroll if it will actually be used (is the root capture)
+                               $.extend(scroll, this.computeInitialScroll());
+                       }
+                       else {
+                               scroll = null; // scroll couldn't be computed. don't apply it to the DOM
+                       }
+               }
+
+               if (scroll) {
+                       // we act immediately on a releaseScroll operation, as opposed to captureScroll.
+                       // if capture/release wraps a render operation that screws up the scroll,
+                       // we still want to restore it a good state after, regardless of depth.
+
+                       if (scroll.isInitial) {
+                               this.hardSetScroll(scroll); // outsmart how browsers set scroll on initial DOM
+                       }
+                       else {
+                               this.setScroll(scroll);
+                       }
+               }
+       },
+
+
+       discardScroll: function() {
+               if (!(--this.capturedScrollDepth)) {
+                       this.capturedScroll = null;
+                       return true; // root?
+               }
+               return false;
+       },
+
+
+       computeInitialScroll: function() {
+               return {};
+       },
+
+
+       queryScroll: function() {
+               return {};
+       },
+
+
+       hardSetScroll: function(scroll) {
+               var _this = this;
+               var exec = function() { _this.setScroll(scroll); };
+               exec();
+               setTimeout(exec, 0); // to surely clear the browser's initial scroll for the DOM
+       },
+
+
+       setScroll: function(scroll) {
+       },
+
+
+       /* Height Freezing
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       freezeHeight: function() {
+               this.calendar.freezeContentHeight();
+       },
+
+
+       thawHeight: function() {
+               this.calendar.thawContentHeight();
+       },
+
+
+       // Event Binding/Unbinding
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       bindEvents: function() {
+               var _this = this;
+
+               if (!this.isEventsBound) {
+                       this.isEventsBound = true;
+                       this.rejectOn('eventsUnbind', this.requestEvents()).then(function(events) { // TODO: test rejection
+                               _this.listenTo(_this.calendar, 'eventsReset', _this.setEvents);
+                               _this.setEvents(events);
+                       });
+               }
+       },
+
+
+       unbindEvents: function() {
+               if (this.isEventsBound) {
+                       this.isEventsBound = false;
+                       this.stopListeningTo(this.calendar, 'eventsReset');
+                       this.unsetEvents();
+                       this.trigger('eventsUnbind');
+               }
+       },
+
+
+       // Event Setting/Unsetting
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       setEvents: function(events) {
+               var isReset = this.isEventSet;
+
+               this.isEventsSet = true;
+               this.handleEvents(events, isReset);
+               this.trigger(isReset ? 'eventsReset' : 'eventsSet', events);
+       },
+
+
+       unsetEvents: function() {
+               if (this.isEventsSet) {
+                       this.isEventsSet = false;
+                       this.handleEventsUnset();
+                       this.trigger('eventsUnset');
+               }
+       },
+
+
+       whenEventsSet: function() {
+               var _this = this;
+
+               if (this.isEventsSet) {
+                       return Promise.resolve(this.getCurrentEvents());
+               }
+               else {
+                       return new Promise(function(resolve) {
+                               _this.one('eventsSet', resolve);
+                       });
+               }
+       },
+
+
+       // Event Handling
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       handleEvents: function(events, isReset) {
+               this.requestEventsRender(events);
+       },
+
+
+       handleEventsUnset: function() {
+               this.requestEventsUnrender();
+       },
+
+
+       // Event Render Queuing
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       // assumes any previous event renders have been cleared already
+       requestEventsRender: function(events) {
+               var _this = this;
+
+               return this.eventRenderQueue.add(function() { // might not return a promise if debounced!? bad
+                       return _this.executeEventsRender(events);
+               });
+       },
+
+
+       requestEventsUnrender: function() {
+               var _this = this;
+
+               if (this.isEventsRendered) {
+                       return this.eventRenderQueue.addQuickly(function() {
+                               return _this.executeEventsUnrender();
+                       });
+               }
+               else {
+                       return Promise.resolve();
+               }
+       },
+
+
+       requestCurrentEventsRender: function() {
+               if (this.isEventsSet) {
+                       this.requestEventsRender(this.getCurrentEvents());
+               }
+               else {
+                       return Promise.reject();
+               }
+       },
+
+
+       // Event High-level Rendering
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       executeEventsRender: function(events) {
+               var _this = this;
+
+               this.captureScroll();
+               this.freezeHeight();
+
+               return this.executeEventsUnrender().then(function() {
+                       _this.renderEvents(events);
+
+                       _this.thawHeight();
+                       _this.releaseScroll();
+
+                       _this.isEventsRendered = true;
+                       _this.onEventsRender();
+                       _this.trigger('eventsRender');
+               });
+       },
+
+
+       executeEventsUnrender: function() {
+               if (this.isEventsRendered) {
+                       this.onBeforeEventsUnrender();
+
+                       this.captureScroll();
+                       this.freezeHeight();
+
+                       if (this.destroyEvents) {
+                               this.destroyEvents(); // TODO: deprecate
+                       }
+
+                       this.unrenderEvents();
+
+                       this.thawHeight();
+                       this.releaseScroll();
+
+                       this.isEventsRendered = false;
+                       this.trigger('eventsUnrender');
+               }
+
+               return Promise.resolve(); // always synchronous
+       },
+
+
+       // Event Rendering Triggers
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       // Signals that all events have been rendered
+       onEventsRender: function() {
+               this.renderedEventSegEach(function(seg) {
+                       this.publiclyTrigger('eventAfterRender', seg.event, seg.event, seg.el);
+               });
+               this.publiclyTrigger('eventAfterAllRender');
+       },
+
+
+       // Signals that all event elements are about to be removed
+       onBeforeEventsUnrender: function() {
+               this.renderedEventSegEach(function(seg) {
+                       this.publiclyTrigger('eventDestroy', seg.event, seg.event, seg.el);
+               });
+       },
+
+
+       // Event Low-level Rendering
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       // Renders the events onto the view.
+       renderEvents: function(events) {
+               // subclasses should implement
+       },
+
+
+       // Removes event elements from the view.
+       unrenderEvents: function() {
+               // subclasses should implement
+       },
+
+
+       // Event Data Access
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       requestEvents: function() {
+               return this.calendar.requestEvents(this.start, this.end);
+       },
+
+
+       getCurrentEvents: function() {
+               return this.calendar.getPrunedEventCache();
+       },
+
+
+       // Event Rendering Utils
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       // Given an event and the default element used for rendering, returns the element that should actually be used.
+       // Basically runs events and elements through the eventRender hook.
+       resolveEventEl: function(event, el) {
+               var custom = this.publiclyTrigger('eventRender', event, event, el);
+
+               if (custom === false) { // means don't render at all
+                       el = null;
+               }
+               else if (custom && custom !== true) {
+                       el = $(custom);
+               }
+
+               return el;
+       },
+
+
+       // Hides all rendered event segments linked to the given event
+       showEvent: function(event) {
+               this.renderedEventSegEach(function(seg) {
+                       seg.el.css('visibility', '');
+               }, event);
+       },
+
+
+       // Shows all rendered event segments linked to the given event
+       hideEvent: function(event) {
+               this.renderedEventSegEach(function(seg) {
+                       seg.el.css('visibility', 'hidden');
+               }, event);
+       },
+
+
+       // Iterates through event segments that have been rendered (have an el). Goes through all by default.
+       // If the optional `event` argument is specified, only iterates through segments linked to that event.
+       // The `this` value of the callback function will be the view.
+       renderedEventSegEach: function(func, event) {
+               var segs = this.getEventSegs();
+               var i;
+
+               for (i = 0; i < segs.length; i++) {
+                       if (!event || segs[i].event._id === event._id) {
+                               if (segs[i].el) {
+                                       func.call(this, segs[i]);
+                               }
+                       }
+               }
+       },
+
+
+       // Retrieves all the rendered segment objects for the view
+       getEventSegs: function() {
+               // subclasses must implement
+               return [];
+       },
+
+
+       /* Event Drag-n-Drop
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Computes if the given event is allowed to be dragged by the user
+       isEventDraggable: function(event) {
+               return this.isEventStartEditable(event);
+       },
+
+
+       isEventStartEditable: function(event) {
+               return firstDefined(
+                       event.startEditable,
+                       (event.source || {}).startEditable,
+                       this.opt('eventStartEditable'),
+                       this.isEventGenerallyEditable(event)
+               );
+       },
+
+
+       isEventGenerallyEditable: function(event) {
+               return firstDefined(
+                       event.editable,
+                       (event.source || {}).editable,
+                       this.opt('editable')
+               );
+       },
+
+
+       // Must be called when an event in the view is dropped onto new location.
+       // `dropLocation` is an object that contains the new zoned start/end/allDay values for the event.
+       reportSegDrop: function(seg, dropLocation, largeUnit, el, ev) {
+               var calendar = this.calendar;
+               var mutateResult = calendar.mutateSeg(seg, dropLocation, largeUnit);
+               var undoFunc = function() {
+                       mutateResult.undo();
+                       calendar.reportEventChange();
+               };
+
+               this.triggerEventDrop(seg.event, mutateResult.dateDelta, undoFunc, el, ev);
+               calendar.reportEventChange(); // will rerender events
+       },
+
+
+       // Triggers event-drop handlers that have subscribed via the API
+       triggerEventDrop: function(event, dateDelta, undoFunc, el, ev) {
+               this.publiclyTrigger('eventDrop', el[0], event, dateDelta, undoFunc, ev, {}); // {} = jqui dummy
+       },
+
+
+       /* External Element Drag-n-Drop
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Must be called when an external element, via jQuery UI, has been dropped onto the calendar.
+       // `meta` is the parsed data that has been embedded into the dragging event.
+       // `dropLocation` is an object that contains the new zoned start/end/allDay values for the event.
+       reportExternalDrop: function(meta, dropLocation, el, ev, ui) {
+               var eventProps = meta.eventProps;
+               var eventInput;
+               var event;
+
+               // Try to build an event object and render it. TODO: decouple the two
+               if (eventProps) {
+                       eventInput = $.extend({}, eventProps, dropLocation);
+                       event = this.calendar.renderEvent(eventInput, meta.stick)[0]; // renderEvent returns an array
+               }
+
+               this.triggerExternalDrop(event, dropLocation, el, ev, ui);
+       },
+
+
+       // Triggers external-drop handlers that have subscribed via the API
+       triggerExternalDrop: function(event, dropLocation, el, ev, ui) {
+
+               // trigger 'drop' regardless of whether element represents an event
+               this.publiclyTrigger('drop', el[0], dropLocation.start, ev, ui);
+
+               if (event) {
+                       this.publiclyTrigger('eventReceive', null, event); // signal an external event landed
+               }
+       },
+
+
+       /* Drag-n-Drop Rendering (for both events and external elements)
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a visual indication of a event or external-element drag over the given drop zone.
+       // If an external-element, seg will be `null`.
+       // Must return elements used for any mock events.
+       renderDrag: function(dropLocation, seg) {
+               // subclasses must implement
+       },
+
+
+       // Unrenders a visual indication of an event or external-element being dragged.
+       unrenderDrag: function() {
+               // subclasses must implement
+       },
+
+
+       /* Event Resizing
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Computes if the given event is allowed to be resized from its starting edge
+       isEventResizableFromStart: function(event) {
+               return this.opt('eventResizableFromStart') && this.isEventResizable(event);
+       },
+
+
+       // Computes if the given event is allowed to be resized from its ending edge
+       isEventResizableFromEnd: function(event) {
+               return this.isEventResizable(event);
+       },
+
+
+       // Computes if the given event is allowed to be resized by the user at all
+       isEventResizable: function(event) {
+               var source = event.source || {};
+
+               return firstDefined(
+                       event.durationEditable,
+                       source.durationEditable,
+                       this.opt('eventDurationEditable'),
+                       event.editable,
+                       source.editable,
+                       this.opt('editable')
+               );
+       },
+
+
+       // Must be called when an event in the view has been resized to a new length
+       reportSegResize: function(seg, resizeLocation, largeUnit, el, ev) {
+               var calendar = this.calendar;
+               var mutateResult = calendar.mutateSeg(seg, resizeLocation, largeUnit);
+               var undoFunc = function() {
+                       mutateResult.undo();
+                       calendar.reportEventChange();
+               };
+
+               this.triggerEventResize(seg.event, mutateResult.durationDelta, undoFunc, el, ev);
+               calendar.reportEventChange(); // will rerender events
+       },
+
+
+       // Triggers event-resize handlers that have subscribed via the API
+       triggerEventResize: function(event, durationDelta, undoFunc, el, ev) {
+               this.publiclyTrigger('eventResize', el[0], event, durationDelta, undoFunc, ev, {}); // {} = jqui dummy
+       },
+
+
+       /* Selection (time range)
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Selects a date span on the view. `start` and `end` are both Moments.
+       // `ev` is the native mouse event that begin the interaction.
+       select: function(span, ev) {
+               this.unselect(ev);
+               this.renderSelection(span);
+               this.reportSelection(span, ev);
+       },
+
+
+       // Renders a visual indication of the selection
+       renderSelection: function(span) {
+               // subclasses should implement
+       },
+
+
+       // Called when a new selection is made. Updates internal state and triggers handlers.
+       reportSelection: function(span, ev) {
+               this.isSelected = true;
+               this.triggerSelect(span, ev);
+       },
+
+
+       // Triggers handlers to 'select'
+       triggerSelect: function(span, ev) {
+               this.publiclyTrigger(
+                       'select',
+                       null,
+                       this.calendar.applyTimezone(span.start), // convert to calendar's tz for external API
+                       this.calendar.applyTimezone(span.end), // "
+                       ev
+               );
+       },
+
+
+       // Undoes a selection. updates in the internal state and triggers handlers.
+       // `ev` is the native mouse event that began the interaction.
+       unselect: function(ev) {
+               if (this.isSelected) {
+                       this.isSelected = false;
+                       if (this.destroySelection) {
+                               this.destroySelection(); // TODO: deprecate
+                       }
+                       this.unrenderSelection();
+                       this.publiclyTrigger('unselect', null, ev);
+               }
+       },
+
+
+       // Unrenders a visual indication of selection
+       unrenderSelection: function() {
+               // subclasses should implement
+       },
+
+
+       /* Event Selection
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       selectEvent: function(event) {
+               if (!this.selectedEvent || this.selectedEvent !== event) {
+                       this.unselectEvent();
+                       this.renderedEventSegEach(function(seg) {
+                               seg.el.addClass('fc-selected');
+                       }, event);
+                       this.selectedEvent = event;
+               }
+       },
+
+
+       unselectEvent: function() {
+               if (this.selectedEvent) {
+                       this.renderedEventSegEach(function(seg) {
+                               seg.el.removeClass('fc-selected');
+                       }, this.selectedEvent);
+                       this.selectedEvent = null;
+               }
+       },
+
+
+       isEventSelected: function(event) {
+               // event references might change on refetchEvents(), while selectedEvent doesn't,
+               // so compare IDs
+               return this.selectedEvent && this.selectedEvent._id === event._id;
+       },
+
+
+       /* Mouse / Touch Unselecting (time range & event unselection)
+       ------------------------------------------------------------------------------------------------------------------*/
+       // TODO: move consistently to down/start or up/end?
+       // TODO: don't kill previous selection if touch scrolling
+
+
+       handleDocumentMousedown: function(ev) {
+               if (isPrimaryMouseButton(ev)) {
+                       this.processUnselect(ev);
+               }
+       },
+
+
+       processUnselect: function(ev) {
+               this.processRangeUnselect(ev);
+               this.processEventUnselect(ev);
+       },
+
+
+       processRangeUnselect: function(ev) {
+               var ignore;
+
+               // is there a time-range selection?
+               if (this.isSelected && this.opt('unselectAuto')) {
+                       // only unselect if the clicked element is not identical to or inside of an 'unselectCancel' element
+                       ignore = this.opt('unselectCancel');
+                       if (!ignore || !$(ev.target).closest(ignore).length) {
+                               this.unselect(ev);
+                       }
+               }
+       },
+
+
+       processEventUnselect: function(ev) {
+               if (this.selectedEvent) {
+                       if (!$(ev.target).closest('.fc-selected').length) {
+                               this.unselectEvent();
+                       }
+               }
+       },
+
+
+       /* Day Click
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Triggers handlers to 'dayClick'
+       // Span has start/end of the clicked area. Only the start is useful.
+       triggerDayClick: function(span, dayEl, ev) {
+               this.publiclyTrigger(
+                       'dayClick',
+                       dayEl,
+                       this.calendar.applyTimezone(span.start), // convert to calendar's timezone for external API
+                       ev
+               );
+       },
+
+
+       /* Date Utils
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Initializes internal variables related to calculating hidden days-of-week
+       initHiddenDays: function() {
+               var hiddenDays = this.opt('hiddenDays') || []; // array of day-of-week indices that are hidden
+               var isHiddenDayHash = []; // is the day-of-week hidden? (hash with day-of-week-index -> bool)
+               var dayCnt = 0;
+               var i;
+
+               if (this.opt('weekends') === false) {
+                       hiddenDays.push(0, 6); // 0=sunday, 6=saturday
+               }
+
+               for (i = 0; i < 7; i++) {
+                       if (
+                               !(isHiddenDayHash[i] = $.inArray(i, hiddenDays) !== -1)
+                       ) {
+                               dayCnt++;
+                       }
+               }
+
+               if (!dayCnt) {
+                       throw 'invalid hiddenDays'; // all days were hidden? bad.
+               }
+
+               this.isHiddenDayHash = isHiddenDayHash;
+       },
+
+
+       // Is the current day hidden?
+       // `day` is a day-of-week index (0-6), or a Moment
+       isHiddenDay: function(day) {
+               if (moment.isMoment(day)) {
+                       day = day.day();
+               }
+               return this.isHiddenDayHash[day];
+       },
+
+
+       // Incrementing the current day until it is no longer a hidden day, returning a copy.
+       // If the initial value of `date` is not a hidden day, don't do anything.
+       // Pass `isExclusive` as `true` if you are dealing with an end date.
+       // `inc` defaults to `1` (increment one day forward each time)
+       skipHiddenDays: function(date, inc, isExclusive) {
+               var out = date.clone();
+               inc = inc || 1;
+               while (
+                       this.isHiddenDayHash[(out.day() + (isExclusive ? inc : 0) + 7) % 7]
+               ) {
+                       out.add(inc, 'days');
+               }
+               return out;
+       },
+
+
+       // Returns the date range of the full days the given range visually appears to occupy.
+       // Returns a new range object.
+       computeDayRange: function(range) {
+               var startDay = range.start.clone().stripTime(); // the beginning of the day the range starts
+               var end = range.end;
+               var endDay = null;
+               var endTimeMS;
+
+               if (end) {
+                       endDay = end.clone().stripTime(); // the beginning of the day the range exclusively ends
+                       endTimeMS = +end.time(); // # of milliseconds into `endDay`
+
+                       // If the end time is actually inclusively part of the next day and is equal to or
+                       // beyond the next day threshold, adjust the end to be the exclusive end of `endDay`.
+                       // Otherwise, leaving it as inclusive will cause it to exclude `endDay`.
+                       if (endTimeMS && endTimeMS >= this.nextDayThreshold) {
+                               endDay.add(1, 'days');
+                       }
+               }
+
+               // If no end was specified, or if it is within `startDay` but not past nextDayThreshold,
+               // assign the default duration of one day.
+               if (!end || endDay <= startDay) {
+                       endDay = startDay.clone().add(1, 'days');
+               }
+
+               return { start: startDay, end: endDay };
+       },
+
+
+       // Does the given event visually appear to occupy more than one day?
+       isMultiDayEvent: function(event) {
+               var range = this.computeDayRange(event); // event is range-ish
+
+               return range.end.diff(range.start, 'days') > 1;
+       }
+
+});
+
+;;
+
+/*
+Embodies a div that has potential scrollbars
+*/
+var Scroller = FC.Scroller = Class.extend({
+
+       el: null, // the guaranteed outer element
+       scrollEl: null, // the element with the scrollbars
+       overflowX: null,
+       overflowY: null,
+
+
+       constructor: function(options) {
+               options = options || {};
+               this.overflowX = options.overflowX || options.overflow || 'auto';
+               this.overflowY = options.overflowY || options.overflow || 'auto';
+       },
+
+
+       render: function() {
+               this.el = this.renderEl();
+               this.applyOverflow();
+       },
+
+
+       renderEl: function() {
+               return (this.scrollEl = $('<div class="fc-scroller"></div>'));
+       },
+
+
+       // sets to natural height, unlocks overflow
+       clear: function() {
+               this.setHeight('auto');
+               this.applyOverflow();
+       },
+
+
+       destroy: function() {
+               this.el.remove();
+       },
+
+
+       // Overflow
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       applyOverflow: function() {
+               this.scrollEl.css({
+                       'overflow-x': this.overflowX,
+                       'overflow-y': this.overflowY
+               });
+       },
+
+
+       // Causes any 'auto' overflow values to resolves to 'scroll' or 'hidden'.
+       // Useful for preserving scrollbar widths regardless of future resizes.
+       // Can pass in scrollbarWidths for optimization.
+       lockOverflow: function(scrollbarWidths) {
+               var overflowX = this.overflowX;
+               var overflowY = this.overflowY;
+
+               scrollbarWidths = scrollbarWidths || this.getScrollbarWidths();
+
+               if (overflowX === 'auto') {
+                       overflowX = (
+                                       scrollbarWidths.top || scrollbarWidths.bottom || // horizontal scrollbars?
+                                       // OR scrolling pane with massless scrollbars?
+                                       this.scrollEl[0].scrollWidth - 1 > this.scrollEl[0].clientWidth
+                                               // subtract 1 because of IE off-by-one issue
+                               ) ? 'scroll' : 'hidden';
+               }
+
+               if (overflowY === 'auto') {
+                       overflowY = (
+                                       scrollbarWidths.left || scrollbarWidths.right || // vertical scrollbars?
+                                       // OR scrolling pane with massless scrollbars?
+                                       this.scrollEl[0].scrollHeight - 1 > this.scrollEl[0].clientHeight
+                                               // subtract 1 because of IE off-by-one issue
+                               ) ? 'scroll' : 'hidden';
+               }
+
+               this.scrollEl.css({ 'overflow-x': overflowX, 'overflow-y': overflowY });
+       },
+
+
+       // Getters / Setters
+       // -----------------------------------------------------------------------------------------------------------------
+
+
+       setHeight: function(height) {
+               this.scrollEl.height(height);
+       },
+
+
+       getScrollTop: function() {
+               return this.scrollEl.scrollTop();
+       },
+
+
+       setScrollTop: function(top) {
+               this.scrollEl.scrollTop(top);
+       },
+
+
+       getClientWidth: function() {
+               return this.scrollEl[0].clientWidth;
+       },
+
+
+       getClientHeight: function() {
+               return this.scrollEl[0].clientHeight;
+       },
+
+
+       getScrollbarWidths: function() {
+               return getScrollbarWidths(this.scrollEl);
+       }
+
+});
+
+;;
+function Iterator(items) {
+    this.items = items || [];
+}
+
+
+/* Calls a method on every item passing the arguments through */
+Iterator.prototype.proxyCall = function(methodName) {
+    var args = Array.prototype.slice.call(arguments, 1);
+    var results = [];
+
+    this.items.forEach(function(item) {
+        results.push(item[methodName].apply(item, args));
+    });
+
+    return results;
+};
+
+;;
+
+/* Toolbar with buttons and title
+----------------------------------------------------------------------------------------------------------------------*/
+
+function Toolbar(calendar, toolbarOptions) {
+       var t = this;
+
+       // exports
+       t.setToolbarOptions = setToolbarOptions;
+       t.render = render;
+       t.removeElement = removeElement;
+       t.updateTitle = updateTitle;
+       t.activateButton = activateButton;
+       t.deactivateButton = deactivateButton;
+       t.disableButton = disableButton;
+       t.enableButton = enableButton;
+       t.getViewsWithButtons = getViewsWithButtons;
+       t.el = null; // mirrors local `el`
+
+       // locals
+       var el;
+       var viewsWithButtons = [];
+       var tm;
+
+       // method to update toolbar-specific options, not calendar-wide options
+       function setToolbarOptions(newToolbarOptions) {
+               toolbarOptions = newToolbarOptions;
+       }
+
+       // can be called repeatedly and will rerender
+       function render() {
+               var sections = toolbarOptions.layout;
+
+               tm = calendar.options.theme ? 'ui' : 'fc';
+
+               if (sections) {
+                       if (!el) {
+                               el = this.el = $("<div class='fc-toolbar "+ toolbarOptions.extraClasses + "'/>");
+                       }
+                       else {
+                               el.empty();
+                       }
+                       el.append(renderSection('left'))
+                               .append(renderSection('right'))
+                               .append(renderSection('center'))
+                               .append('<div class="fc-clear"/>');
+               }
+               else {
+                       removeElement();
+               }
+       }
+
+
+       function removeElement() {
+               if (el) {
+                       el.remove();
+                       el = t.el = null;
+               }
+       }
+
+
+       function renderSection(position) {
+               var sectionEl = $('<div class="fc-' + position + '"/>');
+               var buttonStr = toolbarOptions.layout[position];
+
+               if (buttonStr) {
+                       $.each(buttonStr.split(' '), function(i) {
+                               var groupChildren = $();
+                               var isOnlyButtons = true;
+                               var groupEl;
+
+                               $.each(this.split(','), function(j, buttonName) {
+                                       var customButtonProps;
+                                       var viewSpec;
+                                       var buttonClick;
+                                       var overrideText; // text explicitly set by calendar's constructor options. overcomes icons
+                                       var defaultText;
+                                       var themeIcon;
+                                       var normalIcon;
+                                       var innerHtml;
+                                       var classes;
+                                       var button; // the element
+
+                                       if (buttonName == 'title') {
+                                               groupChildren = groupChildren.add($('<h2>&nbsp;</h2>')); // we always want it to take up height
+                                               isOnlyButtons = false;
+                                       }
+                                       else {
+                                               if ((customButtonProps = (calendar.options.customButtons || {})[buttonName])) {
+                                                       buttonClick = function(ev) {
+                                                               if (customButtonProps.click) {
+                                                                       customButtonProps.click.call(button[0], ev);
+                                                               }
+                                                       };
+                                                       overrideText = ''; // icons will override text
+                                                       defaultText = customButtonProps.text;
+                                               }
+                                               else if ((viewSpec = calendar.getViewSpec(buttonName))) {
+                                                       buttonClick = function() {
+                                                               calendar.changeView(buttonName);
+                                                       };
+                                                       viewsWithButtons.push(buttonName);
+                                                       overrideText = viewSpec.buttonTextOverride;
+                                                       defaultText = viewSpec.buttonTextDefault;
+                                               }
+                                               else if (calendar[buttonName]) { // a calendar method
+                                                       buttonClick = function() {
+                                                               calendar[buttonName]();
+                                                       };
+                                                       overrideText = (calendar.overrides.buttonText || {})[buttonName];
+                                                       defaultText = calendar.options.buttonText[buttonName]; // everything else is considered default
+                                               }
+
+                                               if (buttonClick) {
+
+                                                       themeIcon =
+                                                               customButtonProps ?
+                                                                       customButtonProps.themeIcon :
+                                                                       calendar.options.themeButtonIcons[buttonName];
+
+                                                       normalIcon =
+                                                               customButtonProps ?
+                                                                       customButtonProps.icon :
+                                                                       calendar.options.buttonIcons[buttonName];
+
+                                                       if (overrideText) {
+                                                               innerHtml = htmlEscape(overrideText);
+                                                       }
+                                                       else if (themeIcon && calendar.options.theme) {
+                                                               innerHtml = "<span class='ui-icon ui-icon-" + themeIcon + "'></span>";
+                                                       }
+                                                       else if (normalIcon && !calendar.options.theme) {
+                                                               innerHtml = "<span class='fc-icon fc-icon-" + normalIcon + "'></span>";
+                                                       }
+                                                       else {
+                                                               innerHtml = htmlEscape(defaultText);
+                                                       }
+
+                                                       classes = [
+                                                               'fc-' + buttonName + '-button',
+                                                               tm + '-button',
+                                                               tm + '-state-default'
+                                                       ];
+
+                                                       button = $( // type="button" so that it doesn't submit a form
+                                                               '<button type="button" class="' + classes.join(' ') + '">' +
+                                                                       innerHtml +
+                                                               '</button>'
+                                                               )
+                                                               .click(function(ev) {
+                                                                       // don't process clicks for disabled buttons
+                                                                       if (!button.hasClass(tm + '-state-disabled')) {
+
+                                                                               buttonClick(ev);
+
+                                                                               // after the click action, if the button becomes the "active" tab, or disabled,
+                                                                               // it should never have a hover class, so remove it now.
+                                                                               if (
+                                                                                       button.hasClass(tm + '-state-active') ||
+                                                                                       button.hasClass(tm + '-state-disabled')
+                                                                               ) {
+                                                                                       button.removeClass(tm + '-state-hover');
+                                                                               }
+                                                                       }
+                                                               })
+                                                               .mousedown(function() {
+                                                                       // the *down* effect (mouse pressed in).
+                                                                       // only on buttons that are not the "active" tab, or disabled
+                                                                       button
+                                                                               .not('.' + tm + '-state-active')
+                                                                               .not('.' + tm + '-state-disabled')
+                                                                               .addClass(tm + '-state-down');
+                                                               })
+                                                               .mouseup(function() {
+                                                                       // undo the *down* effect
+                                                                       button.removeClass(tm + '-state-down');
+                                                               })
+                                                               .hover(
+                                                                       function() {
+                                                                               // the *hover* effect.
+                                                                               // only on buttons that are not the "active" tab, or disabled
+                                                                               button
+                                                                                       .not('.' + tm + '-state-active')
+                                                                                       .not('.' + tm + '-state-disabled')
+                                                                                       .addClass(tm + '-state-hover');
+                                                                       },
+                                                                       function() {
+                                                                               // undo the *hover* effect
+                                                                               button
+                                                                                       .removeClass(tm + '-state-hover')
+                                                                                       .removeClass(tm + '-state-down'); // if mouseleave happens before mouseup
+                                                                       }
+                                                               );
+
+                                                       groupChildren = groupChildren.add(button);
+                                               }
+                                       }
+                               });
+
+                               if (isOnlyButtons) {
+                                       groupChildren
+                                               .first().addClass(tm + '-corner-left').end()
+                                               .last().addClass(tm + '-corner-right').end();
+                               }
+
+                               if (groupChildren.length > 1) {
+                                       groupEl = $('<div/>');
+                                       if (isOnlyButtons) {
+                                               groupEl.addClass('fc-button-group');
+                                       }
+                                       groupEl.append(groupChildren);
+                                       sectionEl.append(groupEl);
+                               }
+                               else {
+                                       sectionEl.append(groupChildren); // 1 or 0 children
+                               }
+                       });
+               }
+
+               return sectionEl;
+       }
+
+
+       function updateTitle(text) {
+               if (el) {
+                       el.find('h2').text(text);
+               }
+       }
+
+
+       function activateButton(buttonName) {
+               if (el) {
+                       el.find('.fc-' + buttonName + '-button')
+                               .addClass(tm + '-state-active');
+               }
+       }
+
+
+       function deactivateButton(buttonName) {
+               if (el) {
+                       el.find('.fc-' + buttonName + '-button')
+                               .removeClass(tm + '-state-active');
+               }
+       }
+
+
+       function disableButton(buttonName) {
+               if (el) {
+                       el.find('.fc-' + buttonName + '-button')
+                               .prop('disabled', true)
+                               .addClass(tm + '-state-disabled');
+               }
+       }
+
+
+       function enableButton(buttonName) {
+               if (el) {
+                       el.find('.fc-' + buttonName + '-button')
+                               .prop('disabled', false)
+                               .removeClass(tm + '-state-disabled');
+               }
+       }
+
+
+       function getViewsWithButtons() {
+               return viewsWithButtons;
+       }
+
+}
+
+;;
+
+var Calendar = FC.Calendar = Class.extend({
+
+       dirDefaults: null, // option defaults related to LTR or RTL
+       localeDefaults: null, // option defaults related to current locale
+       overrides: null, // option overrides given to the fullCalendar constructor
+       dynamicOverrides: null, // options set with dynamic setter method. higher precedence than view overrides.
+       options: null, // all defaults combined with overrides
+       viewSpecCache: null, // cache of view definitions
+       view: null, // current View object
+       header: null,
+       footer: null,
+       loadingLevel: 0, // number of simultaneous loading tasks
+
+
+       // a lot of this class' OOP logic is scoped within this constructor function,
+       // but in the future, write individual methods on the prototype.
+       constructor: Calendar_constructor,
+
+
+       // Subclasses can override this for initialization logic after the constructor has been called
+       initialize: function() {
+       },
+
+
+       // Computes the flattened options hash for the calendar and assigns to `this.options`.
+       // Assumes this.overrides and this.dynamicOverrides have already been initialized.
+       populateOptionsHash: function() {
+               var locale, localeDefaults;
+               var isRTL, dirDefaults;
+
+               locale = firstDefined( // explicit locale option given?
+                       this.dynamicOverrides.locale,
+                       this.overrides.locale
+               );
+               localeDefaults = localeOptionHash[locale];
+               if (!localeDefaults) { // explicit locale option not given or invalid?
+                       locale = Calendar.defaults.locale;
+                       localeDefaults = localeOptionHash[locale] || {};
+               }
+
+               isRTL = firstDefined( // based on options computed so far, is direction RTL?
+                       this.dynamicOverrides.isRTL,
+                       this.overrides.isRTL,
+                       localeDefaults.isRTL,
+                       Calendar.defaults.isRTL
+               );
+               dirDefaults = isRTL ? Calendar.rtlDefaults : {};
+
+               this.dirDefaults = dirDefaults;
+               this.localeDefaults = localeDefaults;
+               this.options = mergeOptions([ // merge defaults and overrides. lowest to highest precedence
+                       Calendar.defaults, // global defaults
+                       dirDefaults,
+                       localeDefaults,
+                       this.overrides,
+                       this.dynamicOverrides
+               ]);
+               populateInstanceComputableOptions(this.options); // fill in gaps with computed options
+       },
+
+
+       // Gets information about how to create a view. Will use a cache.
+       getViewSpec: function(viewType) {
+               var cache = this.viewSpecCache;
+
+               return cache[viewType] || (cache[viewType] = this.buildViewSpec(viewType));
+       },
+
+
+       // Given a duration singular unit, like "week" or "day", finds a matching view spec.
+       // Preference is given to views that have corresponding buttons.
+       getUnitViewSpec: function(unit) {
+               var viewTypes;
+               var i;
+               var spec;
+
+               if ($.inArray(unit, intervalUnits) != -1) {
+
+                       // put views that have buttons first. there will be duplicates, but oh well
+                       viewTypes = this.header.getViewsWithButtons(); // TODO: include footer as well?
+                       $.each(FC.views, function(viewType) { // all views
+                               viewTypes.push(viewType);
+                       });
+
+                       for (i = 0; i < viewTypes.length; i++) {
+                               spec = this.getViewSpec(viewTypes[i]);
+                               if (spec) {
+                                       if (spec.singleUnit == unit) {
+                                               return spec;
+                                       }
+                               }
+                       }
+               }
+       },
+
+
+       // Builds an object with information on how to create a given view
+       buildViewSpec: function(requestedViewType) {
+               var viewOverrides = this.overrides.views || {};
+               var specChain = []; // for the view. lowest to highest priority
+               var defaultsChain = []; // for the view. lowest to highest priority
+               var overridesChain = []; // for the view. lowest to highest priority
+               var viewType = requestedViewType;
+               var spec; // for the view
+               var overrides; // for the view
+               var duration;
+               var unit;
+
+               // iterate from the specific view definition to a more general one until we hit an actual View class
+               while (viewType) {
+                       spec = fcViews[viewType];
+                       overrides = viewOverrides[viewType];
+                       viewType = null; // clear. might repopulate for another iteration
+
+                       if (typeof spec === 'function') { // TODO: deprecate
+                               spec = { 'class': spec };
+                       }
+
+                       if (spec) {
+                               specChain.unshift(spec);
+                               defaultsChain.unshift(spec.defaults || {});
+                               duration = duration || spec.duration;
+                               viewType = viewType || spec.type;
+                       }
+
+                       if (overrides) {
+                               overridesChain.unshift(overrides); // view-specific option hashes have options at zero-level
+                               duration = duration || overrides.duration;
+                               viewType = viewType || overrides.type;
+                       }
+               }
+
+               spec = mergeProps(specChain);
+               spec.type = requestedViewType;
+               if (!spec['class']) {
+                       return false;
+               }
+
+               if (duration) {
+                       duration = moment.duration(duration);
+                       if (duration.valueOf()) { // valid?
+                               spec.duration = duration;
+                               unit = computeIntervalUnit(duration);
+
+                               // view is a single-unit duration, like "week" or "day"
+                               // incorporate options for this. lowest priority
+                               if (duration.as(unit) === 1) {
+                                       spec.singleUnit = unit;
+                                       overridesChain.unshift(viewOverrides[unit] || {});
+                               }
+                       }
+               }
+
+               spec.defaults = mergeOptions(defaultsChain);
+               spec.overrides = mergeOptions(overridesChain);
+
+               this.buildViewSpecOptions(spec);
+               this.buildViewSpecButtonText(spec, requestedViewType);
+
+               return spec;
+       },
+
+
+       // Builds and assigns a view spec's options object from its already-assigned defaults and overrides
+       buildViewSpecOptions: function(spec) {
+               spec.options = mergeOptions([ // lowest to highest priority
+                       Calendar.defaults, // global defaults
+                       spec.defaults, // view's defaults (from ViewSubclass.defaults)
+                       this.dirDefaults,
+                       this.localeDefaults, // locale and dir take precedence over view's defaults!
+                       this.overrides, // calendar's overrides (options given to constructor)
+                       spec.overrides, // view's overrides (view-specific options)
+                       this.dynamicOverrides // dynamically set via setter. highest precedence
+               ]);
+               populateInstanceComputableOptions(spec.options);
+       },
+
+
+       // Computes and assigns a view spec's buttonText-related options
+       buildViewSpecButtonText: function(spec, requestedViewType) {
+
+               // given an options object with a possible `buttonText` hash, lookup the buttonText for the
+               // requested view, falling back to a generic unit entry like "week" or "day"
+               function queryButtonText(options) {
+                       var buttonText = options.buttonText || {};
+                       return buttonText[requestedViewType] ||
+                               // view can decide to look up a certain key
+                               (spec.buttonTextKey ? buttonText[spec.buttonTextKey] : null) ||
+                               // a key like "month"
+                               (spec.singleUnit ? buttonText[spec.singleUnit] : null);
+               }
+
+               // highest to lowest priority
+               spec.buttonTextOverride =
+                       queryButtonText(this.dynamicOverrides) ||
+                       queryButtonText(this.overrides) || // constructor-specified buttonText lookup hash takes precedence
+                       spec.overrides.buttonText; // `buttonText` for view-specific options is a string
+
+               // highest to lowest priority. mirrors buildViewSpecOptions
+               spec.buttonTextDefault =
+                       queryButtonText(this.localeDefaults) ||
+                       queryButtonText(this.dirDefaults) ||
+                       spec.defaults.buttonText || // a single string. from ViewSubclass.defaults
+                       queryButtonText(Calendar.defaults) ||
+                       (spec.duration ? this.humanizeDuration(spec.duration) : null) || // like "3 days"
+                       requestedViewType; // fall back to given view name
+       },
+
+
+       // Given a view name for a custom view or a standard view, creates a ready-to-go View object
+       instantiateView: function(viewType) {
+               var spec = this.getViewSpec(viewType);
+
+               return new spec['class'](this, viewType, spec.options, spec.duration);
+       },
+
+
+       // Returns a boolean about whether the view is okay to instantiate at some point
+       isValidViewType: function(viewType) {
+               return Boolean(this.getViewSpec(viewType));
+       },
+
+
+       // Should be called when any type of async data fetching begins
+       pushLoading: function() {
+               if (!(this.loadingLevel++)) {
+                       this.publiclyTrigger('loading', null, true, this.view);
+               }
+       },
+
+
+       // Should be called when any type of async data fetching completes
+       popLoading: function() {
+               if (!(--this.loadingLevel)) {
+                       this.publiclyTrigger('loading', null, false, this.view);
+               }
+       },
+
+
+       // Given arguments to the select method in the API, returns a span (unzoned start/end and other info)
+       buildSelectSpan: function(zonedStartInput, zonedEndInput) {
+               var start = this.moment(zonedStartInput).stripZone();
+               var end;
+
+               if (zonedEndInput) {
+                       end = this.moment(zonedEndInput).stripZone();
+               }
+               else if (start.hasTime()) {
+                       end = start.clone().add(this.defaultTimedEventDuration);
+               }
+               else {
+                       end = start.clone().add(this.defaultAllDayEventDuration);
+               }
+
+               return { start: start, end: end };
+       }
+
+});
+
+
+Calendar.mixin(EmitterMixin);
+
+
+function Calendar_constructor(element, overrides) {
+       var t = this;
+
+       // declare the current calendar instance relies on GlobalEmitter. needed for garbage collection.
+       GlobalEmitter.needed();
+
+
+       // Exports
+       // -----------------------------------------------------------------------------------
+
+       t.render = render;
+       t.destroy = destroy;
+       t.rerenderEvents = rerenderEvents;
+       t.changeView = renderView; // `renderView` will switch to another view
+       t.select = select;
+       t.unselect = unselect;
+       t.prev = prev;
+       t.next = next;
+       t.prevYear = prevYear;
+       t.nextYear = nextYear;
+       t.today = today;
+       t.gotoDate = gotoDate;
+       t.incrementDate = incrementDate;
+       t.zoomTo = zoomTo;
+       t.getDate = getDate;
+       t.getCalendar = getCalendar;
+       t.getView = getView;
+       t.option = option; // getter/setter method
+       t.publiclyTrigger = publiclyTrigger;
+
+
+       // Options
+       // -----------------------------------------------------------------------------------
+
+       t.dynamicOverrides = {};
+       t.viewSpecCache = {};
+       t.optionHandlers = {}; // for Calendar.options.js
+       t.overrides = $.extend({}, overrides); // make a copy
+
+       t.populateOptionsHash(); // sets this.options
+
+
+
+       // Locale-data Internals
+       // -----------------------------------------------------------------------------------
+       // Apply overrides to the current locale's data
+
+       var localeData;
+
+       // Called immediately, and when any of the options change.
+       // Happens before any internal objects rebuild or rerender, because this is very core.
+       t.bindOptions([
+               'locale', 'monthNames', 'monthNamesShort', 'dayNames', 'dayNamesShort', 'firstDay', 'weekNumberCalculation'
+       ], function(locale, monthNames, monthNamesShort, dayNames, dayNamesShort, firstDay, weekNumberCalculation) {
+
+               // normalize
+               if (weekNumberCalculation === 'iso') {
+                       weekNumberCalculation = 'ISO'; // normalize
+               }
+
+               localeData = createObject( // make a cheap copy
+                       getMomentLocaleData(locale) // will fall back to en
+               );
+
+               if (monthNames) {
+                       localeData._months = monthNames;
+               }
+               if (monthNamesShort) {
+                       localeData._monthsShort = monthNamesShort;
+               }
+               if (dayNames) {
+                       localeData._weekdays = dayNames;
+               }
+               if (dayNamesShort) {
+                       localeData._weekdaysShort = dayNamesShort;
+               }
+
+               if (firstDay == null && weekNumberCalculation === 'ISO') {
+                       firstDay = 1;
+               }
+               if (firstDay != null) {
+                       var _week = createObject(localeData._week); // _week: { dow: # }
+                       _week.dow = firstDay;
+                       localeData._week = _week;
+               }
+
+               if ( // whitelist certain kinds of input
+                       weekNumberCalculation === 'ISO' ||
+                       weekNumberCalculation === 'local' ||
+                       typeof weekNumberCalculation === 'function'
+               ) {
+                       localeData._fullCalendar_weekCalc = weekNumberCalculation; // moment-ext will know what to do with it
+               }
+
+               // If the internal current date object already exists, move to new locale.
+               // We do NOT need to do this technique for event dates, because this happens when converting to "segments".
+               if (date) {
+                       localizeMoment(date); // sets to localeData
+               }
+       });
+
+
+       // Calendar-specific Date Utilities
+       // -----------------------------------------------------------------------------------
+
+
+       t.defaultAllDayEventDuration = moment.duration(t.options.defaultAllDayEventDuration);
+       t.defaultTimedEventDuration = moment.duration(t.options.defaultTimedEventDuration);
+
+
+       // Builds a moment using the settings of the current calendar: timezone and locale.
+       // Accepts anything the vanilla moment() constructor accepts.
+       t.moment = function() {
+               var mom;
+
+               if (t.options.timezone === 'local') {
+                       mom = FC.moment.apply(null, arguments);
+
+                       // Force the moment to be local, because FC.moment doesn't guarantee it.
+                       if (mom.hasTime()) { // don't give ambiguously-timed moments a local zone
+                               mom.local();
+                       }
+               }
+               else if (t.options.timezone === 'UTC') {
+                       mom = FC.moment.utc.apply(null, arguments); // process as UTC
+               }
+               else {
+                       mom = FC.moment.parseZone.apply(null, arguments); // let the input decide the zone
+               }
+
+               localizeMoment(mom);
+
+               return mom;
+       };
+
+
+       // Updates the given moment's locale settings to the current calendar locale settings.
+       function localizeMoment(mom) {
+               mom._locale = localeData;
+       }
+       t.localizeMoment = localizeMoment;
+
+
+       // Returns a boolean about whether or not the calendar knows how to calculate
+       // the timezone offset of arbitrary dates in the current timezone.
+       t.getIsAmbigTimezone = function() {
+               return t.options.timezone !== 'local' && t.options.timezone !== 'UTC';
+       };
+
+
+       // Returns a copy of the given date in the current timezone. Has no effect on dates without times.
+       t.applyTimezone = function(date) {
+               if (!date.hasTime()) {
+                       return date.clone();
+               }
+
+               var zonedDate = t.moment(date.toArray());
+               var timeAdjust = date.time() - zonedDate.time();
+               var adjustedZonedDate;
+
+               // Safari sometimes has problems with this coersion when near DST. Adjust if necessary. (bug #2396)
+               if (timeAdjust) { // is the time result different than expected?
+                       adjustedZonedDate = zonedDate.clone().add(timeAdjust); // add milliseconds
+                       if (date.time() - adjustedZonedDate.time() === 0) { // does it match perfectly now?
+                               zonedDate = adjustedZonedDate;
+                       }
+               }
+
+               return zonedDate;
+       };
+
+
+       // Returns a moment for the current date, as defined by the client's computer or from the `now` option.
+       // Will return an moment with an ambiguous timezone.
+       t.getNow = function() {
+               var now = t.options.now;
+               if (typeof now === 'function') {
+                       now = now();
+               }
+               return t.moment(now).stripZone();
+       };
+
+
+       // Get an event's normalized end date. If not present, calculate it from the defaults.
+       t.getEventEnd = function(event) {
+               if (event.end) {
+                       return event.end.clone();
+               }
+               else {
+                       return t.getDefaultEventEnd(event.allDay, event.start);
+               }
+       };
+
+
+       // Given an event's allDay status and start date, return what its fallback end date should be.
+       // TODO: rename to computeDefaultEventEnd
+       t.getDefaultEventEnd = function(allDay, zonedStart) {
+               var end = zonedStart.clone();
+
+               if (allDay) {
+                       end.stripTime().add(t.defaultAllDayEventDuration);
+               }
+               else {
+                       end.add(t.defaultTimedEventDuration);
+               }
+
+               if (t.getIsAmbigTimezone()) {
+                       end.stripZone(); // we don't know what the tzo should be
+               }
+
+               return end;
+       };
+
+
+       // Produces a human-readable string for the given duration.
+       // Side-effect: changes the locale of the given duration.
+       t.humanizeDuration = function(duration) {
+               return duration.locale(t.options.locale).humanize();
+       };
+
+
+
+       // Imports
+       // -----------------------------------------------------------------------------------
+
+
+       EventManager.call(t);
+
+
+
+       // Locals
+       // -----------------------------------------------------------------------------------
+
+
+       var _element = element[0];
+       var toolbarsManager;
+       var header;
+       var footer;
+       var content;
+       var tm; // for making theme classes
+       var currentView; // NOTE: keep this in sync with this.view
+       var viewsByType = {}; // holds all instantiated view instances, current or not
+       var suggestedViewHeight;
+       var windowResizeProxy; // wraps the windowResize function
+       var ignoreWindowResize = 0;
+       var date; // unzoned
+
+
+
+       // Main Rendering
+       // -----------------------------------------------------------------------------------
+
+
+       // compute the initial ambig-timezone date
+       if (t.options.defaultDate != null) {
+               date = t.moment(t.options.defaultDate).stripZone();
+       }
+       else {
+               date = t.getNow(); // getNow already returns unzoned
+       }
+
+
+       function render() {
+               if (!content) {
+                       initialRender();
+               }
+               else if (elementVisible()) {
+                       // mainly for the public API
+                       calcSize();
+                       renderView();
+               }
+       }
+
+
+       function initialRender() {
+               element.addClass('fc');
+
+               // event delegation for nav links
+               element.on('click.fc', 'a[data-goto]', function(ev) {
+                       var anchorEl = $(this);
+                       var gotoOptions = anchorEl.data('goto'); // will automatically parse JSON
+                       var date = t.moment(gotoOptions.date);
+                       var viewType = gotoOptions.type;
+
+                       // property like "navLinkDayClick". might be a string or a function
+                       var customAction = currentView.opt('navLink' + capitaliseFirstLetter(viewType) + 'Click');
+
+                       if (typeof customAction === 'function') {
+                               customAction(date, ev);
+                       }
+                       else {
+                               if (typeof customAction === 'string') {
+                                       viewType = customAction;
+                               }
+                               zoomTo(date, viewType);
+                       }
+               });
+
+               // called immediately, and upon option change
+               t.bindOption('theme', function(theme) {
+                       tm = theme ? 'ui' : 'fc'; // affects a larger scope
+                       element.toggleClass('ui-widget', theme);
+                       element.toggleClass('fc-unthemed', !theme);
+               });
+
+               // called immediately, and upon option change.
+               // HACK: locale often affects isRTL, so we explicitly listen to that too.
+               t.bindOptions([ 'isRTL', 'locale' ], function(isRTL) {
+                       element.toggleClass('fc-ltr', !isRTL);
+                       element.toggleClass('fc-rtl', isRTL);
+               });
+
+               content = $("<div class='fc-view-container'/>").prependTo(element);
+
+               var toolbars = buildToolbars();
+               toolbarsManager = new Iterator(toolbars);
+
+               header = t.header = toolbars[0];
+               footer = t.footer = toolbars[1];
+
+               renderHeader();
+               renderFooter();
+               renderView(t.options.defaultView);
+
+               if (t.options.handleWindowResize) {
+                       windowResizeProxy = debounce(windowResize, t.options.windowResizeDelay); // prevents rapid calls
+                       $(window).resize(windowResizeProxy);
+               }
+       }
+
+
+       function destroy() {
+
+               if (currentView) {
+                       currentView.removeElement();
+
+                       // NOTE: don't null-out currentView/t.view in case API methods are called after destroy.
+                       // It is still the "current" view, just not rendered.
+               }
+
+               toolbarsManager.proxyCall('removeElement');
+               content.remove();
+               element.removeClass('fc fc-ltr fc-rtl fc-unthemed ui-widget');
+
+               element.off('.fc'); // unbind nav link handlers
+
+               if (windowResizeProxy) {
+                       $(window).unbind('resize', windowResizeProxy);
+               }
+
+               GlobalEmitter.unneeded();
+       }
+
+
+       function elementVisible() {
+               return element.is(':visible');
+       }
+
+
+
+       // View Rendering
+       // -----------------------------------------------------------------------------------
+
+
+       // Renders a view because of a date change, view-type change, or for the first time.
+       // If not given a viewType, keep the current view but render different dates.
+       // Accepts an optional scroll state to restore to.
+       function renderView(viewType, forcedScroll) {
+               ignoreWindowResize++;
+
+               var needsClearView = currentView && viewType && currentView.type !== viewType;
+
+               // if viewType is changing, remove the old view's rendering
+               if (needsClearView) {
+                       freezeContentHeight(); // prevent a scroll jump when view element is removed
+                       clearView();
+               }
+
+               // if viewType changed, or the view was never created, create a fresh view
+               if (!currentView && viewType) {
+                       currentView = t.view =
+                               viewsByType[viewType] ||
+                               (viewsByType[viewType] = t.instantiateView(viewType));
+
+                       currentView.setElement(
+                               $("<div class='fc-view fc-" + viewType + "-view' />").appendTo(content)
+                       );
+                       toolbarsManager.proxyCall('activateButton', viewType);
+               }
+
+               if (currentView) {
+
+                       // in case the view should render a period of time that is completely hidden
+                       date = currentView.massageCurrentDate(date);
+
+                       // render or rerender the view
+                       if (
+                               !currentView.isDateSet ||
+                               !( // NOT within interval range signals an implicit date window change
+                                       date >= currentView.intervalStart &&
+                                       date < currentView.intervalEnd
+                               )
+                       ) {
+                               if (elementVisible()) {
+
+                                       if (forcedScroll) {
+                                               currentView.captureInitialScroll(forcedScroll);
+                                       }
+
+                                       currentView.setDate(date, forcedScroll);
+
+                                       if (forcedScroll) {
+                                               currentView.releaseScroll();
+                                       }
+
+                                       // need to do this after View::render, so dates are calculated
+                                       // NOTE: view updates title text proactively
+                                       updateToolbarsTodayButton();
+                               }
+                       }
+               }
+
+               if (needsClearView) {
+                       thawContentHeight();
+               }
+
+               ignoreWindowResize--;
+       }
+
+
+       // Unrenders the current view and reflects this change in the Header.
+       // Unregsiters the `currentView`, but does not remove from viewByType hash.
+       function clearView() {
+               toolbarsManager.proxyCall('deactivateButton', currentView.type);
+               currentView.removeElement();
+               currentView = t.view = null;
+       }
+
+
+       // Destroys the view, including the view object. Then, re-instantiates it and renders it.
+       // Maintains the same scroll state.
+       // TODO: maintain any other user-manipulated state.
+       function reinitView() {
+               ignoreWindowResize++;
+               freezeContentHeight();
+
+               var viewType = currentView.type;
+               var scrollState = currentView.queryScroll();
+               clearView();
+               calcSize();
+               renderView(viewType, scrollState);
+
+               thawContentHeight();
+               ignoreWindowResize--;
+       }
+
+
+
+       // Resizing
+       // -----------------------------------------------------------------------------------
+
+
+       t.getSuggestedViewHeight = function() {
+               if (suggestedViewHeight === undefined) {
+                       calcSize();
+               }
+               return suggestedViewHeight;
+       };
+
+
+       t.isHeightAuto = function() {
+               return t.options.contentHeight === 'auto' || t.options.height === 'auto';
+       };
+
+
+       function updateSize(shouldRecalc) {
+               if (elementVisible()) {
+
+                       if (shouldRecalc) {
+                               _calcSize();
+                       }
+
+                       ignoreWindowResize++;
+                       currentView.updateSize(true); // isResize=true. will poll getSuggestedViewHeight() and isHeightAuto()
+                       ignoreWindowResize--;
+
+                       return true; // signal success
+               }
+       }
+
+
+       function calcSize() {
+               if (elementVisible()) {
+                       _calcSize();
+               }
+       }
+
+
+       function _calcSize() { // assumes elementVisible
+               var contentHeightInput = t.options.contentHeight;
+               var heightInput = t.options.height;
+
+               if (typeof contentHeightInput === 'number') { // exists and not 'auto'
+                       suggestedViewHeight = contentHeightInput;
+               }
+               else if (typeof contentHeightInput === 'function') { // exists and is a function
+                       suggestedViewHeight = contentHeightInput();
+               }
+               else if (typeof heightInput === 'number') { // exists and not 'auto'
+                       suggestedViewHeight = heightInput - queryToolbarsHeight();
+               }
+               else if (typeof heightInput === 'function') { // exists and is a function
+                       suggestedViewHeight = heightInput() - queryToolbarsHeight();
+               }
+               else if (heightInput === 'parent') { // set to height of parent element
+                       suggestedViewHeight = element.parent().height() - queryToolbarsHeight();
+               }
+               else {
+                       suggestedViewHeight = Math.round(content.width() / Math.max(t.options.aspectRatio, .5));
+               }
+       }
+
+
+       function queryToolbarsHeight() {
+               return toolbarsManager.items.reduce(function(accumulator, toolbar) {
+                       var toolbarHeight = toolbar.el ? toolbar.el.outerHeight(true) : 0; // includes margin
+                       return accumulator + toolbarHeight;
+               }, 0);
+       }
+
+
+       function windowResize(ev) {
+               if (
+                       !ignoreWindowResize &&
+                       ev.target === window && // so we don't process jqui "resize" events that have bubbled up
+                       currentView.start // view has already been rendered
+               ) {
+                       if (updateSize(true)) {
+                               currentView.publiclyTrigger('windowResize', _element);
+                       }
+               }
+       }
+
+
+
+       /* Event Rendering
+       -----------------------------------------------------------------------------*/
+
+
+       function rerenderEvents() { // API method. destroys old events if previously rendered.
+               if (elementVisible()) {
+                       t.reportEventChange(); // will re-trasmit events to the view, causing a rerender
+               }
+       }
+
+
+
+       /* Toolbars
+       -----------------------------------------------------------------------------*/
+
+
+       function buildToolbars() {
+               return [
+                       new Toolbar(t, computeHeaderOptions()),
+                       new Toolbar(t, computeFooterOptions())
+               ];
+       }
+
+
+       function computeHeaderOptions() {
+               return {
+                       extraClasses: 'fc-header-toolbar',
+                       layout: t.options.header
+               };
+       }
+
+
+       function computeFooterOptions() {
+               return {
+                       extraClasses: 'fc-footer-toolbar',
+                       layout: t.options.footer
+               };
+       }
+
+
+       // can be called repeatedly and Header will rerender
+       function renderHeader() {
+               header.setToolbarOptions(computeHeaderOptions());
+               header.render();
+               if (header.el) {
+                       element.prepend(header.el);
+               }
+       }
+
+
+       // can be called repeatedly and Footer will rerender
+       function renderFooter() {
+               footer.setToolbarOptions(computeFooterOptions());
+               footer.render();
+               if (footer.el) {
+                       element.append(footer.el);
+               }
+       }
+
+
+       t.setToolbarsTitle = function(title) {
+               toolbarsManager.proxyCall('updateTitle', title);
+       };
+
+
+       function updateToolbarsTodayButton() {
+               var now = t.getNow();
+               if (now >= currentView.intervalStart && now < currentView.intervalEnd) {
+                       toolbarsManager.proxyCall('disableButton', 'today');
+               }
+               else {
+                       toolbarsManager.proxyCall('enableButton', 'today');
+               }
+       }
+
+
+
+       /* Selection
+       -----------------------------------------------------------------------------*/
+
+
+       // this public method receives start/end dates in any format, with any timezone
+       function select(zonedStartInput, zonedEndInput) {
+               currentView.select(
+                       t.buildSelectSpan.apply(t, arguments)
+               );
+       }
+
+
+       function unselect() { // safe to be called before renderView
+               if (currentView) {
+                       currentView.unselect();
+               }
+       }
+
+
+
+       /* Date
+       -----------------------------------------------------------------------------*/
+
+
+       function prev() {
+               date = currentView.computePrevDate(date);
+               renderView();
+       }
+
+
+       function next() {
+               date = currentView.computeNextDate(date);
+               renderView();
+       }
+
+
+       function prevYear() {
+               date.add(-1, 'years');
+               renderView();
+       }
+
+
+       function nextYear() {
+               date.add(1, 'years');
+               renderView();
+       }
+
+
+       function today() {
+               date = t.getNow();
+               renderView();
+       }
+
+
+       function gotoDate(zonedDateInput) {
+               date = t.moment(zonedDateInput).stripZone();
+               renderView();
+       }
+
+
+       function incrementDate(delta) {
+               date.add(moment.duration(delta));
+               renderView();
+       }
+
+
+       // Forces navigation to a view for the given date.
+       // `viewType` can be a specific view name or a generic one like "week" or "day".
+       function zoomTo(newDate, viewType) {
+               var spec;
+
+               viewType = viewType || 'day'; // day is default zoom
+               spec = t.getViewSpec(viewType) || t.getUnitViewSpec(viewType);
+
+               date = newDate.clone();
+               renderView(spec ? spec.type : null);
+       }
+
+
+       // for external API
+       function getDate() {
+               return t.applyTimezone(date); // infuse the calendar's timezone
+       }
+
+
+
+       /* Height "Freezing"
+       -----------------------------------------------------------------------------*/
+
+
+       t.freezeContentHeight = freezeContentHeight;
+       t.thawContentHeight = thawContentHeight;
+
+       var freezeContentHeightDepth = 0;
+
+
+       function freezeContentHeight() {
+               if (!(freezeContentHeightDepth++)) {
+                       content.css({
+                               width: '100%',
+                               height: content.height(),
+                               overflow: 'hidden'
+                       });
+               }
+       }
+
+
+       function thawContentHeight() {
+               if (!(--freezeContentHeightDepth)) {
+                       content.css({
+                               width: '',
+                               height: '',
+                               overflow: ''
+                       });
+               }
+       }
+
+
+
+       /* Misc
+       -----------------------------------------------------------------------------*/
+
+
+       function getCalendar() {
+               return t;
+       }
+
+
+       function getView() {
+               return currentView;
+       }
+
+
+       function option(name, value) {
+               var newOptionHash;
+
+               if (typeof name === 'string') {
+                       if (value === undefined) { // getter
+                               return t.options[name];
+                       }
+                       else { // setter for individual option
+                               newOptionHash = {};
+                               newOptionHash[name] = value;
+                               setOptions(newOptionHash);
+                       }
+               }
+               else if (typeof name === 'object') { // compound setter with object input
+                       setOptions(name);
+               }
+       }
+
+
+       function setOptions(newOptionHash) {
+               var optionCnt = 0;
+               var optionName;
+
+               for (optionName in newOptionHash) {
+                       t.dynamicOverrides[optionName] = newOptionHash[optionName];
+               }
+
+               t.viewSpecCache = {}; // the dynamic override invalidates the options in this cache, so just clear it
+               t.populateOptionsHash(); // this.options needs to be recomputed after the dynamic override
+
+               // trigger handlers after this.options has been updated
+               for (optionName in newOptionHash) {
+                       t.triggerOptionHandlers(optionName); // recall bindOption/bindOptions
+                       optionCnt++;
+               }
+
+               // special-case handling of single option change.
+               // if only one option change, `optionName` will be its name.
+               if (optionCnt === 1) {
+                       if (optionName === 'height' || optionName === 'contentHeight' || optionName === 'aspectRatio') {
+                               updateSize(true); // true = allow recalculation of height
+                               return;
+                       }
+                       else if (optionName === 'defaultDate') {
+                               return; // can't change date this way. use gotoDate instead
+                       }
+                       else if (optionName === 'businessHours') {
+                               if (currentView) {
+                                       currentView.unrenderBusinessHours();
+                                       currentView.renderBusinessHours();
+                               }
+                               return;
+                       }
+                       else if (optionName === 'timezone') {
+                               t.rezoneArrayEventSources();
+                               t.refetchEvents();
+                               return;
+                       }
+               }
+
+               // catch-all. rerender the header and footer and rebuild/rerender the current view
+               renderHeader();
+               renderFooter();
+               viewsByType = {}; // even non-current views will be affected by this option change. do before rerender
+               reinitView();
+       }
+
+
+       function publiclyTrigger(name, thisObj) {
+               var args = Array.prototype.slice.call(arguments, 2);
+
+               thisObj = thisObj || _element;
+               this.triggerWith(name, thisObj, args); // Emitter's method
+
+               if (t.options[name]) {
+                       return t.options[name].apply(thisObj, args);
+               }
+       }
+
+       t.initialize();
+}
+
+;;
+/*
+Options binding/triggering system.
+*/
+Calendar.mixin({
+
+       // A map of option names to arrays of handler objects. Initialized to {} in Calendar.
+       // Format for a handler object:
+       // {
+       //   func // callback function to be called upon change
+       //   names // option names whose values should be given to func
+       // }
+       optionHandlers: null, 
+
+       // Calls handlerFunc immediately, and when the given option has changed.
+       // handlerFunc will be given the option value.
+       bindOption: function(optionName, handlerFunc) {
+               this.bindOptions([ optionName ], handlerFunc);
+       },
+
+       // Calls handlerFunc immediately, and when any of the given options change.
+       // handlerFunc will be given each option value as ordered function arguments.
+       bindOptions: function(optionNames, handlerFunc) {
+               var handlerObj = { func: handlerFunc, names: optionNames };
+               var i;
+
+               for (i = 0; i < optionNames.length; i++) {
+                       this.registerOptionHandlerObj(optionNames[i], handlerObj);
+               }
+
+               this.triggerOptionHandlerObj(handlerObj);
+       },
+
+       // Puts the given handler object into the internal hash
+       registerOptionHandlerObj: function(optionName, handlerObj) {
+               (this.optionHandlers[optionName] || (this.optionHandlers[optionName] = []))
+                       .push(handlerObj);
+       },
+
+       // Reports that the given option has changed, and calls all appropriate handlers.
+       triggerOptionHandlers: function(optionName) {
+               var handlerObjs = this.optionHandlers[optionName] || [];
+               var i;
+
+               for (i = 0; i < handlerObjs.length; i++) {
+                       this.triggerOptionHandlerObj(handlerObjs[i]);
+               }
+       },
+
+       // Calls the callback for a specific handler object, passing in the appropriate arguments.
+       triggerOptionHandlerObj: function(handlerObj) {
+               var optionNames = handlerObj.names;
+               var optionValues = [];
+               var i;
+
+               for (i = 0; i < optionNames.length; i++) {
+                       optionValues.push(this.options[optionNames[i]]);
+               }
+
+               handlerObj.func.apply(this, optionValues); // maintain the Calendar's `this` context
+       }
+
+});
+
+;;
+
+Calendar.defaults = {
+
+       titleRangeSeparator: ' \u2013 ', // en dash
+       monthYearFormat: 'MMMM YYYY', // required for en. other locales rely on datepicker computable option
+
+       defaultTimedEventDuration: '02:00:00',
+       defaultAllDayEventDuration: { days: 1 },
+       forceEventDuration: false,
+       nextDayThreshold: '09:00:00', // 9am
+
+       // display
+       defaultView: 'month',
+       aspectRatio: 1.35,
+       header: {
+               left: 'title',
+               center: '',
+               right: 'today prev,next'
+       },
+       weekends: true,
+       weekNumbers: false,
+
+       weekNumberTitle: 'W',
+       weekNumberCalculation: 'local',
+       
+       //editable: false,
+
+       //nowIndicator: false,
+
+       scrollTime: '06:00:00',
+       
+       // event ajax
+       lazyFetching: true,
+       startParam: 'start',
+       endParam: 'end',
+       timezoneParam: 'timezone',
+
+       timezone: false,
+
+       //allDayDefault: undefined,
+
+       // locale
+       isRTL: false,
+       buttonText: {
+               prev: "prev",
+               next: "next",
+               prevYear: "prev year",
+               nextYear: "next year",
+               year: 'year', // TODO: locale files need to specify this
+               today: 'today',
+               month: 'month',
+               week: 'week',
+               day: 'day'
+       },
+
+       buttonIcons: {
+               prev: 'left-single-arrow',
+               next: 'right-single-arrow',
+               prevYear: 'left-double-arrow',
+               nextYear: 'right-double-arrow'
+       },
+
+       allDayText: 'all-day',
+       
+       // jquery-ui theming
+       theme: false,
+       themeButtonIcons: {
+               prev: 'circle-triangle-w',
+               next: 'circle-triangle-e',
+               prevYear: 'seek-prev',
+               nextYear: 'seek-next'
+       },
+
+       //eventResizableFromStart: false,
+       dragOpacity: .75,
+       dragRevertDuration: 500,
+       dragScroll: true,
+       
+       //selectable: false,
+       unselectAuto: true,
+       //selectMinDistance: 0,
+       
+       dropAccept: '*',
+
+       eventOrder: 'title',
+       //eventRenderWait: null,
+
+       eventLimit: false,
+       eventLimitText: 'more',
+       eventLimitClick: 'popover',
+       dayPopoverFormat: 'LL',
+       
+       handleWindowResize: true,
+       windowResizeDelay: 100, // milliseconds before an updateSize happens
+
+       longPressDelay: 1000
+       
+};
+
+
+Calendar.englishDefaults = { // used by locale.js
+       dayPopoverFormat: 'dddd, MMMM D'
+};
+
+
+Calendar.rtlDefaults = { // right-to-left defaults
+       header: { // TODO: smarter solution (first/center/last ?)
+               left: 'next,prev today',
+               center: '',
+               right: 'title'
+       },
+       buttonIcons: {
+               prev: 'right-single-arrow',
+               next: 'left-single-arrow',
+               prevYear: 'right-double-arrow',
+               nextYear: 'left-double-arrow'
+       },
+       themeButtonIcons: {
+               prev: 'circle-triangle-e',
+               next: 'circle-triangle-w',
+               nextYear: 'seek-prev',
+               prevYear: 'seek-next'
+       }
+};
+
+;;
+
+var localeOptionHash = FC.locales = {}; // initialize and expose
+
+
+// TODO: document the structure and ordering of a FullCalendar locale file
+
+
+// Initialize jQuery UI datepicker translations while using some of the translations
+// Will set this as the default locales for datepicker.
+FC.datepickerLocale = function(localeCode, dpLocaleCode, dpOptions) {
+
+       // get the FullCalendar internal option hash for this locale. create if necessary
+       var fcOptions = localeOptionHash[localeCode] || (localeOptionHash[localeCode] = {});
+
+       // transfer some simple options from datepicker to fc
+       fcOptions.isRTL = dpOptions.isRTL;
+       fcOptions.weekNumberTitle = dpOptions.weekHeader;
+
+       // compute some more complex options from datepicker
+       $.each(dpComputableOptions, function(name, func) {
+               fcOptions[name] = func(dpOptions);
+       });
+
+       // is jQuery UI Datepicker is on the page?
+       if ($.datepicker) {
+
+               // Register the locale data.
+               // FullCalendar and MomentJS use locale codes like "pt-br" but Datepicker
+               // does it like "pt-BR" or if it doesn't have the locale, maybe just "pt".
+               // Make an alias so the locale can be referenced either way.
+               $.datepicker.regional[dpLocaleCode] =
+                       $.datepicker.regional[localeCode] = // alias
+                               dpOptions;
+
+               // Alias 'en' to the default locale data. Do this every time.
+               $.datepicker.regional.en = $.datepicker.regional[''];
+
+               // Set as Datepicker's global defaults.
+               $.datepicker.setDefaults(dpOptions);
+       }
+};
+
+
+// Sets FullCalendar-specific translations. Will set the locales as the global default.
+FC.locale = function(localeCode, newFcOptions) {
+       var fcOptions;
+       var momOptions;
+
+       // get the FullCalendar internal option hash for this locale. create if necessary
+       fcOptions = localeOptionHash[localeCode] || (localeOptionHash[localeCode] = {});
+
+       // provided new options for this locales? merge them in
+       if (newFcOptions) {
+               fcOptions = localeOptionHash[localeCode] = mergeOptions([ fcOptions, newFcOptions ]);
+       }
+
+       // compute locale options that weren't defined.
+       // always do this. newFcOptions can be undefined when initializing from i18n file,
+       // so no way to tell if this is an initialization or a default-setting.
+       momOptions = getMomentLocaleData(localeCode); // will fall back to en
+       $.each(momComputableOptions, function(name, func) {
+               if (fcOptions[name] == null) {
+                       fcOptions[name] = func(momOptions, fcOptions);
+               }
+       });
+
+       // set it as the default locale for FullCalendar
+       Calendar.defaults.locale = localeCode;
+};
+
+
+// NOTE: can't guarantee any of these computations will run because not every locale has datepicker
+// configs, so make sure there are English fallbacks for these in the defaults file.
+var dpComputableOptions = {
+
+       buttonText: function(dpOptions) {
+               return {
+                       // the translations sometimes wrongly contain HTML entities
+                       prev: stripHtmlEntities(dpOptions.prevText),
+                       next: stripHtmlEntities(dpOptions.nextText),
+                       today: stripHtmlEntities(dpOptions.currentText)
+               };
+       },
+
+       // Produces format strings like "MMMM YYYY" -> "September 2014"
+       monthYearFormat: function(dpOptions) {
+               return dpOptions.showMonthAfterYear ?
+                       'YYYY[' + dpOptions.yearSuffix + '] MMMM' :
+                       'MMMM YYYY[' + dpOptions.yearSuffix + ']';
+       }
+
+};
+
+var momComputableOptions = {
+
+       // Produces format strings like "ddd M/D" -> "Fri 9/15"
+       dayOfMonthFormat: function(momOptions, fcOptions) {
+               var format = momOptions.longDateFormat('l'); // for the format like "M/D/YYYY"
+
+               // strip the year off the edge, as well as other misc non-whitespace chars
+               format = format.replace(/^Y+[^\w\s]*|[^\w\s]*Y+$/g, '');
+
+               if (fcOptions.isRTL) {
+                       format += ' ddd'; // for RTL, add day-of-week to end
+               }
+               else {
+                       format = 'ddd ' + format; // for LTR, add day-of-week to beginning
+               }
+               return format;
+       },
+
+       // Produces format strings like "h:mma" -> "6:00pm"
+       mediumTimeFormat: function(momOptions) { // can't be called `timeFormat` because collides with option
+               return momOptions.longDateFormat('LT')
+                       .replace(/\s*a$/i, 'a'); // convert AM/PM/am/pm to lowercase. remove any spaces beforehand
+       },
+
+       // Produces format strings like "h(:mm)a" -> "6pm" / "6:30pm"
+       smallTimeFormat: function(momOptions) {
+               return momOptions.longDateFormat('LT')
+                       .replace(':mm', '(:mm)')
+                       .replace(/(\Wmm)$/, '($1)') // like above, but for foreign locales
+                       .replace(/\s*a$/i, 'a'); // convert AM/PM/am/pm to lowercase. remove any spaces beforehand
+       },
+
+       // Produces format strings like "h(:mm)t" -> "6p" / "6:30p"
+       extraSmallTimeFormat: function(momOptions) {
+               return momOptions.longDateFormat('LT')
+                       .replace(':mm', '(:mm)')
+                       .replace(/(\Wmm)$/, '($1)') // like above, but for foreign locales
+                       .replace(/\s*a$/i, 't'); // convert to AM/PM/am/pm to lowercase one-letter. remove any spaces beforehand
+       },
+
+       // Produces format strings like "ha" / "H" -> "6pm" / "18"
+       hourFormat: function(momOptions) {
+               return momOptions.longDateFormat('LT')
+                       .replace(':mm', '')
+                       .replace(/(\Wmm)$/, '') // like above, but for foreign locales
+                       .replace(/\s*a$/i, 'a'); // convert AM/PM/am/pm to lowercase. remove any spaces beforehand
+       },
+
+       // Produces format strings like "h:mm" -> "6:30" (with no AM/PM)
+       noMeridiemTimeFormat: function(momOptions) {
+               return momOptions.longDateFormat('LT')
+                       .replace(/\s*a$/i, ''); // remove trailing AM/PM
+       }
+
+};
+
+
+// options that should be computed off live calendar options (considers override options)
+// TODO: best place for this? related to locale?
+// TODO: flipping text based on isRTL is a bad idea because the CSS `direction` might want to handle it
+var instanceComputableOptions = {
+
+       // Produces format strings for results like "Mo 16"
+       smallDayDateFormat: function(options) {
+               return options.isRTL ?
+                       'D dd' :
+                       'dd D';
+       },
+
+       // Produces format strings for results like "Wk 5"
+       weekFormat: function(options) {
+               return options.isRTL ?
+                       'w[ ' + options.weekNumberTitle + ']' :
+                       '[' + options.weekNumberTitle + ' ]w';
+       },
+
+       // Produces format strings for results like "Wk5"
+       smallWeekFormat: function(options) {
+               return options.isRTL ?
+                       'w[' + options.weekNumberTitle + ']' :
+                       '[' + options.weekNumberTitle + ']w';
+       }
+
+};
+
+function populateInstanceComputableOptions(options) {
+       $.each(instanceComputableOptions, function(name, func) {
+               if (options[name] == null) {
+                       options[name] = func(options);
+               }
+       });
+}
+
+
+// Returns moment's internal locale data. If doesn't exist, returns English.
+function getMomentLocaleData(localeCode) {
+       return moment.localeData(localeCode) || moment.localeData('en');
+}
+
+
+// Initialize English by forcing computation of moment-derived options.
+// Also, sets it as the default.
+FC.locale('en', Calendar.englishDefaults);
+
+;;
+
+FC.sourceNormalizers = [];
+FC.sourceFetchers = [];
+
+var ajaxDefaults = {
+       dataType: 'json',
+       cache: false
+};
+
+var eventGUID = 1;
+
+
+function EventManager() { // assumed to be a calendar
+       var t = this;
+
+
+       // exports
+       t.requestEvents = requestEvents;
+       t.reportEventChange = reportEventChange;
+       t.isFetchNeeded = isFetchNeeded;
+       t.fetchEvents = fetchEvents;
+       t.fetchEventSources = fetchEventSources;
+       t.refetchEvents = refetchEvents;
+       t.refetchEventSources = refetchEventSources;
+       t.getEventSources = getEventSources;
+       t.getEventSourceById = getEventSourceById;
+       t.addEventSource = addEventSource;
+       t.removeEventSource = removeEventSource;
+       t.removeEventSources = removeEventSources;
+       t.updateEvent = updateEvent;
+       t.updateEvents = updateEvents;
+       t.renderEvent = renderEvent;
+       t.renderEvents = renderEvents;
+       t.removeEvents = removeEvents;
+       t.clientEvents = clientEvents;
+       t.mutateEvent = mutateEvent;
+       t.normalizeEventDates = normalizeEventDates;
+       t.normalizeEventTimes = normalizeEventTimes;
+
+
+       // locals
+       var stickySource = { events: [] };
+       var sources = [ stickySource ];
+       var rangeStart, rangeEnd;
+       var pendingSourceCnt = 0; // outstanding fetch requests, max one per source
+       var cache = []; // holds events that have already been expanded
+       var prunedCache; // like cache, but only events that intersect with rangeStart/rangeEnd
+
+
+       $.each(
+               (t.options.events ? [ t.options.events ] : []).concat(t.options.eventSources || []),
+               function(i, sourceInput) {
+                       var source = buildEventSource(sourceInput);
+                       if (source) {
+                               sources.push(source);
+                       }
+               }
+       );
+
+
+
+       function requestEvents(start, end) {
+               if (!t.options.lazyFetching || isFetchNeeded(start, end)) {
+                       return fetchEvents(start, end);
+               }
+               else {
+                       return Promise.resolve(prunedCache);
+               }
+       }
+
+
+       function reportEventChange() {
+               prunedCache = filterEventsWithinRange(cache);
+               t.trigger('eventsReset', prunedCache);
+       }
+
+
+       function filterEventsWithinRange(events) {
+               var filteredEvents = [];
+               var i, event;
+
+               for (i = 0; i < events.length; i++) {
+                       event = events[i];
+
+                       if (
+                               event.start.clone().stripZone() < rangeEnd &&
+                               t.getEventEnd(event).stripZone() > rangeStart
+                       ) {
+                               filteredEvents.push(event);
+                       }
+               }
+
+               return filteredEvents;
+       }
+
+
+       t.getEventCache = function() {
+               return cache;
+       };
+
+
+       t.getPrunedEventCache = function() {
+               return prunedCache;
+       };
+
+
+
+       /* Fetching
+       -----------------------------------------------------------------------------*/
+
+
+       // start and end are assumed to be unzoned
+       function isFetchNeeded(start, end) {
+               return !rangeStart || // nothing has been fetched yet?
+                       start < rangeStart || end > rangeEnd; // is part of the new range outside of the old range?
+       }
+
+
+       function fetchEvents(start, end) {
+               rangeStart = start;
+               rangeEnd = end;
+               return refetchEvents();
+       }
+
+
+       // poorly named. fetches all sources with current `rangeStart` and `rangeEnd`.
+       function refetchEvents() {
+               return fetchEventSources(sources, 'reset');
+       }
+
+
+       // poorly named. fetches a subset of event sources.
+       function refetchEventSources(matchInputs) {
+               return fetchEventSources(getEventSourcesByMatchArray(matchInputs));
+       }
+
+
+       // expects an array of event source objects (the originals, not copies)
+       // `specialFetchType` is an optimization parameter that affects purging of the event cache.
+       function fetchEventSources(specificSources, specialFetchType) {
+               var i, source;
+
+               if (specialFetchType === 'reset') {
+                       cache = [];
+               }
+               else if (specialFetchType !== 'add') {
+                       cache = excludeEventsBySources(cache, specificSources);
+               }
+
+               for (i = 0; i < specificSources.length; i++) {
+                       source = specificSources[i];
+
+                       // already-pending sources have already been accounted for in pendingSourceCnt
+                       if (source._status !== 'pending') {
+                               pendingSourceCnt++;
+                       }
+
+                       source._fetchId = (source._fetchId || 0) + 1;
+                       source._status = 'pending';
+               }
+
+               for (i = 0; i < specificSources.length; i++) {
+                       source = specificSources[i];
+                       tryFetchEventSource(source, source._fetchId);
+               }
+
+               if (pendingSourceCnt) {
+                       return new Promise(function(resolve) {
+                               t.one('eventsReceived', resolve); // will send prunedCache
+                       });
+               }
+               else { // executed all synchronously, or no sources at all
+                       return Promise.resolve(prunedCache);
+               }
+       }
+
+
+       // fetches an event source and processes its result ONLY if it is still the current fetch.
+       // caller is responsible for incrementing pendingSourceCnt first.
+       function tryFetchEventSource(source, fetchId) {
+               _fetchEventSource(source, function(eventInputs) {
+                       var isArraySource = $.isArray(source.events);
+                       var i, eventInput;
+                       var abstractEvent;
+
+                       if (
+                               // is this the source's most recent fetch?
+                               // if not, rely on an upcoming fetch of this source to decrement pendingSourceCnt
+                               fetchId === source._fetchId &&
+                               // event source no longer valid?
+                               source._status !== 'rejected'
+                       ) {
+                               source._status = 'resolved';
+
+                               if (eventInputs) {
+                                       for (i = 0; i < eventInputs.length; i++) {
+                                               eventInput = eventInputs[i];
+
+                                               if (isArraySource) { // array sources have already been convert to Event Objects
+                                                       abstractEvent = eventInput;
+                                               }
+                                               else {
+                                                       abstractEvent = buildEventFromInput(eventInput, source);
+                                               }
+
+                                               if (abstractEvent) { // not false (an invalid event)
+                                                       cache.push.apply( // append
+                                                               cache,
+                                                               expandEvent(abstractEvent) // add individual expanded events to the cache
+                                                       );
+                                               }
+                                       }
+                               }
+
+                               decrementPendingSourceCnt();
+                       }
+               });
+       }
+
+
+       function rejectEventSource(source) {
+               var wasPending = source._status === 'pending';
+
+               source._status = 'rejected';
+
+               if (wasPending) {
+                       decrementPendingSourceCnt();
+               }
+       }
+
+
+       function decrementPendingSourceCnt() {
+               pendingSourceCnt--;
+               if (!pendingSourceCnt) {
+                       reportEventChange(cache); // updates prunedCache
+                       t.trigger('eventsReceived', prunedCache);
+               }
+       }
+
+
+       function _fetchEventSource(source, callback) {
+               var i;
+               var fetchers = FC.sourceFetchers;
+               var res;
+
+               for (i=0; i<fetchers.length; i++) {
+                       res = fetchers[i].call(
+                               t, // this, the Calendar object
+                               source,
+                               rangeStart.clone(),
+                               rangeEnd.clone(),
+                               t.options.timezone,
+                               callback
+                       );
+
+                       if (res === true) {
+                               // the fetcher is in charge. made its own async request
+                               return;
+                       }
+                       else if (typeof res == 'object') {
+                               // the fetcher returned a new source. process it
+                               _fetchEventSource(res, callback);
+                               return;
+                       }
+               }
+
+               var events = source.events;
+               if (events) {
+                       if ($.isFunction(events)) {
+                               t.pushLoading();
+                               events.call(
+                                       t, // this, the Calendar object
+                                       rangeStart.clone(),
+                                       rangeEnd.clone(),
+                                       t.options.timezone,
+                                       function(events) {
+                                               callback(events);
+                                               t.popLoading();
+                                       }
+                               );
+                       }
+                       else if ($.isArray(events)) {
+                               callback(events);
+                       }
+                       else {
+                               callback();
+                       }
+               }else{
+                       var url = source.url;
+                       if (url) {
+                               var success = source.success;
+                               var error = source.error;
+                               var complete = source.complete;
+
+                               // retrieve any outbound GET/POST $.ajax data from the options
+                               var customData;
+                               if ($.isFunction(source.data)) {
+                                       // supplied as a function that returns a key/value object
+                                       customData = source.data();
+                               }
+                               else {
+                                       // supplied as a straight key/value object
+                                       customData = source.data;
+                               }
+
+                               // use a copy of the custom data so we can modify the parameters
+                               // and not affect the passed-in object.
+                               var data = $.extend({}, customData || {});
+
+                               var startParam = firstDefined(source.startParam, t.options.startParam);
+                               var endParam = firstDefined(source.endParam, t.options.endParam);
+                               var timezoneParam = firstDefined(source.timezoneParam, t.options.timezoneParam);
+
+                               if (startParam) {
+                                       data[startParam] = rangeStart.format();
+                               }
+                               if (endParam) {
+                                       data[endParam] = rangeEnd.format();
+                               }
+                               if (t.options.timezone && t.options.timezone != 'local') {
+                                       data[timezoneParam] = t.options.timezone;
+                               }
+
+                               t.pushLoading();
+                               $.ajax($.extend({}, ajaxDefaults, source, {
+                                       data: data,
+                                       success: function(events) {
+                                               events = events || [];
+                                               var res = applyAll(success, this, arguments);
+                                               if ($.isArray(res)) {
+                                                       events = res;
+                                               }
+                                               callback(events);
+                                       },
+                                       error: function() {
+                                               applyAll(error, this, arguments);
+                                               callback();
+                                       },
+                                       complete: function() {
+                                               applyAll(complete, this, arguments);
+                                               t.popLoading();
+                                       }
+                               }));
+                       }else{
+                               callback();
+                       }
+               }
+       }
+
+
+
+       /* Sources
+       -----------------------------------------------------------------------------*/
+
+
+       function addEventSource(sourceInput) {
+               var source = buildEventSource(sourceInput);
+               if (source) {
+                       sources.push(source);
+                       fetchEventSources([ source ], 'add'); // will eventually call reportEventChange
+               }
+       }
+
+
+       function buildEventSource(sourceInput) { // will return undefined if invalid source
+               var normalizers = FC.sourceNormalizers;
+               var source;
+               var i;
+
+               if ($.isFunction(sourceInput) || $.isArray(sourceInput)) {
+                       source = { events: sourceInput };
+               }
+               else if (typeof sourceInput === 'string') {
+                       source = { url: sourceInput };
+               }
+               else if (typeof sourceInput === 'object') {
+                       source = $.extend({}, sourceInput); // shallow copy
+               }
+
+               if (source) {
+
+                       // TODO: repeat code, same code for event classNames
+                       if (source.className) {
+                               if (typeof source.className === 'string') {
+                                       source.className = source.className.split(/\s+/);
+                               }
+                               // otherwise, assumed to be an array
+                       }
+                       else {
+                               source.className = [];
+                       }
+
+                       // for array sources, we convert to standard Event Objects up front
+                       if ($.isArray(source.events)) {
+                               source.origArray = source.events; // for removeEventSource
+                               source.events = $.map(source.events, function(eventInput) {
+                                       return buildEventFromInput(eventInput, source);
+                               });
+                       }
+
+                       for (i=0; i<normalizers.length; i++) {
+                               normalizers[i].call(t, source);
+                       }
+
+                       return source;
+               }
+       }
+
+
+       function removeEventSource(matchInput) {
+               removeSpecificEventSources(
+                       getEventSourcesByMatch(matchInput)
+               );
+       }
+
+
+       // if called with no arguments, removes all.
+       function removeEventSources(matchInputs) {
+               if (matchInputs == null) {
+                       removeSpecificEventSources(sources, true); // isAll=true
+               }
+               else {
+                       removeSpecificEventSources(
+                               getEventSourcesByMatchArray(matchInputs)
+                       );
+               }
+       }
+
+
+       function removeSpecificEventSources(targetSources, isAll) {
+               var i;
+
+               // cancel pending requests
+               for (i = 0; i < targetSources.length; i++) {
+                       rejectEventSource(targetSources[i]);
+               }
+
+               if (isAll) { // an optimization
+                       sources = [];
+                       cache = [];
+               }
+               else {
+                       // remove from persisted source list
+                       sources = $.grep(sources, function(source) {
+                               for (i = 0; i < targetSources.length; i++) {
+                                       if (source === targetSources[i]) {
+                                               return false; // exclude
+                                       }
+                               }
+                               return true; // include
+                       });
+
+                       cache = excludeEventsBySources(cache, targetSources);
+               }
+
+               reportEventChange();
+       }
+
+
+       function getEventSources() {
+               return sources.slice(1); // returns a shallow copy of sources with stickySource removed
+       }
+
+
+       function getEventSourceById(id) {
+               return $.grep(sources, function(source) {
+                       return source.id && source.id === id;
+               })[0];
+       }
+
+
+       // like getEventSourcesByMatch, but accepts multple match criteria (like multiple IDs)
+       function getEventSourcesByMatchArray(matchInputs) {
+
+               // coerce into an array
+               if (!matchInputs) {
+                       matchInputs = [];
+               }
+               else if (!$.isArray(matchInputs)) {
+                       matchInputs = [ matchInputs ];
+               }
+
+               var matchingSources = [];
+               var i;
+
+               // resolve raw inputs to real event source objects
+               for (i = 0; i < matchInputs.length; i++) {
+                       matchingSources.push.apply( // append
+                               matchingSources,
+                               getEventSourcesByMatch(matchInputs[i])
+                       );
+               }
+
+               return matchingSources;
+       }
+
+
+       // matchInput can either by a real event source object, an ID, or the function/URL for the source.
+       // returns an array of matching source objects.
+       function getEventSourcesByMatch(matchInput) {
+               var i, source;
+
+               // given an proper event source object
+               for (i = 0; i < sources.length; i++) {
+                       source = sources[i];
+                       if (source === matchInput) {
+                               return [ source ];
+                       }
+               }
+
+               // an ID match
+               source = getEventSourceById(matchInput);
+               if (source) {
+                       return [ source ];
+               }
+
+               return $.grep(sources, function(source) {
+                       return isSourcesEquivalent(matchInput, source);
+               });
+       }
+
+
+       function isSourcesEquivalent(source1, source2) {
+               return source1 && source2 && getSourcePrimitive(source1) == getSourcePrimitive(source2);
+       }
+
+
+       function getSourcePrimitive(source) {
+               return (
+                       (typeof source === 'object') ? // a normalized event source?
+                               (source.origArray || source.googleCalendarId || source.url || source.events) : // get the primitive
+                               null
+               ) ||
+               source; // the given argument *is* the primitive
+       }
+
+
+       // util
+       // returns a filtered array without events that are part of any of the given sources
+       function excludeEventsBySources(specificEvents, specificSources) {
+               return $.grep(specificEvents, function(event) {
+                       for (var i = 0; i < specificSources.length; i++) {
+                               if (event.source === specificSources[i]) {
+                                       return false; // exclude
+                               }
+                       }
+                       return true; // keep
+               });
+       }
+
+
+
+       /* Manipulation
+       -----------------------------------------------------------------------------*/
+
+
+       // Only ever called from the externally-facing API
+       function updateEvent(event) {
+               updateEvents([ event ]);
+       }
+
+
+       // Only ever called from the externally-facing API
+       function updateEvents(events) {
+               var i, event;
+
+               for (i = 0; i < events.length; i++) {
+                       event = events[i];
+
+                       // massage start/end values, even if date string values
+                       event.start = t.moment(event.start);
+                       if (event.end) {
+                               event.end = t.moment(event.end);
+                       }
+                       else {
+                               event.end = null;
+                       }
+
+                       mutateEvent(event, getMiscEventProps(event)); // will handle start/end/allDay normalization
+               }
+
+               reportEventChange(); // reports event modifications (so we can redraw)
+       }
+
+
+       // Returns a hash of misc event properties that should be copied over to related events.
+       function getMiscEventProps(event) {
+               var props = {};
+
+               $.each(event, function(name, val) {
+                       if (isMiscEventPropName(name)) {
+                               if (val !== undefined && isAtomic(val)) { // a defined non-object
+                                       props[name] = val;
+                               }
+                       }
+               });
+
+               return props;
+       }
+
+       // non-date-related, non-id-related, non-secret
+       function isMiscEventPropName(name) {
+               return !/^_|^(id|allDay|start|end)$/.test(name);
+       }
+
+
+       // returns the expanded events that were created
+       function renderEvent(eventInput, stick) {
+               return renderEvents([ eventInput ], stick);
+       }
+
+
+       // returns the expanded events that were created
+       function renderEvents(eventInputs, stick) {
+               var renderedEvents = [];
+               var renderableEvents;
+               var abstractEvent;
+               var i, j, event;
+
+               for (i = 0; i < eventInputs.length; i++) {
+                       abstractEvent = buildEventFromInput(eventInputs[i]);
+
+                       if (abstractEvent) { // not false (a valid input)
+                               renderableEvents = expandEvent(abstractEvent);
+
+                               for (j = 0; j < renderableEvents.length; j++) {
+                                       event = renderableEvents[j];
+
+                                       if (!event.source) {
+                                               if (stick) {
+                                                       stickySource.events.push(event);
+                                                       event.source = stickySource;
+                                               }
+                                               cache.push(event);
+                                       }
+                               }
+
+                               renderedEvents = renderedEvents.concat(renderableEvents);
+                       }
+               }
+
+               if (renderedEvents.length) { // any new events rendered?
+                       reportEventChange();
+               }
+
+               return renderedEvents;
+       }
+
+
+       function removeEvents(filter) {
+               var eventID;
+               var i;
+
+               if (filter == null) { // null or undefined. remove all events
+                       filter = function() { return true; }; // will always match
+               }
+               else if (!$.isFunction(filter)) { // an event ID
+                       eventID = filter + '';
+                       filter = function(event) {
+                               return event._id == eventID;
+                       };
+               }
+
+               // Purge event(s) from our local cache
+               cache = $.grep(cache, filter, true); // inverse=true
+
+               // Remove events from array sources.
+               // This works because they have been converted to official Event Objects up front.
+               // (and as a result, event._id has been calculated).
+               for (i=0; i<sources.length; i++) {
+                       if ($.isArray(sources[i].events)) {
+                               sources[i].events = $.grep(sources[i].events, filter, true);
+                       }
+               }
+
+               reportEventChange();
+       }
+
+
+       function clientEvents(filter) {
+               if ($.isFunction(filter)) {
+                       return $.grep(cache, filter);
+               }
+               else if (filter != null) { // not null, not undefined. an event ID
+                       filter += '';
+                       return $.grep(cache, function(e) {
+                               return e._id == filter;
+                       });
+               }
+               return cache; // else, return all
+       }
+
+
+       // Makes sure all array event sources have their internal event objects
+       // converted over to the Calendar's current timezone.
+       t.rezoneArrayEventSources = function() {
+               var i;
+               var events;
+               var j;
+
+               for (i = 0; i < sources.length; i++) {
+                       events = sources[i].events;
+                       if ($.isArray(events)) {
+
+                               for (j = 0; j < events.length; j++) {
+                                       rezoneEventDates(events[j]);
+                               }
+                       }
+               }
+       };
+
+       function rezoneEventDates(event) {
+               event.start = t.moment(event.start);
+               if (event.end) {
+                       event.end = t.moment(event.end);
+               }
+               backupEventDates(event);
+       }
+
+
+       /* Event Normalization
+       -----------------------------------------------------------------------------*/
+
+
+       // Given a raw object with key/value properties, returns an "abstract" Event object.
+       // An "abstract" event is an event that, if recurring, will not have been expanded yet.
+       // Will return `false` when input is invalid.
+       // `source` is optional
+       function buildEventFromInput(input, source) {
+               var out = {};
+               var start, end;
+               var allDay;
+
+               if (t.options.eventDataTransform) {
+                       input = t.options.eventDataTransform(input);
+               }
+               if (source && source.eventDataTransform) {
+                       input = source.eventDataTransform(input);
+               }
+
+               // Copy all properties over to the resulting object.
+               // The special-case properties will be copied over afterwards.
+               $.extend(out, input);
+
+               if (source) {
+                       out.source = source;
+               }
+
+               out._id = input._id || (input.id === undefined ? '_fc' + eventGUID++ : input.id + '');
+
+               if (input.className) {
+                       if (typeof input.className == 'string') {
+                               out.className = input.className.split(/\s+/);
+                       }
+                       else { // assumed to be an array
+                               out.className = input.className;
+                       }
+               }
+               else {
+                       out.className = [];
+               }
+
+               start = input.start || input.date; // "date" is an alias for "start"
+               end = input.end;
+
+               // parse as a time (Duration) if applicable
+               if (isTimeString(start)) {
+                       start = moment.duration(start);
+               }
+               if (isTimeString(end)) {
+                       end = moment.duration(end);
+               }
+
+               if (input.dow || moment.isDuration(start) || moment.isDuration(end)) {
+
+                       // the event is "abstract" (recurring) so don't calculate exact start/end dates just yet
+                       out.start = start ? moment.duration(start) : null; // will be a Duration or null
+                       out.end = end ? moment.duration(end) : null; // will be a Duration or null
+                       out._recurring = true; // our internal marker
+               }
+               else {
+
+                       if (start) {
+                               start = t.moment(start);
+                               if (!start.isValid()) {
+                                       return false;
+                               }
+                       }
+
+                       if (end) {
+                               end = t.moment(end);
+                               if (!end.isValid()) {
+                                       end = null; // let defaults take over
+                               }
+                       }
+
+                       allDay = input.allDay;
+                       if (allDay === undefined) { // still undefined? fallback to default
+                               allDay = firstDefined(
+                                       source ? source.allDayDefault : undefined,
+                                       t.options.allDayDefault
+                               );
+                               // still undefined? normalizeEventDates will calculate it
+                       }
+
+                       assignDatesToEvent(start, end, allDay, out);
+               }
+
+               t.normalizeEvent(out); // hook for external use. a prototype method
+
+               return out;
+       }
+       t.buildEventFromInput = buildEventFromInput;
+
+
+       // Normalizes and assigns the given dates to the given partially-formed event object.
+       // NOTE: mutates the given start/end moments. does not make a copy.
+       function assignDatesToEvent(start, end, allDay, event) {
+               event.start = start;
+               event.end = end;
+               event.allDay = allDay;
+               normalizeEventDates(event);
+               backupEventDates(event);
+       }
+
+
+       // Ensures proper values for allDay/start/end. Accepts an Event object, or a plain object with event-ish properties.
+       // NOTE: Will modify the given object.
+       function normalizeEventDates(eventProps) {
+
+               normalizeEventTimes(eventProps);
+
+               if (eventProps.end && !eventProps.end.isAfter(eventProps.start)) {
+                       eventProps.end = null;
+               }
+
+               if (!eventProps.end) {
+                       if (t.options.forceEventDuration) {
+                               eventProps.end = t.getDefaultEventEnd(eventProps.allDay, eventProps.start);
+                       }
+                       else {
+                               eventProps.end = null;
+                       }
+               }
+       }
+
+
+       // Ensures the allDay property exists and the timeliness of the start/end dates are consistent
+       function normalizeEventTimes(eventProps) {
+               if (eventProps.allDay == null) {
+                       eventProps.allDay = !(eventProps.start.hasTime() || (eventProps.end && eventProps.end.hasTime()));
+               }
+
+               if (eventProps.allDay) {
+                       eventProps.start.stripTime();
+                       if (eventProps.end) {
+                               // TODO: consider nextDayThreshold here? If so, will require a lot of testing and adjustment
+                               eventProps.end.stripTime();
+                       }
+               }
+               else {
+                       if (!eventProps.start.hasTime()) {
+                               eventProps.start = t.applyTimezone(eventProps.start.time(0)); // will assign a 00:00 time
+                       }
+                       if (eventProps.end && !eventProps.end.hasTime()) {
+                               eventProps.end = t.applyTimezone(eventProps.end.time(0)); // will assign a 00:00 time
+                       }
+               }
+       }
+
+
+       // If the given event is a recurring event, break it down into an array of individual instances.
+       // If not a recurring event, return an array with the single original event.
+       // If given a falsy input (probably because of a failed buildEventFromInput call), returns an empty array.
+       // HACK: can override the recurring window by providing custom rangeStart/rangeEnd (for businessHours).
+       function expandEvent(abstractEvent, _rangeStart, _rangeEnd) {
+               var events = [];
+               var dowHash;
+               var dow;
+               var i;
+               var date;
+               var startTime, endTime;
+               var start, end;
+               var event;
+
+               _rangeStart = _rangeStart || rangeStart;
+               _rangeEnd = _rangeEnd || rangeEnd;
+
+               if (abstractEvent) {
+                       if (abstractEvent._recurring) {
+
+                               // make a boolean hash as to whether the event occurs on each day-of-week
+                               if ((dow = abstractEvent.dow)) {
+                                       dowHash = {};
+                                       for (i = 0; i < dow.length; i++) {
+                                               dowHash[dow[i]] = true;
+                                       }
+                               }
+
+                               // iterate through every day in the current range
+                               date = _rangeStart.clone().stripTime(); // holds the date of the current day
+                               while (date.isBefore(_rangeEnd)) {
+
+                                       if (!dowHash || dowHash[date.day()]) { // if everyday, or this particular day-of-week
+
+                                               startTime = abstractEvent.start; // the stored start and end properties are times (Durations)
+                                               endTime = abstractEvent.end; // "
+                                               start = date.clone();
+                                               end = null;
+
+                                               if (startTime) {
+                                                       start = start.time(startTime);
+                                               }
+                                               if (endTime) {
+                                                       end = date.clone().time(endTime);
+                                               }
+
+                                               event = $.extend({}, abstractEvent); // make a copy of the original
+                                               assignDatesToEvent(
+                                                       start, end,
+                                                       !startTime && !endTime, // allDay?
+                                                       event
+                                               );
+                                               events.push(event);
+                                       }
+
+                                       date.add(1, 'days');
+                               }
+                       }
+                       else {
+                               events.push(abstractEvent); // return the original event. will be a one-item array
+                       }
+               }
+
+               return events;
+       }
+       t.expandEvent = expandEvent;
+
+
+
+       /* Event Modification Math
+       -----------------------------------------------------------------------------------------*/
+
+
+       // Modifies an event and all related events by applying the given properties.
+       // Special date-diffing logic is used for manipulation of dates.
+       // If `props` does not contain start/end dates, the updated values are assumed to be the event's current start/end.
+       // All date comparisons are done against the event's pristine _start and _end dates.
+       // Returns an object with delta information and a function to undo all operations.
+       // For making computations in a granularity greater than day/time, specify largeUnit.
+       // NOTE: The given `newProps` might be mutated for normalization purposes.
+       function mutateEvent(event, newProps, largeUnit) {
+               var miscProps = {};
+               var oldProps;
+               var clearEnd;
+               var startDelta;
+               var endDelta;
+               var durationDelta;
+               var undoFunc;
+
+               // diffs the dates in the appropriate way, returning a duration
+               function diffDates(date1, date0) { // date1 - date0
+                       if (largeUnit) {
+                               return diffByUnit(date1, date0, largeUnit);
+                       }
+                       else if (newProps.allDay) {
+                               return diffDay(date1, date0);
+                       }
+                       else {
+                               return diffDayTime(date1, date0);
+                       }
+               }
+
+               newProps = newProps || {};
+
+               // normalize new date-related properties
+               if (!newProps.start) {
+                       newProps.start = event.start.clone();
+               }
+               if (newProps.end === undefined) {
+                       newProps.end = event.end ? event.end.clone() : null;
+               }
+               if (newProps.allDay == null) { // is null or undefined?
+                       newProps.allDay = event.allDay;
+               }
+               normalizeEventDates(newProps);
+
+               // create normalized versions of the original props to compare against
+               // need a real end value, for diffing
+               oldProps = {
+                       start: event._start.clone(),
+                       end: event._end ? event._end.clone() : t.getDefaultEventEnd(event._allDay, event._start),
+                       allDay: newProps.allDay // normalize the dates in the same regard as the new properties
+               };
+               normalizeEventDates(oldProps);
+
+               // need to clear the end date if explicitly changed to null
+               clearEnd = event._end !== null && newProps.end === null;
+
+               // compute the delta for moving the start date
+               startDelta = diffDates(newProps.start, oldProps.start);
+
+               // compute the delta for moving the end date
+               if (newProps.end) {
+                       endDelta = diffDates(newProps.end, oldProps.end);
+                       durationDelta = endDelta.subtract(startDelta);
+               }
+               else {
+                       durationDelta = null;
+               }
+
+               // gather all non-date-related properties
+               $.each(newProps, function(name, val) {
+                       if (isMiscEventPropName(name)) {
+                               if (val !== undefined) {
+                                       miscProps[name] = val;
+                               }
+                       }
+               });
+
+               // apply the operations to the event and all related events
+               undoFunc = mutateEvents(
+                       clientEvents(event._id), // get events with this ID
+                       clearEnd,
+                       newProps.allDay,
+                       startDelta,
+                       durationDelta,
+                       miscProps
+               );
+
+               return {
+                       dateDelta: startDelta,
+                       durationDelta: durationDelta,
+                       undo: undoFunc
+               };
+       }
+
+
+       // Modifies an array of events in the following ways (operations are in order):
+       // - clear the event's `end`
+       // - convert the event to allDay
+       // - add `dateDelta` to the start and end
+       // - add `durationDelta` to the event's duration
+       // - assign `miscProps` to the event
+       //
+       // Returns a function that can be called to undo all the operations.
+       //
+       // TODO: don't use so many closures. possible memory issues when lots of events with same ID.
+       //
+       function mutateEvents(events, clearEnd, allDay, dateDelta, durationDelta, miscProps) {
+               var isAmbigTimezone = t.getIsAmbigTimezone();
+               var undoFunctions = [];
+
+               // normalize zero-length deltas to be null
+               if (dateDelta && !dateDelta.valueOf()) { dateDelta = null; }
+               if (durationDelta && !durationDelta.valueOf()) { durationDelta = null; }
+
+               $.each(events, function(i, event) {
+                       var oldProps;
+                       var newProps;
+
+                       // build an object holding all the old values, both date-related and misc.
+                       // for the undo function.
+                       oldProps = {
+                               start: event.start.clone(),
+                               end: event.end ? event.end.clone() : null,
+                               allDay: event.allDay
+                       };
+                       $.each(miscProps, function(name) {
+                               oldProps[name] = event[name];
+                       });
+
+                       // new date-related properties. work off the original date snapshot.
+                       // ok to use references because they will be thrown away when backupEventDates is called.
+                       newProps = {
+                               start: event._start,
+                               end: event._end,
+                               allDay: allDay // normalize the dates in the same regard as the new properties
+                       };
+                       normalizeEventDates(newProps); // massages start/end/allDay
+
+                       // strip or ensure the end date
+                       if (clearEnd) {
+                               newProps.end = null;
+                       }
+                       else if (durationDelta && !newProps.end) { // the duration translation requires an end date
+                               newProps.end = t.getDefaultEventEnd(newProps.allDay, newProps.start);
+                       }
+
+                       if (dateDelta) {
+                               newProps.start.add(dateDelta);
+                               if (newProps.end) {
+                                       newProps.end.add(dateDelta);
+                               }
+                       }
+
+                       if (durationDelta) {
+                               newProps.end.add(durationDelta); // end already ensured above
+                       }
+
+                       // if the dates have changed, and we know it is impossible to recompute the
+                       // timezone offsets, strip the zone.
+                       if (
+                               isAmbigTimezone &&
+                               !newProps.allDay &&
+                               (dateDelta || durationDelta)
+                       ) {
+                               newProps.start.stripZone();
+                               if (newProps.end) {
+                                       newProps.end.stripZone();
+                               }
+                       }
+
+                       $.extend(event, miscProps, newProps); // copy over misc props, then date-related props
+                       backupEventDates(event); // regenerate internal _start/_end/_allDay
+
+                       undoFunctions.push(function() {
+                               $.extend(event, oldProps);
+                               backupEventDates(event); // regenerate internal _start/_end/_allDay
+                       });
+               });
+
+               return function() {
+                       for (var i = 0; i < undoFunctions.length; i++) {
+                               undoFunctions[i]();
+                       }
+               };
+       }
+
+}
+
+
+// returns an undo function
+Calendar.prototype.mutateSeg = function(seg, newProps) {
+       return this.mutateEvent(seg.event, newProps);
+};
+
+
+// hook for external libs to manipulate event properties upon creation.
+// should manipulate the event in-place.
+Calendar.prototype.normalizeEvent = function(event) {
+};
+
+
+// Does the given span (start, end, and other location information)
+// fully contain the other?
+Calendar.prototype.spanContainsSpan = function(outerSpan, innerSpan) {
+       var eventStart = outerSpan.start.clone().stripZone();
+       var eventEnd = this.getEventEnd(outerSpan).stripZone();
+
+       return innerSpan.start >= eventStart && innerSpan.end <= eventEnd;
+};
+
+
+// Returns a list of events that the given event should be compared against when being considered for a move to
+// the specified span. Attached to the Calendar's prototype because EventManager is a mixin for a Calendar.
+Calendar.prototype.getPeerEvents = function(span, event) {
+       var cache = this.getEventCache();
+       var peerEvents = [];
+       var i, otherEvent;
+
+       for (i = 0; i < cache.length; i++) {
+               otherEvent = cache[i];
+               if (
+                       !event ||
+                       event._id !== otherEvent._id // don't compare the event to itself or other related [repeating] events
+               ) {
+                       peerEvents.push(otherEvent);
+               }
+       }
+
+       return peerEvents;
+};
+
+
+// updates the "backup" properties, which are preserved in order to compute diffs later on.
+function backupEventDates(event) {
+       event._allDay = event.allDay;
+       event._start = event.start.clone();
+       event._end = event.end ? event.end.clone() : null;
+}
+
+
+/* Overlapping / Constraining
+-----------------------------------------------------------------------------------------*/
+
+
+// Determines if the given event can be relocated to the given span (unzoned start/end with other misc data)
+Calendar.prototype.isEventSpanAllowed = function(span, event) {
+       var source = event.source || {};
+
+       var constraint = firstDefined(
+               event.constraint,
+               source.constraint,
+               this.options.eventConstraint
+       );
+
+       var overlap = firstDefined(
+               event.overlap,
+               source.overlap,
+               this.options.eventOverlap
+       );
+
+       return this.isSpanAllowed(span, constraint, overlap, event) &&
+               (!this.options.eventAllow || this.options.eventAllow(span, event) !== false);
+};
+
+
+// Determines if an external event can be relocated to the given span (unzoned start/end with other misc data)
+Calendar.prototype.isExternalSpanAllowed = function(eventSpan, eventLocation, eventProps) {
+       var eventInput;
+       var event;
+
+       // note: very similar logic is in View's reportExternalDrop
+       if (eventProps) {
+               eventInput = $.extend({}, eventProps, eventLocation);
+               event = this.expandEvent(
+                       this.buildEventFromInput(eventInput)
+               )[0];
+       }
+
+       if (event) {
+               return this.isEventSpanAllowed(eventSpan, event);
+       }
+       else { // treat it as a selection
+
+               return this.isSelectionSpanAllowed(eventSpan);
+       }
+};
+
+
+// Determines the given span (unzoned start/end with other misc data) can be selected.
+Calendar.prototype.isSelectionSpanAllowed = function(span) {
+       return this.isSpanAllowed(span, this.options.selectConstraint, this.options.selectOverlap) &&
+               (!this.options.selectAllow || this.options.selectAllow(span) !== false);
+};
+
+
+// Returns true if the given span (caused by an event drop/resize or a selection) is allowed to exist
+// according to the constraint/overlap settings.
+// `event` is not required if checking a selection.
+Calendar.prototype.isSpanAllowed = function(span, constraint, overlap, event) {
+       var constraintEvents;
+       var anyContainment;
+       var peerEvents;
+       var i, peerEvent;
+       var peerOverlap;
+
+       // the range must be fully contained by at least one of produced constraint events
+       if (constraint != null) {
+
+               // not treated as an event! intermediate data structure
+               // TODO: use ranges in the future
+               constraintEvents = this.constraintToEvents(constraint);
+               if (constraintEvents) { // not invalid
+
+                       anyContainment = false;
+                       for (i = 0; i < constraintEvents.length; i++) {
+                               if (this.spanContainsSpan(constraintEvents[i], span)) {
+                                       anyContainment = true;
+                                       break;
+                               }
+                       }
+
+                       if (!anyContainment) {
+                               return false;
+                       }
+               }
+       }
+
+       peerEvents = this.getPeerEvents(span, event);
+
+       for (i = 0; i < peerEvents.length; i++)  {
+               peerEvent = peerEvents[i];
+
+               // there needs to be an actual intersection before disallowing anything
+               if (this.eventIntersectsRange(peerEvent, span)) {
+
+                       // evaluate overlap for the given range and short-circuit if necessary
+                       if (overlap === false) {
+                               return false;
+                       }
+                       // if the event's overlap is a test function, pass the peer event in question as the first param
+                       else if (typeof overlap === 'function' && !overlap(peerEvent, event)) {
+                               return false;
+                       }
+
+                       // if we are computing if the given range is allowable for an event, consider the other event's
+                       // EventObject-specific or Source-specific `overlap` property
+                       if (event) {
+                               peerOverlap = firstDefined(
+                                       peerEvent.overlap,
+                                       (peerEvent.source || {}).overlap
+                                       // we already considered the global `eventOverlap`
+                               );
+                               if (peerOverlap === false) {
+                                       return false;
+                               }
+                               // if the peer event's overlap is a test function, pass the subject event as the first param
+                               if (typeof peerOverlap === 'function' && !peerOverlap(event, peerEvent)) {
+                                       return false;
+                               }
+                       }
+               }
+       }
+
+       return true;
+};
+
+
+// Given an event input from the API, produces an array of event objects. Possible event inputs:
+// 'businessHours'
+// An event ID (number or string)
+// An object with specific start/end dates or a recurring event (like what businessHours accepts)
+Calendar.prototype.constraintToEvents = function(constraintInput) {
+
+       if (constraintInput === 'businessHours') {
+               return this.getCurrentBusinessHourEvents();
+       }
+
+       if (typeof constraintInput === 'object') {
+               if (constraintInput.start != null) { // needs to be event-like input
+                       return this.expandEvent(this.buildEventFromInput(constraintInput));
+               }
+               else {
+                       return null; // invalid
+               }
+       }
+
+       return this.clientEvents(constraintInput); // probably an ID
+};
+
+
+// Does the event's date range intersect with the given range?
+// start/end already assumed to have stripped zones :(
+Calendar.prototype.eventIntersectsRange = function(event, range) {
+       var eventStart = event.start.clone().stripZone();
+       var eventEnd = this.getEventEnd(event).stripZone();
+
+       return range.start < eventEnd && range.end > eventStart;
+};
+
+
+/* Business Hours
+-----------------------------------------------------------------------------------------*/
+
+var BUSINESS_HOUR_EVENT_DEFAULTS = {
+       id: '_fcBusinessHours', // will relate events from different calls to expandEvent
+       start: '09:00',
+       end: '17:00',
+       dow: [ 1, 2, 3, 4, 5 ], // monday - friday
+       rendering: 'inverse-background'
+       // classNames are defined in businessHoursSegClasses
+};
+
+// Return events objects for business hours within the current view.
+// Abuse of our event system :(
+Calendar.prototype.getCurrentBusinessHourEvents = function(wholeDay) {
+       return this.computeBusinessHourEvents(wholeDay, this.options.businessHours);
+};
+
+// Given a raw input value from options, return events objects for business hours within the current view.
+Calendar.prototype.computeBusinessHourEvents = function(wholeDay, input) {
+       if (input === true) {
+               return this.expandBusinessHourEvents(wholeDay, [ {} ]);
+       }
+       else if ($.isPlainObject(input)) {
+               return this.expandBusinessHourEvents(wholeDay, [ input ]);
+       }
+       else if ($.isArray(input)) {
+               return this.expandBusinessHourEvents(wholeDay, input, true);
+       }
+       else {
+               return [];
+       }
+};
+
+// inputs expected to be an array of objects.
+// if ignoreNoDow is true, will ignore entries that don't specify a day-of-week (dow) key.
+Calendar.prototype.expandBusinessHourEvents = function(wholeDay, inputs, ignoreNoDow) {
+       var view = this.getView();
+       var events = [];
+       var i, input;
+
+       for (i = 0; i < inputs.length; i++) {
+               input = inputs[i];
+
+               if (ignoreNoDow && !input.dow) {
+                       continue;
+               }
+
+               // give defaults. will make a copy
+               input = $.extend({}, BUSINESS_HOUR_EVENT_DEFAULTS, input);
+
+               // if a whole-day series is requested, clear the start/end times
+               if (wholeDay) {
+                       input.start = null;
+                       input.end = null;
+               }
+
+               events.push.apply(events, // append
+                       this.expandEvent(
+                               this.buildEventFromInput(input),
+                               view.start,
+                               view.end
+                       )
+               );
+       }
+
+       return events;
+};
+
+;;
+
+/* An abstract class for the "basic" views, as well as month view. Renders one or more rows of day cells.
+----------------------------------------------------------------------------------------------------------------------*/
+// It is a manager for a DayGrid subcomponent, which does most of the heavy lifting.
+// It is responsible for managing width/height.
+
+var BasicView = FC.BasicView = View.extend({
+
+       scroller: null,
+
+       dayGridClass: DayGrid, // class the dayGrid will be instantiated from (overridable by subclasses)
+       dayGrid: null, // the main subcomponent that does most of the heavy lifting
+
+       dayNumbersVisible: false, // display day numbers on each day cell?
+       colWeekNumbersVisible: false, // display week numbers along the side?
+       cellWeekNumbersVisible: false, // display week numbers in day cell?
+
+       weekNumberWidth: null, // width of all the week-number cells running down the side
+
+       headContainerEl: null, // div that hold's the dayGrid's rendered date header
+       headRowEl: null, // the fake row element of the day-of-week header
+
+
+       initialize: function() {
+               this.dayGrid = this.instantiateDayGrid();
+
+               this.scroller = new Scroller({
+                       overflowX: 'hidden',
+                       overflowY: 'auto'
+               });
+       },
+
+
+       // Generates the DayGrid object this view needs. Draws from this.dayGridClass
+       instantiateDayGrid: function() {
+               // generate a subclass on the fly with BasicView-specific behavior
+               // TODO: cache this subclass
+               var subclass = this.dayGridClass.extend(basicDayGridMethods);
+
+               return new subclass(this);
+       },
+
+
+       // Sets the display range and computes all necessary dates
+       setRange: function(range) {
+               View.prototype.setRange.call(this, range); // call the super-method
+
+               this.dayGrid.breakOnWeeks = /year|month|week/.test(this.intervalUnit); // do before setRange
+               this.dayGrid.setRange(range);
+       },
+
+
+       // Compute the value to feed into setRange. Overrides superclass.
+       computeRange: function(date) {
+               var range = View.prototype.computeRange.call(this, date); // get value from the super-method
+
+               // year and month views should be aligned with weeks. this is already done for week
+               if (/year|month/.test(range.intervalUnit)) {
+                       range.start.startOf('week');
+                       range.start = this.skipHiddenDays(range.start);
+
+                       // make end-of-week if not already
+                       if (range.end.weekday()) {
+                               range.end.add(1, 'week').startOf('week');
+                               range.end = this.skipHiddenDays(range.end, -1, true); // exclusively move backwards
+                       }
+               }
+
+               return range;
+       },
+
+
+       // Renders the view into `this.el`, which should already be assigned
+       renderDates: function() {
+
+               this.dayNumbersVisible = this.dayGrid.rowCnt > 1; // TODO: make grid responsible
+               if (this.opt('weekNumbers')) {
+                       if (this.opt('weekNumbersWithinDays')) {
+                               this.cellWeekNumbersVisible = true;
+                               this.colWeekNumbersVisible = false;
+                       }
+                       else {
+                               this.cellWeekNumbersVisible = false;
+                               this.colWeekNumbersVisible = true;
+                       };
+               }
+               this.dayGrid.numbersVisible = this.dayNumbersVisible ||
+                       this.cellWeekNumbersVisible || this.colWeekNumbersVisible;
+
+               this.el.addClass('fc-basic-view').html(this.renderSkeletonHtml());
+               this.renderHead();
+
+               this.scroller.render();
+               var dayGridContainerEl = this.scroller.el.addClass('fc-day-grid-container');
+               var dayGridEl = $('<div class="fc-day-grid" />').appendTo(dayGridContainerEl);
+               this.el.find('.fc-body > tr > td').append(dayGridContainerEl);
+
+               this.dayGrid.setElement(dayGridEl);
+               this.dayGrid.renderDates(this.hasRigidRows());
+       },
+
+
+       // render the day-of-week headers
+       renderHead: function() {
+               this.headContainerEl =
+                       this.el.find('.fc-head-container')
+                               .html(this.dayGrid.renderHeadHtml());
+               this.headRowEl = this.headContainerEl.find('.fc-row');
+       },
+
+
+       // Unrenders the content of the view. Since we haven't separated skeleton rendering from date rendering,
+       // always completely kill the dayGrid's rendering.
+       unrenderDates: function() {
+               this.dayGrid.unrenderDates();
+               this.dayGrid.removeElement();
+               this.scroller.destroy();
+       },
+
+
+       renderBusinessHours: function() {
+               this.dayGrid.renderBusinessHours();
+       },
+
+
+       unrenderBusinessHours: function() {
+               this.dayGrid.unrenderBusinessHours();
+       },
+
+
+       // Builds the HTML skeleton for the view.
+       // The day-grid component will render inside of a container defined by this HTML.
+       renderSkeletonHtml: function() {
+               return '' +
+                       '<table>' +
+                               '<thead class="fc-head">' +
+                                       '<tr>' +
+                                               '<td class="fc-head-container ' + this.widgetHeaderClass + '"></td>' +
+                                       '</tr>' +
+                               '</thead>' +
+                               '<tbody class="fc-body">' +
+                                       '<tr>' +
+                                               '<td class="' + this.widgetContentClass + '"></td>' +
+                                       '</tr>' +
+                               '</tbody>' +
+                       '</table>';
+       },
+
+
+       // Generates an HTML attribute string for setting the width of the week number column, if it is known
+       weekNumberStyleAttr: function() {
+               if (this.weekNumberWidth !== null) {
+                       return 'style="width:' + this.weekNumberWidth + 'px"';
+               }
+               return '';
+       },
+
+
+       // Determines whether each row should have a constant height
+       hasRigidRows: function() {
+               var eventLimit = this.opt('eventLimit');
+               return eventLimit && typeof eventLimit !== 'number';
+       },
+
+
+       /* Dimensions
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Refreshes the horizontal dimensions of the view
+       updateWidth: function() {
+               if (this.colWeekNumbersVisible) {
+                       // Make sure all week number cells running down the side have the same width.
+                       // Record the width for cells created later.
+                       this.weekNumberWidth = matchCellWidths(
+                               this.el.find('.fc-week-number')
+                       );
+               }
+       },
+
+
+       // Adjusts the vertical dimensions of the view to the specified values
+       setHeight: function(totalHeight, isAuto) {
+               var eventLimit = this.opt('eventLimit');
+               var scrollerHeight;
+               var scrollbarWidths;
+
+               // reset all heights to be natural
+               this.scroller.clear();
+               uncompensateScroll(this.headRowEl);
+
+               this.dayGrid.removeSegPopover(); // kill the "more" popover if displayed
+
+               // is the event limit a constant level number?
+               if (eventLimit && typeof eventLimit === 'number') {
+                       this.dayGrid.limitRows(eventLimit); // limit the levels first so the height can redistribute after
+               }
+
+               // distribute the height to the rows
+               // (totalHeight is a "recommended" value if isAuto)
+               scrollerHeight = this.computeScrollerHeight(totalHeight);
+               this.setGridHeight(scrollerHeight, isAuto);
+
+               // is the event limit dynamically calculated?
+               if (eventLimit && typeof eventLimit !== 'number') {
+                       this.dayGrid.limitRows(eventLimit); // limit the levels after the grid's row heights have been set
+               }
+
+               if (!isAuto) { // should we force dimensions of the scroll container?
+
+                       this.scroller.setHeight(scrollerHeight);
+                       scrollbarWidths = this.scroller.getScrollbarWidths();
+
+                       if (scrollbarWidths.left || scrollbarWidths.right) { // using scrollbars?
+
+                               compensateScroll(this.headRowEl, scrollbarWidths);
+
+                               // doing the scrollbar compensation might have created text overflow which created more height. redo
+                               scrollerHeight = this.computeScrollerHeight(totalHeight);
+                               this.scroller.setHeight(scrollerHeight);
+                       }
+
+                       // guarantees the same scrollbar widths
+                       this.scroller.lockOverflow(scrollbarWidths);
+               }
+       },
+
+
+       // given a desired total height of the view, returns what the height of the scroller should be
+       computeScrollerHeight: function(totalHeight) {
+               return totalHeight -
+                       subtractInnerElHeight(this.el, this.scroller.el); // everything that's NOT the scroller
+       },
+
+
+       // Sets the height of just the DayGrid component in this view
+       setGridHeight: function(height, isAuto) {
+               if (isAuto) {
+                       undistributeHeight(this.dayGrid.rowEls); // let the rows be their natural height with no expanding
+               }
+               else {
+                       distributeHeight(this.dayGrid.rowEls, height, true); // true = compensate for height-hogging rows
+               }
+       },
+
+
+       /* Scroll
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       computeInitialScroll: function() {
+               return { top: 0 };
+       },
+
+
+       queryScroll: function() {
+               return { top: this.scroller.getScrollTop() };
+       },
+
+
+       setScroll: function(scroll) {
+               this.scroller.setScrollTop(scroll.top);
+       },
+
+
+       /* Hit Areas
+       ------------------------------------------------------------------------------------------------------------------*/
+       // forward all hit-related method calls to dayGrid
+
+
+       hitsNeeded: function() {
+               this.dayGrid.hitsNeeded();
+       },
+
+
+       hitsNotNeeded: function() {
+               this.dayGrid.hitsNotNeeded();
+       },
+
+
+       prepareHits: function() {
+               this.dayGrid.prepareHits();
+       },
+
+
+       releaseHits: function() {
+               this.dayGrid.releaseHits();
+       },
+
+
+       queryHit: function(left, top) {
+               return this.dayGrid.queryHit(left, top);
+       },
+
+
+       getHitSpan: function(hit) {
+               return this.dayGrid.getHitSpan(hit);
+       },
+
+
+       getHitEl: function(hit) {
+               return this.dayGrid.getHitEl(hit);
+       },
+
+
+       /* Events
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders the given events onto the view and populates the segments array
+       renderEvents: function(events) {
+               this.dayGrid.renderEvents(events);
+
+               this.updateHeight(); // must compensate for events that overflow the row
+       },
+
+
+       // Retrieves all segment objects that are rendered in the view
+       getEventSegs: function() {
+               return this.dayGrid.getEventSegs();
+       },
+
+
+       // Unrenders all event elements and clears internal segment data
+       unrenderEvents: function() {
+               this.dayGrid.unrenderEvents();
+
+               // we DON'T need to call updateHeight() because
+               // a renderEvents() call always happens after this, which will eventually call updateHeight()
+       },
+
+
+       /* Dragging (for both events and external elements)
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // A returned value of `true` signals that a mock "helper" event has been rendered.
+       renderDrag: function(dropLocation, seg) {
+               return this.dayGrid.renderDrag(dropLocation, seg);
+       },
+
+
+       unrenderDrag: function() {
+               this.dayGrid.unrenderDrag();
+       },
+
+
+       /* Selection
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a visual indication of a selection
+       renderSelection: function(span) {
+               this.dayGrid.renderSelection(span);
+       },
+
+
+       // Unrenders a visual indications of a selection
+       unrenderSelection: function() {
+               this.dayGrid.unrenderSelection();
+       }
+
+});
+
+
+// Methods that will customize the rendering behavior of the BasicView's dayGrid
+var basicDayGridMethods = {
+
+
+       // Generates the HTML that will go before the day-of week header cells
+       renderHeadIntroHtml: function() {
+               var view = this.view;
+
+               if (view.colWeekNumbersVisible) {
+                       return '' +
+                               '<th class="fc-week-number ' + view.widgetHeaderClass + '" ' + view.weekNumberStyleAttr() + '>' +
+                                       '<span>' + // needed for matchCellWidths
+                                               htmlEscape(view.opt('weekNumberTitle')) +
+                                       '</span>' +
+                               '</th>';
+               }
+
+               return '';
+       },
+
+
+       // Generates the HTML that will go before content-skeleton cells that display the day/week numbers
+       renderNumberIntroHtml: function(row) {
+               var view = this.view;
+               var weekStart = this.getCellDate(row, 0);
+
+               if (view.colWeekNumbersVisible) {
+                       return '' +
+                               '<td class="fc-week-number" ' + view.weekNumberStyleAttr() + '>' +
+                                       view.buildGotoAnchorHtml( // aside from link, important for matchCellWidths
+                                               { date: weekStart, type: 'week', forceOff: this.colCnt === 1 },
+                                               weekStart.format('w') // inner HTML
+                                       ) +
+                               '</td>';
+               }
+
+               return '';
+       },
+
+
+       // Generates the HTML that goes before the day bg cells for each day-row
+       renderBgIntroHtml: function() {
+               var view = this.view;
+
+               if (view.colWeekNumbersVisible) {
+                       return '<td class="fc-week-number ' + view.widgetContentClass + '" ' +
+                               view.weekNumberStyleAttr() + '></td>';
+               }
+
+               return '';
+       },
+
+
+       // Generates the HTML that goes before every other type of row generated by DayGrid.
+       // Affects helper-skeleton and highlight-skeleton rows.
+       renderIntroHtml: function() {
+               var view = this.view;
+
+               if (view.colWeekNumbersVisible) {
+                       return '<td class="fc-week-number" ' + view.weekNumberStyleAttr() + '></td>';
+               }
+
+               return '';
+       }
+
+};
+
+;;
+
+/* A month view with day cells running in rows (one-per-week) and columns
+----------------------------------------------------------------------------------------------------------------------*/
+
+var MonthView = FC.MonthView = BasicView.extend({
+
+       // Produces information about what range to display
+       computeRange: function(date) {
+               var range = BasicView.prototype.computeRange.call(this, date); // get value from super-method
+               var rowCnt;
+
+               // ensure 6 weeks
+               if (this.isFixedWeeks()) {
+                       rowCnt = Math.ceil(range.end.diff(range.start, 'weeks', true)); // could be partial weeks due to hiddenDays
+                       range.end.add(6 - rowCnt, 'weeks');
+               }
+
+               return range;
+       },
+
+
+       // Overrides the default BasicView behavior to have special multi-week auto-height logic
+       setGridHeight: function(height, isAuto) {
+
+               // if auto, make the height of each row the height that it would be if there were 6 weeks
+               if (isAuto) {
+                       height *= this.rowCnt / 6;
+               }
+
+               distributeHeight(this.dayGrid.rowEls, height, !isAuto); // if auto, don't compensate for height-hogging rows
+       },
+
+
+       isFixedWeeks: function() {
+               return this.opt('fixedWeekCount');
+       }
+
+});
+
+;;
+
+fcViews.basic = {
+       'class': BasicView
+};
+
+fcViews.basicDay = {
+       type: 'basic',
+       duration: { days: 1 }
+};
+
+fcViews.basicWeek = {
+       type: 'basic',
+       duration: { weeks: 1 }
+};
+
+fcViews.month = {
+       'class': MonthView,
+       duration: { months: 1 }, // important for prev/next
+       defaults: {
+               fixedWeekCount: true
+       }
+};
+;;
+
+/* An abstract class for all agenda-related views. Displays one more columns with time slots running vertically.
+----------------------------------------------------------------------------------------------------------------------*/
+// Is a manager for the TimeGrid subcomponent and possibly the DayGrid subcomponent (if allDaySlot is on).
+// Responsible for managing width/height.
+
+var AgendaView = FC.AgendaView = View.extend({
+
+       scroller: null,
+
+       timeGridClass: TimeGrid, // class used to instantiate the timeGrid. subclasses can override
+       timeGrid: null, // the main time-grid subcomponent of this view
+
+       dayGridClass: DayGrid, // class used to instantiate the dayGrid. subclasses can override
+       dayGrid: null, // the "all-day" subcomponent. if all-day is turned off, this will be null
+
+       axisWidth: null, // the width of the time axis running down the side
+
+       headContainerEl: null, // div that hold's the timeGrid's rendered date header
+       noScrollRowEls: null, // set of fake row elements that must compensate when scroller has scrollbars
+
+       // when the time-grid isn't tall enough to occupy the given height, we render an <hr> underneath
+       bottomRuleEl: null,
+
+
+       initialize: function() {
+               this.timeGrid = this.instantiateTimeGrid();
+
+               if (this.opt('allDaySlot')) { // should we display the "all-day" area?
+                       this.dayGrid = this.instantiateDayGrid(); // the all-day subcomponent of this view
+               }
+
+               this.scroller = new Scroller({
+                       overflowX: 'hidden',
+                       overflowY: 'auto'
+               });
+       },
+
+
+       // Instantiates the TimeGrid object this view needs. Draws from this.timeGridClass
+       instantiateTimeGrid: function() {
+               var subclass = this.timeGridClass.extend(agendaTimeGridMethods);
+
+               return new subclass(this);
+       },
+
+
+       // Instantiates the DayGrid object this view might need. Draws from this.dayGridClass
+       instantiateDayGrid: function() {
+               var subclass = this.dayGridClass.extend(agendaDayGridMethods);
+
+               return new subclass(this);
+       },
+
+
+       /* Rendering
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Sets the display range and computes all necessary dates
+       setRange: function(range) {
+               View.prototype.setRange.call(this, range); // call the super-method
+
+               this.timeGrid.setRange(range);
+               if (this.dayGrid) {
+                       this.dayGrid.setRange(range);
+               }
+       },
+
+
+       // Renders the view into `this.el`, which has already been assigned
+       renderDates: function() {
+
+               this.el.addClass('fc-agenda-view').html(this.renderSkeletonHtml());
+               this.renderHead();
+
+               this.scroller.render();
+               var timeGridWrapEl = this.scroller.el.addClass('fc-time-grid-container');
+               var timeGridEl = $('<div class="fc-time-grid" />').appendTo(timeGridWrapEl);
+               this.el.find('.fc-body > tr > td').append(timeGridWrapEl);
+
+               this.timeGrid.setElement(timeGridEl);
+               this.timeGrid.renderDates();
+
+               // the <hr> that sometimes displays under the time-grid
+               this.bottomRuleEl = $('<hr class="fc-divider ' + this.widgetHeaderClass + '"/>')
+                       .appendTo(this.timeGrid.el); // inject it into the time-grid
+
+               if (this.dayGrid) {
+                       this.dayGrid.setElement(this.el.find('.fc-day-grid'));
+                       this.dayGrid.renderDates();
+
+                       // have the day-grid extend it's coordinate area over the <hr> dividing the two grids
+                       this.dayGrid.bottomCoordPadding = this.dayGrid.el.next('hr').outerHeight();
+               }
+
+               this.noScrollRowEls = this.el.find('.fc-row:not(.fc-scroller *)'); // fake rows not within the scroller
+       },
+
+
+       // render the day-of-week headers
+       renderHead: function() {
+               this.headContainerEl =
+                       this.el.find('.fc-head-container')
+                               .html(this.timeGrid.renderHeadHtml());
+       },
+
+
+       // Unrenders the content of the view. Since we haven't separated skeleton rendering from date rendering,
+       // always completely kill each grid's rendering.
+       unrenderDates: function() {
+               this.timeGrid.unrenderDates();
+               this.timeGrid.removeElement();
+
+               if (this.dayGrid) {
+                       this.dayGrid.unrenderDates();
+                       this.dayGrid.removeElement();
+               }
+
+               this.scroller.destroy();
+       },
+
+
+       // Builds the HTML skeleton for the view.
+       // The day-grid and time-grid components will render inside containers defined by this HTML.
+       renderSkeletonHtml: function() {
+               return '' +
+                       '<table>' +
+                               '<thead class="fc-head">' +
+                                       '<tr>' +
+                                               '<td class="fc-head-container ' + this.widgetHeaderClass + '"></td>' +
+                                       '</tr>' +
+                               '</thead>' +
+                               '<tbody class="fc-body">' +
+                                       '<tr>' +
+                                               '<td class="' + this.widgetContentClass + '">' +
+                                                       (this.dayGrid ?
+                                                               '<div class="fc-day-grid"/>' +
+                                                               '<hr class="fc-divider ' + this.widgetHeaderClass + '"/>' :
+                                                               ''
+                                                               ) +
+                                               '</td>' +
+                                       '</tr>' +
+                               '</tbody>' +
+                       '</table>';
+       },
+
+
+       // Generates an HTML attribute string for setting the width of the axis, if it is known
+       axisStyleAttr: function() {
+               if (this.axisWidth !== null) {
+                        return 'style="width:' + this.axisWidth + 'px"';
+               }
+               return '';
+       },
+
+
+       /* Business Hours
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       renderBusinessHours: function() {
+               this.timeGrid.renderBusinessHours();
+
+               if (this.dayGrid) {
+                       this.dayGrid.renderBusinessHours();
+               }
+       },
+
+
+       unrenderBusinessHours: function() {
+               this.timeGrid.unrenderBusinessHours();
+
+               if (this.dayGrid) {
+                       this.dayGrid.unrenderBusinessHours();
+               }
+       },
+
+
+       /* Now Indicator
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       getNowIndicatorUnit: function() {
+               return this.timeGrid.getNowIndicatorUnit();
+       },
+
+
+       renderNowIndicator: function(date) {
+               this.timeGrid.renderNowIndicator(date);
+       },
+
+
+       unrenderNowIndicator: function() {
+               this.timeGrid.unrenderNowIndicator();
+       },
+
+
+       /* Dimensions
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       updateSize: function(isResize) {
+               this.timeGrid.updateSize(isResize);
+
+               View.prototype.updateSize.call(this, isResize); // call the super-method
+       },
+
+
+       // Refreshes the horizontal dimensions of the view
+       updateWidth: function() {
+               // make all axis cells line up, and record the width so newly created axis cells will have it
+               this.axisWidth = matchCellWidths(this.el.find('.fc-axis'));
+       },
+
+
+       // Adjusts the vertical dimensions of the view to the specified values
+       setHeight: function(totalHeight, isAuto) {
+               var eventLimit;
+               var scrollerHeight;
+               var scrollbarWidths;
+
+               // reset all dimensions back to the original state
+               this.bottomRuleEl.hide(); // .show() will be called later if this <hr> is necessary
+               this.scroller.clear(); // sets height to 'auto' and clears overflow
+               uncompensateScroll(this.noScrollRowEls);
+
+               // limit number of events in the all-day area
+               if (this.dayGrid) {
+                       this.dayGrid.removeSegPopover(); // kill the "more" popover if displayed
+
+                       eventLimit = this.opt('eventLimit');
+                       if (eventLimit && typeof eventLimit !== 'number') {
+                               eventLimit = AGENDA_ALL_DAY_EVENT_LIMIT; // make sure "auto" goes to a real number
+                       }
+                       if (eventLimit) {
+                               this.dayGrid.limitRows(eventLimit);
+                       }
+               }
+
+               if (!isAuto) { // should we force dimensions of the scroll container?
+
+                       scrollerHeight = this.computeScrollerHeight(totalHeight);
+                       this.scroller.setHeight(scrollerHeight);
+                       scrollbarWidths = this.scroller.getScrollbarWidths();
+
+                       if (scrollbarWidths.left || scrollbarWidths.right) { // using scrollbars?
+
+                               // make the all-day and header rows lines up
+                               compensateScroll(this.noScrollRowEls, scrollbarWidths);
+
+                               // the scrollbar compensation might have changed text flow, which might affect height, so recalculate
+                               // and reapply the desired height to the scroller.
+                               scrollerHeight = this.computeScrollerHeight(totalHeight);
+                               this.scroller.setHeight(scrollerHeight);
+                       }
+
+                       // guarantees the same scrollbar widths
+                       this.scroller.lockOverflow(scrollbarWidths);
+
+                       // if there's any space below the slats, show the horizontal rule.
+                       // this won't cause any new overflow, because lockOverflow already called.
+                       if (this.timeGrid.getTotalSlatHeight() < scrollerHeight) {
+                               this.bottomRuleEl.show();
+                       }
+               }
+       },
+
+
+       // given a desired total height of the view, returns what the height of the scroller should be
+       computeScrollerHeight: function(totalHeight) {
+               return totalHeight -
+                       subtractInnerElHeight(this.el, this.scroller.el); // everything that's NOT the scroller
+       },
+
 
-}
+       /* Scroll
+       ------------------------------------------------------------------------------------------------------------------*/
 
 
-function countForwardSegs(levels) {
-       var i, j, k, level, segForward, segBack;
-       for (i=levels.length-1; i>0; i--) {
-               level = levels[i];
-               for (j=0; j<level.length; j++) {
-                       segForward = level[j];
-                       for (k=0; k<levels[i-1].length; k++) {
-                               segBack = levels[i-1][k];
-                               if (segsCollide(segForward, segBack)) {
-                                       segBack.forward = Math.max(segBack.forward||0, (segForward.forward||0)+1);
-                               }
-                       }
+       // Computes the initial pre-configured scroll state prior to allowing the user to change it
+       computeInitialScroll: function() {
+               var scrollTime = moment.duration(this.opt('scrollTime'));
+               var top = this.timeGrid.computeTimeTop(scrollTime);
+
+               // zoom can give weird floating-point values. rather scroll a little bit further
+               top = Math.ceil(top);
+
+               if (top) {
+                       top++; // to overcome top border that slots beyond the first have. looks better
                }
-       }
-}
 
+               return { top: top };
+       },
 
 
+       queryScroll: function() {
+               return { top: this.scroller.getScrollTop() };
+       },
 
-function View(element, calendar, viewName) {
-       var t = this;
-       
-       
-       // exports
-       t.element = element;
-       t.calendar = calendar;
-       t.name = viewName;
-       t.opt = opt;
-       t.trigger = trigger;
-       //t.setOverflowHidden = setOverflowHidden;
-       t.isEventDraggable = isEventDraggable;
-       t.isEventResizable = isEventResizable;
-       t.reportEvents = reportEvents;
-       t.eventEnd = eventEnd;
-       t.reportEventElement = reportEventElement;
-       t.reportEventClear = reportEventClear;
-       t.eventElementHandlers = eventElementHandlers;
-       t.showEvents = showEvents;
-       t.hideEvents = hideEvents;
-       t.eventDrop = eventDrop;
-       t.eventResize = eventResize;
-       // t.title
-       // t.start, t.end
-       // t.visStart, t.visEnd
-       
-       
-       // imports
-       var defaultEventEnd = t.defaultEventEnd;
-       var normalizeEvent = calendar.normalizeEvent; // in EventManager
-       var reportEventChange = calendar.reportEventChange;
-       
-       
-       // locals
-       var eventsByID = {};
-       var eventElements = [];
-       var eventElementsByID = {};
-       var options = calendar.options;
-       
-       
-       
-       function opt(name, viewNameOverride) {
-               var v = options[name];
-               if (typeof v == 'object') {
-                       return smartProperty(v, viewNameOverride || viewName);
+
+       setScroll: function(scroll) {
+               this.scroller.setScrollTop(scroll.top);
+       },
+
+
+       /* Hit Areas
+       ------------------------------------------------------------------------------------------------------------------*/
+       // forward all hit-related method calls to the grids (dayGrid might not be defined)
+
+
+       hitsNeeded: function() {
+               this.timeGrid.hitsNeeded();
+               if (this.dayGrid) {
+                       this.dayGrid.hitsNeeded();
                }
-               return v;
-       }
+       },
 
-       
-       function trigger(name, thisObj) {
-               return calendar.trigger.apply(
-                       calendar,
-                       [name, thisObj || t].concat(Array.prototype.slice.call(arguments, 2), [t])
-               );
-       }
-       
-       
-       /*
-       function setOverflowHidden(bool) {
-               element.css('overflow', bool ? 'hidden' : '');
-       }
-       */
-       
-       
-       function isEventDraggable(event) {
-               return isEventEditable(event) && !opt('disableDragging');
-       }
-       
-       
-       function isEventResizable(event) { // but also need to make sure the seg.isEnd == true
-               return isEventEditable(event) && !opt('disableResizing');
-       }
-       
-       
-       function isEventEditable(event) {
-               return firstDefined(event.editable, (event.source || {}).editable, opt('editable'));
-       }
-       
-       
-       
-       /* Event Data
-       ------------------------------------------------------------------------------*/
-       
-       
-       // report when view receives new events
-       function reportEvents(events) { // events are already normalized at this point
-               eventsByID = {};
-               var i, len=events.length, event;
-               for (i=0; i<len; i++) {
-                       event = events[i];
-                       if (eventsByID[event._id]) {
-                               eventsByID[event._id].push(event);
-                       }else{
-                               eventsByID[event._id] = [event];
-                       }
+
+       hitsNotNeeded: function() {
+               this.timeGrid.hitsNotNeeded();
+               if (this.dayGrid) {
+                       this.dayGrid.hitsNotNeeded();
                }
-       }
-       
-       
-       // returns a Date object for an event's end
-       function eventEnd(event) {
-               return event.end ? cloneDate(event.end) : defaultEventEnd(event);
-       }
-       
-       
-       
-       /* Event Elements
-       ------------------------------------------------------------------------------*/
-       
-       
-       // report when view creates an element for an event
-       function reportEventElement(event, element) {
-               eventElements.push(element);
-               if (eventElementsByID[event._id]) {
-                       eventElementsByID[event._id].push(element);
-               }else{
-                       eventElementsByID[event._id] = [element];
+       },
+
+
+       prepareHits: function() {
+               this.timeGrid.prepareHits();
+               if (this.dayGrid) {
+                       this.dayGrid.prepareHits();
                }
-       }
-       
-       
-       function reportEventClear() {
-               eventElements = [];
-               eventElementsByID = {};
-       }
-       
-       
-       // attaches eventClick, eventMouseover, eventMouseout
-       function eventElementHandlers(event, eventElement) {
-               eventElement
-                       .click(function(ev) {
-                               if (!eventElement.hasClass('ui-draggable-dragging') &&
-                                       !eventElement.hasClass('ui-resizable-resizing')) {
-                                               return trigger('eventClick', this, event, ev);
-                                       }
-                       })
-                       .hover(
-                               function(ev) {
-                                       trigger('eventMouseover', this, event, ev);
-                               },
-                               function(ev) {
-                                       trigger('eventMouseout', this, event, ev);
-                               }
-                       );
-               // TODO: don't fire eventMouseover/eventMouseout *while* dragging is occuring (on subject element)
-               // TODO: same for resizing
-       }
-       
-       
-       function showEvents(event, exceptElement) {
-               eachEventElement(event, exceptElement, 'show');
-       }
-       
-       
-       function hideEvents(event, exceptElement) {
-               eachEventElement(event, exceptElement, 'hide');
-       }
-       
-       
-       function eachEventElement(event, exceptElement, funcName) {
-               var elements = eventElementsByID[event._id],
-                       i, len = elements.length;
-               for (i=0; i<len; i++) {
-                       if (!exceptElement || elements[i][0] != exceptElement[0]) {
-                               elements[i][funcName]();
-                       }
+       },
+
+
+       releaseHits: function() {
+               this.timeGrid.releaseHits();
+               if (this.dayGrid) {
+                       this.dayGrid.releaseHits();
                }
-       }
-       
-       
-       
-       /* Event Modification Reporting
-       ---------------------------------------------------------------------------------*/
-       
-       
-       function eventDrop(e, event, dayDelta, minuteDelta, allDay, ev, ui) {
-               var oldAllDay = event.allDay;
-               var eventId = event._id;
-               moveEvents(eventsByID[eventId], dayDelta, minuteDelta, allDay);
-               trigger(
-                       'eventDrop',
-                       e,
-                       event,
-                       dayDelta,
-                       minuteDelta,
-                       allDay,
-                       function() {
-                               // TODO: investigate cases where this inverse technique might not work
-                               moveEvents(eventsByID[eventId], -dayDelta, -minuteDelta, oldAllDay);
-                               reportEventChange(eventId);
-                       },
-                       ev,
-                       ui
-               );
-               reportEventChange(eventId);
-       }
-       
-       
-       function eventResize(e, event, dayDelta, minuteDelta, ev, ui) {
-               var eventId = event._id;
-               elongateEvents(eventsByID[eventId], dayDelta, minuteDelta);
-               trigger(
-                       'eventResize',
-                       e,
-                       event,
-                       dayDelta,
-                       minuteDelta,
-                       function() {
-                               // TODO: investigate cases where this inverse technique might not work
-                               elongateEvents(eventsByID[eventId], -dayDelta, -minuteDelta);
-                               reportEventChange(eventId);
-                       },
-                       ev,
-                       ui
-               );
-               reportEventChange(eventId);
-       }
-       
-       
-       
-       /* Event Modification Math
-       ---------------------------------------------------------------------------------*/
-       
-       
-       function moveEvents(events, dayDelta, minuteDelta, allDay) {
-               minuteDelta = minuteDelta || 0;
-               for (var e, len=events.length, i=0; i<len; i++) {
-                       e = events[i];
-                       if (allDay !== undefined) {
-                               e.allDay = allDay;
+       },
+
+
+       queryHit: function(left, top) {
+               var hit = this.timeGrid.queryHit(left, top);
+
+               if (!hit && this.dayGrid) {
+                       hit = this.dayGrid.queryHit(left, top);
+               }
+
+               return hit;
+       },
+
+
+       getHitSpan: function(hit) {
+               // TODO: hit.component is set as a hack to identify where the hit came from
+               return hit.component.getHitSpan(hit);
+       },
+
+
+       getHitEl: function(hit) {
+               // TODO: hit.component is set as a hack to identify where the hit came from
+               return hit.component.getHitEl(hit);
+       },
+
+
+       /* Events
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders events onto the view and populates the View's segment array
+       renderEvents: function(events) {
+               var dayEvents = [];
+               var timedEvents = [];
+               var daySegs = [];
+               var timedSegs;
+               var i;
+
+               // separate the events into all-day and timed
+               for (i = 0; i < events.length; i++) {
+                       if (events[i].allDay) {
+                               dayEvents.push(events[i]);
                        }
-                       addMinutes(addDays(e.start, dayDelta, true), minuteDelta);
-                       if (e.end) {
-                               e.end = addMinutes(addDays(e.end, dayDelta, true), minuteDelta);
+                       else {
+                               timedEvents.push(events[i]);
                        }
-                       normalizeEvent(e, options);
                }
-       }
-       
-       
-       function elongateEvents(events, dayDelta, minuteDelta) {
-               minuteDelta = minuteDelta || 0;
-               for (var e, len=events.length, i=0; i<len; i++) {
-                       e = events[i];
-                       e.end = addMinutes(addDays(eventEnd(e), dayDelta, true), minuteDelta);
-                       normalizeEvent(e, options);
+
+               // render the events in the subcomponents
+               timedSegs = this.timeGrid.renderEvents(timedEvents);
+               if (this.dayGrid) {
+                       daySegs = this.dayGrid.renderEvents(dayEvents);
                }
-       }
-       
 
-}
+               // the all-day area is flexible and might have a lot of events, so shift the height
+               this.updateHeight();
+       },
 
-function DayEventRenderer() {
-       var t = this;
 
-       
-       // exports
-       t.renderDaySegs = renderDaySegs;
-       t.resizableDayEvent = resizableDayEvent;
-       
-       
-       // imports
-       var opt = t.opt;
-       var trigger = t.trigger;
-       var isEventDraggable = t.isEventDraggable;
-       var isEventResizable = t.isEventResizable;
-       var eventEnd = t.eventEnd;
-       var reportEventElement = t.reportEventElement;
-       var showEvents = t.showEvents;
-       var hideEvents = t.hideEvents;
-       var eventResize = t.eventResize;
-       var getRowCnt = t.getRowCnt;
-       var getColCnt = t.getColCnt;
-       var getColWidth = t.getColWidth;
-       var allDayRow = t.allDayRow;
-       var allDayBounds = t.allDayBounds;
-       var colContentLeft = t.colContentLeft;
-       var colContentRight = t.colContentRight;
-       var dayOfWeekCol = t.dayOfWeekCol;
-       var dateCell = t.dateCell;
-       var compileDaySegs = t.compileDaySegs;
-       var getDaySegmentContainer = t.getDaySegmentContainer;
-       var bindDaySeg = t.bindDaySeg; //TODO: streamline this
-       var formatDates = t.calendar.formatDates;
-       var renderDayOverlay = t.renderDayOverlay;
-       var clearOverlays = t.clearOverlays;
-       var clearSelection = t.clearSelection;
-       
-       
-       
-       /* Rendering
-       -----------------------------------------------------------------------------*/
-       
-       
-       function renderDaySegs(segs, modifiedEventId) {
-               var segmentContainer = getDaySegmentContainer();
-               var rowDivs;
-               var rowCnt = getRowCnt();
-               var colCnt = getColCnt();
-               var i = 0;
-               var rowI;
-               var levelI;
-               var colHeights;
-               var j;
-               var segCnt = segs.length;
-               var seg;
-               var top;
-               var k;
-               segmentContainer[0].innerHTML = daySegHTML(segs); // faster than .html()
-               daySegElementResolve(segs, segmentContainer.children());
-               daySegElementReport(segs);
-               daySegHandlers(segs, segmentContainer, modifiedEventId);
-               daySegCalcHSides(segs);
-               daySegSetWidths(segs);
-               daySegCalcHeights(segs);
-               rowDivs = getRowDivs();
-               // set row heights, calculate event tops (in relation to row top)
-               for (rowI=0; rowI<rowCnt; rowI++) {
-                       levelI = 0;
-                       colHeights = [];
-                       for (j=0; j<colCnt; j++) {
-                               colHeights[j] = 0;
-                       }
-                       while (i<segCnt && (seg = segs[i]).row == rowI) {
-                               // loop through segs in a row
-                               top = arrayMax(colHeights.slice(seg.startCol, seg.endCol));
-                               seg.top = top;
-                               top += seg.outerHeight;
-                               for (k=seg.startCol; k<seg.endCol; k++) {
-                                       colHeights[k] = top;
-                               }
-                               i++;
-                       }
-                       rowDivs[rowI].height(arrayMax(colHeights));
-               }
-               daySegSetTops(segs, getRowTops(rowDivs));
-       }
-       
-       
-       function renderTempDaySegs(segs, adjustRow, adjustTop) {
-               var tempContainer = $("<div/>");
-               var elements;
-               var segmentContainer = getDaySegmentContainer();
-               var i;
-               var segCnt = segs.length;
-               var element;
-               tempContainer[0].innerHTML = daySegHTML(segs); // faster than .html()
-               elements = tempContainer.children();
-               segmentContainer.append(elements);
-               daySegElementResolve(segs, elements);
-               daySegCalcHSides(segs);
-               daySegSetWidths(segs);
-               daySegCalcHeights(segs);
-               daySegSetTops(segs, getRowTops(getRowDivs()));
-               elements = [];
-               for (i=0; i<segCnt; i++) {
-                       element = segs[i].element;
-                       if (element) {
-                               if (segs[i].row === adjustRow) {
-                                       element.css('top', adjustTop);
-                               }
-                               elements.push(element[0]);
-                       }
+       // Retrieves all segment objects that are rendered in the view
+       getEventSegs: function() {
+               return this.timeGrid.getEventSegs().concat(
+                       this.dayGrid ? this.dayGrid.getEventSegs() : []
+               );
+       },
+
+
+       // Unrenders all event elements and clears internal segment data
+       unrenderEvents: function() {
+
+               // unrender the events in the subcomponents
+               this.timeGrid.unrenderEvents();
+               if (this.dayGrid) {
+                       this.dayGrid.unrenderEvents();
                }
-               return $(elements);
-       }
-       
-       
-       function daySegHTML(segs) { // also sets seg.left and seg.outerWidth
-               var rtl = opt('isRTL');
-               var i;
-               var segCnt=segs.length;
-               var seg;
-               var event;
-               var url;
-               var classes;
-               var bounds = allDayBounds();
-               var minLeft = bounds.left;
-               var maxLeft = bounds.right;
-               var leftCol;
-               var rightCol;
-               var left;
-               var right;
-               var skinCss;
-               var html = '';
-               // calculate desired position/dimensions, create html
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       event = seg.event;
-                       classes = ['fc-event', 'fc-event-skin', 'fc-event-hori'];
-                       if (isEventDraggable(event)) {
-                               classes.push('fc-event-draggable');
-                       }
-                       if (rtl) {
-                               if (seg.isStart) {
-                                       classes.push('fc-corner-right');
-                               }
-                               if (seg.isEnd) {
-                                       classes.push('fc-corner-left');
-                               }
-                               leftCol = dayOfWeekCol(seg.end.getDay()-1);
-                               rightCol = dayOfWeekCol(seg.start.getDay());
-                               left = seg.isEnd ? colContentLeft(leftCol) : minLeft;
-                               right = seg.isStart ? colContentRight(rightCol) : maxLeft;
-                       }else{
-                               if (seg.isStart) {
-                                       classes.push('fc-corner-left');
-                               }
-                               if (seg.isEnd) {
-                                       classes.push('fc-corner-right');
-                               }
-                               leftCol = dayOfWeekCol(seg.start.getDay());
-                               rightCol = dayOfWeekCol(seg.end.getDay()-1);
-                               left = seg.isStart ? colContentLeft(leftCol) : minLeft;
-                               right = seg.isEnd ? colContentRight(rightCol) : maxLeft;
-                       }
-                       classes = classes.concat(event.className);
-                       if (event.source) {
-                               classes = classes.concat(event.source.className || []);
-                       }
-                       url = event.url;
-                       skinCss = getSkinCss(event, opt);
-                       if (url) {
-                               html += "<a href='" + htmlEscape(url) + "'";
-                       }else{
-                               html += "<div";
-                       }
-                       html +=
-                               " class='" + classes.join(' ') + "'" +
-                               " style='position:absolute;z-index:8;left:"+left+"px;" + skinCss + "'" +
-                               ">" +
-                               "<div" +
-                               " class='fc-event-inner fc-event-skin'" +
-                               (skinCss ? " style='" + skinCss + "'" : '') +
-                               ">";
-                       if (!event.allDay && seg.isStart) {
-                               html +=
-                                       "<span class='fc-event-time'>" +
-                                       htmlEscape(formatDates(event.start, event.end, opt('timeFormat'))) +
-                                       "</span>";
-                       }
-                       html +=
-                               "<span class='fc-event-title'>" + htmlEscape(event.title) + "</span>" +
-                               "</div>";
-                       if (seg.isEnd && isEventResizable(event)) {
-                               html +=
-                                       "<div class='ui-resizable-handle ui-resizable-" + (rtl ? 'w' : 'e') + "'>" +
-                                       "&nbsp;&nbsp;&nbsp;" + // makes hit area a lot better for IE6/7
-                                       "</div>";
-                       }
-                       html +=
-                               "</" + (url ? "a" : "div" ) + ">";
-                       seg.left = left;
-                       seg.outerWidth = right - left;
-                       seg.startCol = leftCol;
-                       seg.endCol = rightCol + 1; // needs to be exclusive
+
+               // we DON'T need to call updateHeight() because
+               // a renderEvents() call always happens after this, which will eventually call updateHeight()
+       },
+
+
+       /* Dragging (for events and external elements)
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // A returned value of `true` signals that a mock "helper" event has been rendered.
+       renderDrag: function(dropLocation, seg) {
+               if (dropLocation.start.hasTime()) {
+                       return this.timeGrid.renderDrag(dropLocation, seg);
                }
-               return html;
-       }
-       
-       
-       function daySegElementResolve(segs, elements) { // sets seg.element
-               var i;
-               var segCnt = segs.length;
-               var seg;
-               var event;
-               var element;
-               var triggerRes;
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       event = seg.event;
-                       element = $(elements[i]); // faster than .eq()
-                       triggerRes = trigger('eventRender', event, event, element);
-                       if (triggerRes === false) {
-                               element.remove();
-                       }else{
-                               if (triggerRes && triggerRes !== true) {
-                                       triggerRes = $(triggerRes)
-                                               .css({
-                                                       position: 'absolute',
-                                                       left: seg.left
-                                               });
-                                       element.replaceWith(triggerRes);
-                                       element = triggerRes;
-                               }
-                               seg.element = element;
-                       }
+               else if (this.dayGrid) {
+                       return this.dayGrid.renderDrag(dropLocation, seg);
                }
-       }
-       
-       
-       function daySegElementReport(segs) {
-               var i;
-               var segCnt = segs.length;
-               var seg;
-               var element;
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       element = seg.element;
-                       if (element) {
-                               reportEventElement(seg.event, element);
-                       }
+       },
+
+
+       unrenderDrag: function() {
+               this.timeGrid.unrenderDrag();
+               if (this.dayGrid) {
+                       this.dayGrid.unrenderDrag();
                }
-       }
-       
-       
-       function daySegHandlers(segs, segmentContainer, modifiedEventId) {
-               var i;
-               var segCnt = segs.length;
-               var seg;
-               var element;
-               var event;
-               // retrieve elements, run through eventRender callback, bind handlers
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       element = seg.element;
-                       if (element) {
-                               event = seg.event;
-                               if (event._id === modifiedEventId) {
-                                       bindDaySeg(event, element, seg);
-                               }else{
-                                       element[0]._fci = i; // for lazySegBind
-                               }
-                       }
+       },
+
+
+       /* Selection
+       ------------------------------------------------------------------------------------------------------------------*/
+
+
+       // Renders a visual indication of a selection
+       renderSelection: function(span) {
+               if (span.start.hasTime() || span.end.hasTime()) {
+                       this.timeGrid.renderSelection(span);
                }
-               lazySegBind(segmentContainer, segs, bindDaySeg);
-       }
-       
-       
-       function daySegCalcHSides(segs) { // also sets seg.key
-               var i;
-               var segCnt = segs.length;
-               var seg;
-               var element;
-               var key, val;
-               var hsideCache = {};
-               // record event horizontal sides
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       element = seg.element;
-                       if (element) {
-                               key = seg.key = cssKey(element[0]);
-                               val = hsideCache[key];
-                               if (val === undefined) {
-                                       val = hsideCache[key] = hsides(element, true);
-                               }
-                               seg.hsides = val;
-                       }
+               else if (this.dayGrid) {
+                       this.dayGrid.renderSelection(span);
                }
-       }
-       
-       
-       function daySegSetWidths(segs) {
-               var i;
-               var segCnt = segs.length;
-               var seg;
-               var element;
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       element = seg.element;
-                       if (element) {
-                               element[0].style.width = Math.max(0, seg.outerWidth - seg.hsides) + 'px';
-                       }
+       },
+
+
+       // Unrenders a visual indications of a selection
+       unrenderSelection: function() {
+               this.timeGrid.unrenderSelection();
+               if (this.dayGrid) {
+                       this.dayGrid.unrenderSelection();
                }
        }
-       
-       
-       function daySegCalcHeights(segs) {
-               var i;
-               var segCnt = segs.length;
-               var seg;
-               var element;
-               var key, val;
-               var vmarginCache = {};
-               // record event heights
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       element = seg.element;
-                       if (element) {
-                               key = seg.key; // created in daySegCalcHSides
-                               val = vmarginCache[key];
-                               if (val === undefined) {
-                                       val = vmarginCache[key] = vmargins(element);
-                               }
-                               seg.outerHeight = element[0].offsetHeight + val;
-                       }
+
+});
+
+
+// Methods that will customize the rendering behavior of the AgendaView's timeGrid
+// TODO: move into TimeGrid
+var agendaTimeGridMethods = {
+
+
+       // Generates the HTML that will go before the day-of week header cells
+       renderHeadIntroHtml: function() {
+               var view = this.view;
+               var weekText;
+
+               if (view.opt('weekNumbers')) {
+                       weekText = this.start.format(view.opt('smallWeekFormat'));
+
+                       return '' +
+                               '<th class="fc-axis fc-week-number ' + view.widgetHeaderClass + '" ' + view.axisStyleAttr() + '>' +
+                                       view.buildGotoAnchorHtml( // aside from link, important for matchCellWidths
+                                               { date: this.start, type: 'week', forceOff: this.colCnt > 1 },
+                                               htmlEscape(weekText) // inner HTML
+                                       ) +
+                               '</th>';
                }
-       }
-       
-       
-       function getRowDivs() {
-               var i;
-               var rowCnt = getRowCnt();
-               var rowDivs = [];
-               for (i=0; i<rowCnt; i++) {
-                       rowDivs[i] = allDayRow(i)
-                               .find('td:first div.fc-day-content > div'); // optimal selector?
+               else {
+                       return '<th class="fc-axis ' + view.widgetHeaderClass + '" ' + view.axisStyleAttr() + '></th>';
                }
-               return rowDivs;
+       },
+
+
+       // Generates the HTML that goes before the bg of the TimeGrid slot area. Long vertical column.
+       renderBgIntroHtml: function() {
+               var view = this.view;
+
+               return '<td class="fc-axis ' + view.widgetContentClass + '" ' + view.axisStyleAttr() + '></td>';
+       },
+
+
+       // Generates the HTML that goes before all other types of cells.
+       // Affects content-skeleton, helper-skeleton, highlight-skeleton for both the time-grid and day-grid.
+       renderIntroHtml: function() {
+               var view = this.view;
+
+               return '<td class="fc-axis" ' + view.axisStyleAttr() + '></td>';
        }
-       
-       
-       function getRowTops(rowDivs) {
-               var i;
-               var rowCnt = rowDivs.length;
-               var tops = [];
-               for (i=0; i<rowCnt; i++) {
-                       tops[i] = rowDivs[i][0].offsetTop; // !!?? but this means the element needs position:relative if in a table cell!!!!
-               }
-               return tops;
+
+};
+
+
+// Methods that will customize the rendering behavior of the AgendaView's dayGrid
+var agendaDayGridMethods = {
+
+
+       // Generates the HTML that goes before the all-day cells
+       renderBgIntroHtml: function() {
+               var view = this.view;
+
+               return '' +
+                       '<td class="fc-axis ' + view.widgetContentClass + '" ' + view.axisStyleAttr() + '>' +
+                               '<span>' + // needed for matchCellWidths
+                                       view.getAllDayHtml() +
+                               '</span>' +
+                       '</td>';
+       },
+
+
+       // Generates the HTML that goes before all other types of cells.
+       // Affects content-skeleton, helper-skeleton, highlight-skeleton for both the time-grid and day-grid.
+       renderIntroHtml: function() {
+               var view = this.view;
+
+               return '<td class="fc-axis" ' + view.axisStyleAttr() + '></td>';
        }
-       
-       
-       function daySegSetTops(segs, rowTops) { // also triggers eventAfterRender
-               var i;
-               var segCnt = segs.length;
-               var seg;
-               var element;
-               var event;
-               for (i=0; i<segCnt; i++) {
-                       seg = segs[i];
-                       element = seg.element;
-                       if (element) {
-                               element[0].style.top = rowTops[seg.row] + (seg.top||0) + 'px';
-                               event = seg.event;
-                               trigger('eventAfterRender', event, event, element);
-                       }
-               }
+
+};
+
+;;
+
+var AGENDA_ALL_DAY_EVENT_LIMIT = 5;
+
+// potential nice values for the slot-duration and interval-duration
+// from largest to smallest
+var AGENDA_STOCK_SUB_DURATIONS = [
+       { hours: 1 },
+       { minutes: 30 },
+       { minutes: 15 },
+       { seconds: 30 },
+       { seconds: 15 }
+];
+
+fcViews.agenda = {
+       'class': AgendaView,
+       defaults: {
+               allDaySlot: true,
+               slotDuration: '00:30:00',
+               minTime: '00:00:00',
+               maxTime: '24:00:00',
+               slotEventOverlap: true // a bad name. confused with overlap/constraint system
        }
-       
-       
-       
-       /* Resizing
-       -----------------------------------------------------------------------------------*/
-       
-       
-       function resizableDayEvent(event, element, seg) {
-               var rtl = opt('isRTL');
-               var direction = rtl ? 'w' : 'e';
-               var handle = element.find('div.ui-resizable-' + direction);
-               var isResizing = false;
-               
-               // TODO: look into using jquery-ui mouse widget for this stuff
-               disableTextSelection(element); // prevent native <a> selection for IE
-               element
-                       .mousedown(function(ev) { // prevent native <a> selection for others
-                               ev.preventDefault();
-                       })
-                       .click(function(ev) {
-                               if (isResizing) {
-                                       ev.preventDefault(); // prevent link from being visited (only method that worked in IE6)
-                                       ev.stopImmediatePropagation(); // prevent fullcalendar eventClick handler from being called
-                                                                      // (eventElementHandlers needs to be bound after resizableDayEvent)
-                               }
-                       });
-               
-               handle.mousedown(function(ev) {
-                       if (ev.which != 1) {
-                               return; // needs to be left mouse button
-                       }
-                       isResizing = true;
-                       var hoverListener = t.getHoverListener();
-                       var rowCnt = getRowCnt();
-                       var colCnt = getColCnt();
-                       var dis = rtl ? -1 : 1;
-                       var dit = rtl ? colCnt-1 : 0;
-                       var elementTop = element.css('top');
-                       var dayDelta;
-                       var helpers;
-                       var eventCopy = $.extend({}, event);
-                       var minCell = dateCell(event.start);
-                       clearSelection();
-                       $('body')
-                               .css('cursor', direction + '-resize')
-                               .one('mouseup', mouseup);
-                       trigger('eventResizeStart', this, event, ev);
-                       hoverListener.start(function(cell, origCell) {
-                               if (cell) {
-                                       var r = Math.max(minCell.row, cell.row);
-                                       var c = cell.col;
-                                       if (rowCnt == 1) {
-                                               r = 0; // hack for all-day area in agenda views
-                                       }
-                                       if (r == minCell.row) {
-                                               if (rtl) {
-                                                       c = Math.min(minCell.col, c);
-                                               }else{
-                                                       c = Math.max(minCell.col, c);
-                                               }
-                                       }
-                                       dayDelta = (r*7 + c*dis+dit) - (origCell.row*7 + origCell.col*dis+dit);
-                                       var newEnd = addDays(eventEnd(event), dayDelta, true);
-                                       if (dayDelta) {
-                                               eventCopy.end = newEnd;
-                                               var oldHelpers = helpers;
-                                               helpers = renderTempDaySegs(compileDaySegs([eventCopy]), seg.row, elementTop);
-                                               helpers.find('*').css('cursor', direction + '-resize');
-                                               if (oldHelpers) {
-                                                       oldHelpers.remove();
-                                               }
-                                               hideEvents(event);
-                                       }else{
-                                               if (helpers) {
-                                                       showEvents(event);
-                                                       helpers.remove();
-                                                       helpers = null;
-                                               }
-                                       }
-                                       clearOverlays();
-                                       renderDayOverlay(event.start, addDays(cloneDate(newEnd), 1)); // coordinate grid already rebuild at hoverListener.start
-                               }
-                       }, ev);
-                       
-                       function mouseup(ev) {
-                               trigger('eventResizeStop', this, event, ev);
-                               $('body').css('cursor', '');
-                               hoverListener.stop();
-                               clearOverlays();
-                               if (dayDelta) {
-                                       eventResize(this, event, dayDelta, 0, ev);
-                                       // event redraw will clear helpers
-                               }
-                               // otherwise, the drag handler already restored the old events
-                               
-                               setTimeout(function() { // make this happen after the element's click event
-                                       isResizing = false;
-                               },0);
-                       }
-                       
+};
+
+fcViews.agendaDay = {
+       type: 'agenda',
+       duration: { days: 1 }
+};
+
+fcViews.agendaWeek = {
+       type: 'agenda',
+       duration: { weeks: 1 }
+};
+;;
+
+/*
+Responsible for the scroller, and forwarding event-related actions into the "grid"
+*/
+var ListView = View.extend({
+
+       grid: null,
+       scroller: null,
+
+       initialize: function() {
+               this.grid = new ListViewGrid(this);
+               this.scroller = new Scroller({
+                       overflowX: 'hidden',
+                       overflowY: 'auto'
                });
+       },
+
+       setRange: function(range) {
+               View.prototype.setRange.call(this, range); // super
+
+               this.grid.setRange(range); // needs to process range-related options
+       },
+
+       renderSkeleton: function() {
+               this.el.addClass(
+                       'fc-list-view ' +
+                       this.widgetContentClass
+               );
+
+               this.scroller.render();
+               this.scroller.el.appendTo(this.el);
+
+               this.grid.setElement(this.scroller.scrollEl);
+       },
+
+       unrenderSkeleton: function() {
+               this.scroller.destroy(); // will remove the Grid too
+       },
+
+       setHeight: function(totalHeight, isAuto) {
+               this.scroller.setHeight(this.computeScrollerHeight(totalHeight));
+       },
+
+       computeScrollerHeight: function(totalHeight) {
+               return totalHeight -
+                       subtractInnerElHeight(this.el, this.scroller.el); // everything that's NOT the scroller
+       },
+
+       renderEvents: function(events) {
+               this.grid.renderEvents(events);
+       },
+
+       unrenderEvents: function() {
+               this.grid.unrenderEvents();
+       },
+
+       isEventResizable: function(event) {
+               return false;
+       },
+
+       isEventDraggable: function(event) {
+               return false;
        }
-       
 
-}
+});
 
-//BUG: unselect needs to be triggered when events are dragged+dropped
+/*
+Responsible for event rendering and user-interaction.
+Its "el" is the inner-content of the above view's scroller.
+*/
+var ListViewGrid = Grid.extend({
 
-function SelectionManager() {
-       var t = this;
-       
-       
-       // exports
-       t.select = select;
-       t.unselect = unselect;
-       t.reportSelection = reportSelection;
-       t.daySelectionMousedown = daySelectionMousedown;
-       
-       
-       // imports
-       var opt = t.opt;
-       var trigger = t.trigger;
-       var defaultSelectionEnd = t.defaultSelectionEnd;
-       var renderSelection = t.renderSelection;
-       var clearSelection = t.clearSelection;
-       
-       
-       // locals
-       var selected = false;
+       segSelector: '.fc-list-item', // which elements accept event actions
+       hasDayInteractions: false, // no day selection or day clicking
 
+       // slices by day
+       spanToSegs: function(span) {
+               var view = this.view;
+               var dayStart = view.start.clone().time(0); // timed, so segs get times!
+               var dayIndex = 0;
+               var seg;
+               var segs = [];
 
+               while (dayStart < view.end) {
 
-       // unselectAuto
-       if (opt('selectable') && opt('unselectAuto')) {
-               $(document).mousedown(function(ev) {
-                       var ignore = opt('unselectCancel');
-                       if (ignore) {
-                               if ($(ev.target).parents(ignore).length) { // could be optimized to stop after first match
-                                       return;
-                               }
+                       seg = intersectRanges(span, {
+                               start: dayStart,
+                               end: dayStart.clone().add(1, 'day')
+                       });
+
+                       if (seg) {
+                               seg.dayIndex = dayIndex;
+                               segs.push(seg);
                        }
-                       unselect(ev);
-               });
-       }
-       
 
-       function select(startDate, endDate, allDay) {
-               unselect();
-               if (!endDate) {
-                       endDate = defaultSelectionEnd(startDate, allDay);
-               }
-               renderSelection(startDate, endDate, allDay);
-               reportSelection(startDate, endDate, allDay);
-       }
-       
-       
-       function unselect(ev) {
-               if (selected) {
-                       selected = false;
-                       clearSelection();
-                       trigger('unselect', null, ev);
+                       dayStart.add(1, 'day');
+                       dayIndex++;
+
+                       // detect when span won't go fully into the next day,
+                       // and mutate the latest seg to the be the end.
+                       if (
+                               seg && !seg.isEnd && span.end.hasTime() &&
+                               span.end < dayStart.clone().add(this.view.nextDayThreshold)
+                       ) {
+                               seg.end = span.end.clone();
+                               seg.isEnd = true;
+                               break;
+                       }
                }
-       }
-       
-       
-       function reportSelection(startDate, endDate, allDay, ev) {
-               selected = true;
-               trigger('select', null, startDate, endDate, allDay, ev);
-       }
-       
-       
-       function daySelectionMousedown(ev) { // not really a generic manager method, oh well
-               var cellDate = t.cellDate;
-               var cellIsAllDay = t.cellIsAllDay;
-               var hoverListener = t.getHoverListener();
-               var reportDayClick = t.reportDayClick; // this is hacky and sort of weird
-               if (ev.which == 1 && opt('selectable')) { // which==1 means left mouse button
-                       unselect(ev);
-                       var _mousedownElement = this;
-                       var dates;
-                       hoverListener.start(function(cell, origCell) { // TODO: maybe put cellDate/cellIsAllDay info in cell
-                               clearSelection();
-                               if (cell && cellIsAllDay(cell)) {
-                                       dates = [ cellDate(origCell), cellDate(cell) ].sort(cmp);
-                                       renderSelection(dates[0], dates[1], true);
-                               }else{
-                                       dates = null;
-                               }
-                       }, ev);
-                       $(document).one('mouseup', function(ev) {
-                               hoverListener.stop();
-                               if (dates) {
-                                       if (+dates[0] == +dates[1]) {
-                                               reportDayClick(dates[0], true, ev);
-                                       }
-                                       reportSelection(dates[0], dates[1], true, ev);
-                               }
-                       });
+
+               return segs;
+       },
+
+       // like "4:00am"
+       computeEventTimeFormat: function() {
+               return this.view.opt('mediumTimeFormat');
+       },
+
+       // for events with a url, the whole <tr> should be clickable,
+       // but it's impossible to wrap with an <a> tag. simulate this.
+       handleSegClick: function(seg, ev) {
+               var url;
+
+               Grid.prototype.handleSegClick.apply(this, arguments); // super. might prevent the default action
+
+               // not clicking on or within an <a> with an href
+               if (!$(ev.target).closest('a[href]').length) {
+                       url = seg.event.url;
+                       if (url && !ev.isDefaultPrevented()) { // jsEvent not cancelled in handler
+                               window.location.href = url; // simulate link click
+                       }
                }
-       }
+       },
 
+       // returns list of foreground segs that were actually rendered
+       renderFgSegs: function(segs) {
+               segs = this.renderFgSegEls(segs); // might filter away hidden events
 
-}
-function OverlayManager() {
-       var t = this;
-       
-       
-       // exports
-       t.renderOverlay = renderOverlay;
-       t.clearOverlays = clearOverlays;
-       
-       
-       // locals
-       var usedOverlays = [];
-       var unusedOverlays = [];
-       
-       
-       function renderOverlay(rect, parent) {
-               var e = unusedOverlays.shift();
-               if (!e) {
-                       e = $("<div class='fc-cell-overlay' style='position:absolute;z-index:3'/>");
+               if (!segs.length) {
+                       this.renderEmptyMessage();
                }
-               if (e[0].parentNode != parent[0]) {
-                       e.appendTo(parent);
+               else {
+                       this.renderSegList(segs);
                }
-               usedOverlays.push(e.css(rect).show());
-               return e;
-       }
-       
 
-       function clearOverlays() {
-               var e;
-               while (e = usedOverlays.shift()) {
-                       unusedOverlays.push(e.hide().unbind());
-               }
-       }
+               return segs;
+       },
 
+       renderEmptyMessage: function() {
+               this.el.html(
+                       '<div class="fc-list-empty-wrap2">' + // TODO: try less wraps
+                       '<div class="fc-list-empty-wrap1">' +
+                       '<div class="fc-list-empty">' +
+                               htmlEscape(this.view.opt('noEventsMessage')) +
+                       '</div>' +
+                       '</div>' +
+                       '</div>'
+               );
+       },
 
-}
+       // render the event segments in the view
+       renderSegList: function(allSegs) {
+               var segsByDay = this.groupSegsByDay(allSegs); // sparse array
+               var dayIndex;
+               var daySegs;
+               var i;
+               var tableEl = $('<table class="fc-list-table"><tbody/></table>');
+               var tbodyEl = tableEl.find('tbody');
 
-function CoordinateGrid(buildFunc) {
+               for (dayIndex = 0; dayIndex < segsByDay.length; dayIndex++) {
+                       daySegs = segsByDay[dayIndex];
+                       if (daySegs) { // sparse array, so might be undefined
 
-       var t = this;
-       var rows;
-       var cols;
-       
-       
-       t.build = function() {
-               rows = [];
-               cols = [];
-               buildFunc(rows, cols);
-       };
-       
-       
-       t.cell = function(x, y) {
-               var rowCnt = rows.length;
-               var colCnt = cols.length;
-               var i, r=-1, c=-1;
-               for (i=0; i<rowCnt; i++) {
-                       if (y >= rows[i][0] && y < rows[i][1]) {
-                               r = i;
-                               break;
+                               // append a day header
+                               tbodyEl.append(this.dayHeaderHtml(
+                                       this.view.start.clone().add(dayIndex, 'days')
+                               ));
+
+                               this.sortEventSegs(daySegs);
+
+                               for (i = 0; i < daySegs.length; i++) {
+                                       tbodyEl.append(daySegs[i].el); // append event row
+                               }
                        }
                }
-               for (i=0; i<colCnt; i++) {
-                       if (x >= cols[i][0] && x < cols[i][1]) {
-                               c = i;
-                               break;
-                       }
+
+               this.el.empty().append(tableEl);
+       },
+
+       // Returns a sparse array of arrays, segs grouped by their dayIndex
+       groupSegsByDay: function(segs) {
+               var segsByDay = []; // sparse array
+               var i, seg;
+
+               for (i = 0; i < segs.length; i++) {
+                       seg = segs[i];
+                       (segsByDay[seg.dayIndex] || (segsByDay[seg.dayIndex] = []))
+                               .push(seg);
                }
-               return (r>=0 && c>=0) ? { row:r, col:c } : null;
-       };
-       
-       
-       t.rect = function(row0, col0, row1, col1, originElement) { // row1,col1 is inclusive
-               var origin = originElement.offset();
-               return {
-                       top: rows[row0][0] - origin.top,
-                       left: cols[col0][0] - origin.left,
-                       width: cols[col1][1] - cols[col0][0],
-                       height: rows[row1][1] - rows[row0][0]
-               };
-       };
 
-}
+               return segsByDay;
+       },
 
-function HoverListener(coordinateGrid) {
+       // generates the HTML for the day headers that live amongst the event rows
+       dayHeaderHtml: function(dayDate) {
+               var view = this.view;
+               var mainFormat = view.opt('listDayFormat');
+               var altFormat = view.opt('listDayAltFormat');
+
+               return '<tr class="fc-list-heading" data-date="' + dayDate.format('YYYY-MM-DD') + '">' +
+                       '<td class="' + view.widgetHeaderClass + '" colspan="3">' +
+                               (mainFormat ?
+                                       view.buildGotoAnchorHtml(
+                                               dayDate,
+                                               { 'class': 'fc-list-heading-main' },
+                                               htmlEscape(dayDate.format(mainFormat)) // inner HTML
+                                       ) :
+                                       '') +
+                               (altFormat ?
+                                       view.buildGotoAnchorHtml(
+                                               dayDate,
+                                               { 'class': 'fc-list-heading-alt' },
+                                               htmlEscape(dayDate.format(altFormat)) // inner HTML
+                                       ) :
+                                       '') +
+                       '</td>' +
+               '</tr>';
+       },
 
+       // generates the HTML for a single event row
+       fgSegHtml: function(seg) {
+               var view = this.view;
+               var classes = [ 'fc-list-item' ].concat(this.getSegCustomClasses(seg));
+               var bgColor = this.getSegBackgroundColor(seg);
+               var event = seg.event;
+               var url = event.url;
+               var timeHtml;
 
-       var t = this;
-       var bindType;
-       var change;
-       var firstCell;
-       var cell;
-       
-       
-       t.start = function(_change, ev, _bindType) {
-               change = _change;
-               firstCell = cell = null;
-               coordinateGrid.build();
-               mouse(ev);
-               bindType = _bindType || 'mousemove';
-               $(document).bind(bindType, mouse);
-       };
-       
-       
-       function mouse(ev) {
-               var newCell = coordinateGrid.cell(ev.pageX, ev.pageY);
-               if (!newCell != !cell || newCell && (newCell.row != cell.row || newCell.col != cell.col)) {
-                       if (newCell) {
-                               if (!firstCell) {
-                                       firstCell = newCell;
-                               }
-                               change(newCell, firstCell, newCell.row-firstCell.row, newCell.col-firstCell.col);
-                       }else{
-                               change(newCell, firstCell);
+               if (event.allDay) {
+                       timeHtml = view.getAllDayHtml();
+               }
+               else if (view.isMultiDayEvent(event)) { // if the event appears to span more than one day
+                       if (seg.isStart || seg.isEnd) { // outer segment that probably lasts part of the day
+                               timeHtml = htmlEscape(this.getEventTimeText(seg));
                        }
-                       cell = newCell;
+                       else { // inner segment that lasts the whole day
+                               timeHtml = view.getAllDayHtml();
+                       }
+               }
+               else {
+                       // Display the normal time text for the *event's* times
+                       timeHtml = htmlEscape(this.getEventTimeText(event));
                }
+
+               if (url) {
+                       classes.push('fc-has-url');
+               }
+
+               return '<tr class="' + classes.join(' ') + '">' +
+                       (this.displayEventTime ?
+                               '<td class="fc-list-item-time ' + view.widgetContentClass + '">' +
+                                       (timeHtml || '') +
+                               '</td>' :
+                               '') +
+                       '<td class="fc-list-item-marker ' + view.widgetContentClass + '">' +
+                               '<span class="fc-event-dot"' +
+                               (bgColor ?
+                                       ' style="background-color:' + bgColor + '"' :
+                                       '') +
+                               '></span>' +
+                       '</td>' +
+                       '<td class="fc-list-item-title ' + view.widgetContentClass + '">' +
+                               '<a' + (url ? ' href="' + htmlEscape(url) + '"' : '') + '>' +
+                                       htmlEscape(seg.event.title || '') +
+                               '</a>' +
+                       '</td>' +
+               '</tr>';
        }
-       
-       
-       t.stop = function() {
-               $(document).unbind(bindType, mouse);
-               return cell;
-       };
-       
-       
-}
 
-function HorizontalPositionCache(getElement) {
+});
+
+;;
 
-       var t = this,
-               elements = {},
-               lefts = {},
-               rights = {};
-               
-       function e(i) {
-               return elements[i] = elements[i] || getElement(i);
+fcViews.list = {
+       'class': ListView,
+       buttonTextKey: 'list', // what to lookup in locale files
+       defaults: {
+               buttonText: 'list', // text to display for English
+               listDayFormat: 'LL', // like "January 1, 2016"
+               noEventsMessage: 'No events to display'
        }
-       
-       t.left = function(i) {
-               return lefts[i] = lefts[i] === undefined ? e(i).position().left : lefts[i];
-       };
-       
-       t.right = function(i) {
-               return rights[i] = rights[i] === undefined ? t.left(i) + e(i).width() : rights[i];
-       };
-       
-       t.clear = function() {
-               elements = {};
-               lefts = {};
-               rights = {};
-       };
-       
-}
+};
+
+fcViews.listDay = {
+       type: 'list',
+       duration: { days: 1 },
+       defaults: {
+               listDayFormat: 'dddd' // day-of-week is all we need. full date is probably in header
+       }
+};
+
+fcViews.listWeek = {
+       type: 'list',
+       duration: { weeks: 1 },
+       defaults: {
+               listDayFormat: 'dddd', // day-of-week is more important
+               listDayAltFormat: 'LL'
+       }
+};
+
+fcViews.listMonth = {
+       type: 'list',
+       duration: { month: 1 },
+       defaults: {
+               listDayAltFormat: 'dddd' // day-of-week is nice-to-have
+       }
+};
+
+fcViews.listYear = {
+       type: 'list',
+       duration: { year: 1 },
+       defaults: {
+               listDayAltFormat: 'dddd' // day-of-week is nice-to-have
+       }
+};
+
+;;
 \r
-})(jQuery);
\ No newline at end of file
+return FC; // export for Node/CommonJS\r
+});
\ No newline at end of file