[lhc/web/wiklou.git] / skins / common / wikibits.js

// MediaWiki JavaScript support functions

window.clientPC = navigator.userAgent.toLowerCase(); // Get client info
window.is_gecko = /gecko/.test( clientPC ) &&
        !/khtml|spoofer|netscape\/7\.0/.test(clientPC);

window.is_safari = window.is_safari_win = window.webkit_version =
        window.is_chrome = window.is_chrome_mac = false;
window.webkit_match = clientPC.match(/applewebkit\/(\d+)/);
if (webkit_match) {
        window.is_safari = clientPC.indexOf('applewebkit') != -1 &&
                clientPC.indexOf('spoofer') == -1;
        window.is_safari_win = is_safari && clientPC.indexOf('windows') != -1;
        window.webkit_version = parseInt(webkit_match[1]);
        // Tests for chrome here, to avoid breaking old scripts safari left alone
        // This is here for accesskeys
        window.is_chrome = clientPC.indexOf('chrome') !== -1 &&
                clientPC.indexOf('spoofer') === -1;
        window.is_chrome_mac = is_chrome && clientPC.indexOf('mac') !== -1
}

// For accesskeys; note that FF3+ is included here!
window.is_ff2 = /firefox\/[2-9]|minefield\/3/.test( clientPC );
window.ff2_bugs = /firefox\/2/.test( clientPC );
// These aren't used here, but some custom scripts rely on them
window.is_ff2_win = is_ff2 && clientPC.indexOf('windows') != -1;
window.is_ff2_x11 = is_ff2 && clientPC.indexOf('x11') != -1;

window.is_opera = window.is_opera_preseven = window.is_opera_95 =
        window.opera6_bugs = window.opera7_bugs = window.opera95_bugs = false;
if (clientPC.indexOf('opera') != -1) {
        window.is_opera = true;
        window.is_opera_preseven = window.opera && !document.childNodes;
        window.is_opera_seven = window.opera && document.childNodes;
        window.is_opera_95 = /opera\/(9\.[5-9]|[1-9][0-9])/.test( clientPC );
        window.opera6_bugs = is_opera_preseven;
        window.opera7_bugs = is_opera_seven && !is_opera_95;
        window.opera95_bugs = /opera\/(9\.5)/.test( clientPC );
}
// As recommended by <http://msdn.microsoft.com/en-us/library/ms537509.aspx>,
// avoiding false positives from moronic extensions that append to the IE UA
// string (bug 23171)
window.ie6_bugs = false;
if ( /msie ([0-9]{1,}[\.0-9]{0,})/.exec( clientPC ) != null
&& parseFloat( RegExp.$1 ) <= 6.0 ) {
        ie6_bugs = true;
}

// Global external objects used by this script.
/*extern ta, stylepath, skin */

// add any onload functions in this hook (please don't hard-code any events in the xhtml source)
window.doneOnloadHook = undefined;

if (!window.onloadFuncts) {
        window.onloadFuncts = [];
}

window.addOnloadHook = function( hookFunct ) {
        // Allows add-on scripts to add onload functions
        if( !doneOnloadHook ) {
                onloadFuncts[onloadFuncts.length] = hookFunct;
        } else {
                hookFunct();  // bug in MSIE script loading
        }
}

window.importScript = function( page ) {
        // TODO: might want to introduce a utility function to match wfUrlencode() in PHP
        var uri = wgScript + '?title=' +
                encodeURIComponent(page.replace(/ /g,'_')).replace(/%2F/ig,'/').replace(/%3A/ig,':') +
                '&action=raw&ctype=text/javascript';
        return importScriptURI( uri );
}

window.loadedScripts = {}; // included-scripts tracker
window.importScriptURI = function( url ) {
        if ( loadedScripts[url] ) {
                return null;
        }
        loadedScripts[url] = true;
        var s = document.createElement( 'script' );
        s.setAttribute( 'src', url );
        s.setAttribute( 'type', 'text/javascript' );
        document.getElementsByTagName('head')[0].appendChild( s );
        return s;
}

window.importStylesheet = function( page ) {
        return importStylesheetURI( wgScript + '?action=raw&ctype=text/css&title=' + encodeURIComponent( page.replace(/ /g,'_') ) );
}

window.importStylesheetURI = function( url, media ) {
        var l = document.createElement( 'link' );
        l.type = 'text/css';
        l.rel = 'stylesheet';
        l.href = url;
        if( media ) {
                l.media = media;
        }
        document.getElementsByTagName('head')[0].appendChild( l );
        return l;
}

window.appendCSS = function( text ) {
        var s = document.createElement( 'style' );
        s.type = 'text/css';
        s.rel = 'stylesheet';
        if ( s.styleSheet ) {
                s.styleSheet.cssText = text; // IE
        } else {
                s.appendChild( document.createTextNode( text + '' ) ); // Safari sometimes borks on null
        }
        document.getElementsByTagName('head')[0].appendChild( s );
        return s;
}

// Special stylesheet links for Monobook only (see bug 14717)
if ( typeof stylepath != 'undefined' && skin == 'monobook' ) {
        if ( opera6_bugs ) {
                importStylesheetURI( stylepath + '/' + skin + '/Opera6Fixes.css' );
        } else if ( opera7_bugs ) {
                importStylesheetURI( stylepath + '/' + skin + '/Opera7Fixes.css' );
        } else if ( opera95_bugs ) {
                importStylesheetURI( stylepath + '/' + skin + '/Opera9Fixes.css' );
        } else if ( ff2_bugs ) {
                importStylesheetURI( stylepath + '/' + skin + '/FF2Fixes.css' );
        }
}


if ( 'wgBreakFrames' in window && window.wgBreakFrames ) {
        // Un-trap us from framesets
        if ( window.top != window ) {
                window.top.location = window.location;
        }
}

window.showTocToggle = function() {
        if ( document.createTextNode ) {
                // Uses DOM calls to avoid document.write + XHTML issues

                var linkHolder = document.getElementById( 'toctitle' );
                var existingLink = document.getElementById( 'togglelink' );
                if ( !linkHolder || existingLink ) {
                        // Don't add the toggle link twice
                        return;
                }

                var outerSpan = document.createElement( 'span' );
                outerSpan.className = 'toctoggle';

                var toggleLink = document.createElement( 'a' );
                toggleLink.id = 'togglelink';
                toggleLink.className = 'internal';
                toggleLink.href = '#';
                addClickHandler( toggleLink, function( evt ) { toggleToc(); return killEvt( evt ); } );
                
                toggleLink.appendChild( document.createTextNode( mediaWiki.msg.get( 'hidetoc' ) ) );

                outerSpan.appendChild( document.createTextNode( '[' ) );
                outerSpan.appendChild( toggleLink );
                outerSpan.appendChild( document.createTextNode( ']' ) );

                linkHolder.appendChild( document.createTextNode( ' ' ) );
                linkHolder.appendChild( outerSpan );

                var cookiePos = document.cookie.indexOf( "hidetoc=" );
                if ( cookiePos > -1 && document.cookie.charAt( cookiePos + 8 ) == 1 ) {
                        toggleToc();
                }
        }
}

window.changeText = function( el, newText ) {
        // Safari work around
        if ( el.innerText ) {
                el.innerText = newText;
        } else if ( el.firstChild && el.firstChild.nodeValue ) {
                el.firstChild.nodeValue = newText;
        }
}

window.killEvt = function( evt ) {
        evt = evt || window.event || window.Event; // W3C, IE, Netscape
        if ( typeof ( evt.preventDefault ) != 'undefined' ) {
                evt.preventDefault(); // Don't follow the link
                evt.stopPropagation();
        } else {
                evt.cancelBubble = true; // IE
        }
        return false; // Don't follow the link (IE)
}

window.toggleToc = function() {
        var tocmain = document.getElementById( 'toc' );
        var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
        var toggleLink = document.getElementById( 'togglelink' );

        if ( toc && toggleLink && toc.style.display == 'none' ) {
                changeText( toggleLink, mediaWiki.msg.get( 'hidetoc' ) );
                toc.style.display = 'block';
                document.cookie = "hidetoc=0";
                tocmain.className = 'toc';
        } else {
                changeText( toggleLink, mediaWiki.msg.get( 'showtoc' ) );
                toc.style.display = 'none';
                document.cookie = "hidetoc=1";
                tocmain.className = 'toc tochidden';
        }
        return false;
}

window.mwEditButtons = [];
window.mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js

window.escapeQuotes = function( text ) {
        var re = new RegExp( "'", "g" );
        text = text.replace( re, "\\'" );
        re = new RegExp( "\\n", "g" );
        text = text.replace( re, "\\n" );
        return escapeQuotesHTML( text );
}

window.escapeQuotesHTML = function( text ) {
        var re = new RegExp( '&', "g" );
        text = text.replace( re, "&amp;" );
        re = new RegExp( '"', "g" );
        text = text.replace( re, "&quot;" );
        re = new RegExp( '<', "g" );
        text = text.replace( re, "&lt;" );
        re = new RegExp( '>', "g" );
        text = text.replace( re, "&gt;" );
        return text;
}

/**
 * Set the accesskey prefix based on browser detection.
 */
window.tooltipAccessKeyPrefix = 'alt-';
if ( is_opera ) {
        tooltipAccessKeyPrefix = 'shift-esc-';
} else if ( is_chrome ) {
        tooltipAccessKeyPrefix = is_chrome_mac ? 'ctrl-option-' : 'alt-';
} else if ( !is_safari_win && is_safari && webkit_version > 526 ) {
        tooltipAccessKeyPrefix = 'ctrl-alt-';
} else if ( !is_safari_win && ( is_safari
                || clientPC.indexOf('mac') != -1
                || clientPC.indexOf('konqueror') != -1 ) ) {
        tooltipAccessKeyPrefix = 'ctrl-';
} else if ( is_ff2 ) {
        tooltipAccessKeyPrefix = 'alt-shift-';
}
window.tooltipAccessKeyRegexp = /\[(ctrl-)?(alt-)?(shift-)?(esc-)?(.)\]$/;

/**
 * Add the appropriate prefix to the accesskey shown in the tooltip.
 * If the nodeList parameter is given, only those nodes are updated;
 * otherwise, all the nodes that will probably have accesskeys by
 * default are updated.
 *
 * @param Array nodeList -- list of elements to update
 */
window.updateTooltipAccessKeys = function( nodeList ) {
        if ( !nodeList ) {
                // Rather than scan all links on the whole page, we can just scan these
                // containers which contain the relevant links. This is really just an
                // optimization technique.
                var linkContainers = [
                        'column-one', // Monobook and Modern
                        'mw-head', 'mw-panel', 'p-logo' // Vector
                ];
                for ( var i in linkContainers ) {
                        var linkContainer = document.getElementById( linkContainers[i] );
                        if ( linkContainer ) {
                                updateTooltipAccessKeys( linkContainer.getElementsByTagName( 'a' ) );
                        }
                }
                // these are rare enough that no such optimization is needed
                updateTooltipAccessKeys( document.getElementsByTagName( 'input' ) );
                updateTooltipAccessKeys( document.getElementsByTagName( 'label' ) );
                return;
        }

        for ( var i = 0; i < nodeList.length; i++ ) {
                var element = nodeList[i];
                var tip = element.getAttribute( 'title' );
                if ( tip && tooltipAccessKeyRegexp.exec( tip ) ) {
                        tip = tip.replace(tooltipAccessKeyRegexp,
                                          '[' + tooltipAccessKeyPrefix + "$5]");
                        element.setAttribute( 'title', tip );
                }
        }
}

/**
 * Add a link to one of the portlet menus on the page, including:
 *
 * p-cactions: Content actions (shown as tabs above the main content in Monobook)
 * p-personal: Personal tools (shown at the top right of the page in Monobook)
 * p-navigation: Navigation
 * p-tb: Toolbox
 *
 * This function exists for the convenience of custom JS authors.  All
 * but the first three parameters are optional, though providing at
 * least an id and a tooltip is recommended.
 *
 * By default the new link will be added to the end of the list.  To
 * add the link before a given existing item, pass the DOM node of
 * that item (easily obtained with document.getElementById()) as the
 * nextnode parameter; to add the link _after_ an existing item, pass
 * the node's nextSibling instead.
 *
 * @param String portlet -- id of the target portlet ("p-cactions", "p-personal", "p-navigation" or "p-tb")
 * @param String href -- link URL
 * @param String text -- link text (will be automatically lowercased by CSS for p-cactions in Monobook)
 * @param String id -- id of the new item, should be unique and preferably have the appropriate prefix ("ca-", "pt-", "n-" or "t-")
 * @param String tooltip -- text to show when hovering over the link, without accesskey suffix
 * @param String accesskey -- accesskey to activate this link (one character, try to avoid conflicts)
 * @param Node nextnode -- the DOM node before which the new item should be added, should be another item in the same list
 *
 * @return Node -- the DOM node of the new item (an LI element) or null
 */
window.addPortletLink = function( portlet, href, text, id, tooltip, accesskey, nextnode ) {
        var root = document.getElementById( portlet );
        if ( !root ) {
                return null;
        }
        var uls = root.getElementsByTagName( 'ul' );
        var node;
        if ( uls.length > 0 ) {
                node = uls[0];
        } else {
                node = document.createElement( 'ul' );
                var lastElementChild = null;
                for ( var i = 0; i < root.childNodes.length; ++i ) { /* get root.lastElementChild */
                        if ( root.childNodes[i].nodeType == 1 ) {
                                lastElementChild = root.childNodes[i];
                        }
                }
                if ( lastElementChild && lastElementChild.nodeName.match( /div/i ) ) {
                        /* Insert into the menu divs */
                        lastElementChild.appendChild( node );
                } else {
                        root.appendChild( node );
                }
        }
        if ( !node ) {
                return null;
        }

        // unhide portlet if it was hidden before
        root.className = root.className.replace( /(^| )emptyPortlet( |$)/, "$2" );

        var span = document.createElement( 'span' );
        span.appendChild( document.createTextNode( text ) );

        var link = document.createElement( 'a' );
        link.appendChild( span );
        link.href = href;

        var item = document.createElement( 'li' );
        item.appendChild( link );
        if ( id ) {
                item.id = id;
        }

        if ( accesskey ) {
                link.setAttribute( 'accesskey', accesskey );
                tooltip += ' [' + accesskey + ']';
        }
        if ( tooltip ) {
                link.setAttribute( 'title', tooltip );
        }
        if ( accesskey && tooltip ) {
                updateTooltipAccessKeys( new Array( link ) );
        }

        if ( nextnode && nextnode.parentNode == node ) {
                node.insertBefore( item, nextnode );
        } else {
                node.appendChild( item );  // IE compatibility (?)
        }

        return item;
}

window.getInnerText = function( el ) {
        if ( el.getAttribute( 'data-sort-value' ) !== null ) {
                return el.getAttribute( 'data-sort-value' );
        }
        
        if ( typeof el == 'string' ) {
                return el;
        }
        if ( typeof el == 'undefined' ) {
                return el;
        }
        if ( el.textContent ) {
                return el.textContent; // not needed but it is faster
        }
        if ( el.innerText ) {
                return el.innerText; // IE doesn't have textContent
        }
        var str = '';

        var cs = el.childNodes;
        var l = cs.length;
        for ( var i = 0; i < l; i++ ) {
                switch ( cs[i].nodeType ) {
                        case 1: // ELEMENT_NODE
                                str += ts_getInnerText( cs[i] );
                                break;
                        case 3: // TEXT_NODE
                                str += cs[i].nodeValue;
                                break;
                }
        }
        return str;
}

/* Dummy for deprecated function */
window.ta = [];
window.akeytt = function( doId ) {
}

window.checkboxes = undefined;
window.lastCheckbox = undefined;

window.setupCheckboxShiftClick = function() {
        checkboxes = [];
        lastCheckbox = null;
        var inputs = document.getElementsByTagName( 'input' );
        addCheckboxClickHandlers( inputs );
}

window.addCheckboxClickHandlers = function( inputs, start ) {
        if ( !start ) {
                start = 0;
        }

        var finish = start + 250;
        if ( finish > inputs.length ) {
                finish = inputs.length;
        }

        for ( var i = start; i < finish; i++ ) {
                var cb = inputs[i];
                if ( !cb.type || cb.type.toLowerCase() != 'checkbox' || ( ' ' + cb.className + ' ' ).indexOf( ' noshiftselect ' )  != -1 ) {
                        continue;
                }
                var end = checkboxes.length;
                checkboxes[end] = cb;
                cb.index = end;
                addClickHandler( cb, checkboxClickHandler );
        }

        if ( finish < inputs.length ) {
                setTimeout( function() {
                        addCheckboxClickHandlers( inputs, finish );
                }, 200 );
        }
}

window.checkboxClickHandler = function( e ) {
        if ( typeof e == 'undefined' ) {
                e = window.event;
        }
        if ( !e.shiftKey || lastCheckbox === null ) {
                lastCheckbox = this.index;
                return true;
        }
        var endState = this.checked;
        var start, finish;
        if ( this.index < lastCheckbox ) {
                start = this.index + 1;
                finish = lastCheckbox;
        } else {
                start = lastCheckbox;
                finish = this.index - 1;
        }
        for ( var i = start; i <= finish; ++i ) {
                checkboxes[i].checked = endState;
                if( i > start && typeof checkboxes[i].onchange == 'function' ) {
                        checkboxes[i].onchange(); // fire triggers
                }
        }
        lastCheckbox = this.index;
        return true;
}


/*
        Written by Jonathan Snook, http://www.snook.ca/jonathan
        Add-ons by Robert Nyman, http://www.robertnyman.com
        Author says "The credit comment is all it takes, no license. Go crazy with it!:-)"
        From http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
*/
window.getElementsByClassName = function( oElm, strTagName, oClassNames ) {
        var arrReturnElements = new Array();
        if ( typeof( oElm.getElementsByClassName ) == 'function' ) {
                /* Use a native implementation where possible FF3, Saf3.2, Opera 9.5 */
                var arrNativeReturn = oElm.getElementsByClassName( oClassNames );
                if ( strTagName == '*' ) {
                        return arrNativeReturn;
                }
                for ( var h = 0; h < arrNativeReturn.length; h++ ) {
                        if( arrNativeReturn[h].tagName.toLowerCase() == strTagName.toLowerCase() ) {
                                arrReturnElements[arrReturnElements.length] = arrNativeReturn[h];
                        }
                }
                return arrReturnElements;
        }
        var arrElements = ( strTagName == '*' && oElm.all ) ? oElm.all : oElm.getElementsByTagName( strTagName );
        var arrRegExpClassNames = new Array();
        if( typeof oClassNames == 'object' ) {
                for( var i = 0; i < oClassNames.length; i++ ) {
                        arrRegExpClassNames[arrRegExpClassNames.length] =
                                new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)");
                }
        } else {
                arrRegExpClassNames[arrRegExpClassNames.length] =
                        new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)");
        }
        var oElement;
        var bMatchesAll;
        for( var j = 0; j < arrElements.length; j++ ) {
                oElement = arrElements[j];
                bMatchesAll = true;
                for( var k = 0; k < arrRegExpClassNames.length; k++ ) {
                        if( !arrRegExpClassNames[k].test( oElement.className ) ) {
                                bMatchesAll = false;
                                break;
                        }
                }
                if( bMatchesAll ) {
                        arrReturnElements[arrReturnElements.length] = oElement;
                }
        }
        return ( arrReturnElements );
}

window.redirectToFragment = function( fragment ) {
        var match = navigator.userAgent.match(/AppleWebKit\/(\d+)/);
        if ( match ) {
                var webKitVersion = parseInt( match[1] );
                if ( webKitVersion < 420 ) {
                        // Released Safari w/ WebKit 418.9.1 messes up horribly
                        // Nightlies of 420+ are ok
                        return;
                }
        }
        if ( window.location.hash == '' ) {
                window.location.hash = fragment;

                // Mozilla needs to wait until after load, otherwise the window doesn't
                // scroll.  See <https://bugzilla.mozilla.org/show_bug.cgi?id=516293>.
                // There's no obvious way to detect this programmatically, so we use
                // version-testing.  If Firefox fixes the bug, they'll jump twice, but
                // better twice than not at all, so make the fix hit future versions as
                // well.
                if ( is_gecko ) {
                        addOnloadHook(function() {
                                if ( window.location.hash == fragment ) {
                                        window.location.hash = fragment;
                                }
                        });
                }
        }
}

/*
 * Table sorting script based on one (c) 1997-2006 Stuart Langridge and Joost
 * de Valk:
 * http://www.joostdevalk.nl/code/sortable-table/
 * http://www.kryogenix.org/code/browser/sorttable/
 *
 * @todo don't break on colspans/rowspans (bug 8028)
 * @todo language-specific digit grouping/decimals (bug 8063)
 * @todo support all accepted date formats (bug 8226)
 */

window.ts_image_path = stylepath + '/common/images/';
window.ts_image_up = 'sort_up.gif';
window.ts_image_down = 'sort_down.gif';
window.ts_image_none = 'sort_none.gif';
window.ts_europeandate = wgContentLanguage != 'en'; // The non-American-inclined can change to "true"
window.ts_alternate_row_colors = false;
window.ts_number_transform_table = null;
window.ts_number_regex = null;

window.sortables_init = function() {
        var idnum = 0;
        // Find all tables with class sortable and make them sortable
        var tables = getElementsByClassName( document, 'table', 'sortable' );
        for ( var ti = 0; ti < tables.length ; ti++ ) {
                if ( !tables[ti].id ) {
                        tables[ti].setAttribute( 'id', 'sortable_table_id_' + idnum );
                        ++idnum;
                }
                ts_makeSortable( tables[ti] );
        }
}

window.ts_makeSortable = function( table ) {
        var firstRow;
        if ( table.rows && table.rows.length > 0 ) {
                if ( table.tHead && table.tHead.rows.length > 0 ) {
                        firstRow = table.tHead.rows[table.tHead.rows.length-1];
                } else {
                        firstRow = table.rows[0];
                }
        }
        if ( !firstRow ) {
                return;
        }

        // We have a first row: assume it's the header, and make its contents clickable links
        for ( var i = 0; i < firstRow.cells.length; i++ ) {
                var cell = firstRow.cells[i];
                if ( (' ' + cell.className + ' ').indexOf(' unsortable ') == -1 ) {
                        cell.innerHTML += '<a href="#" class="sortheader" '
                                + 'onclick="ts_resortTable(this);return false;">'
                                + '<span class="sortarrow">'
                                + '<img src="'
                                + ts_image_path
                                + ts_image_none
                                + '" alt="&darr;"/></span></a>';
                }
        }
        if ( ts_alternate_row_colors ) {
                ts_alternate( table );
        }
}

window.ts_getInnerText = function( el ) {
        return getInnerText( el );
}

window.ts_resortTable = function( lnk ) {
        // get the span
        var span = lnk.getElementsByTagName('span')[0];

        var td = lnk.parentNode;
        var tr = td.parentNode;
        var column = td.cellIndex;

        var table = tr.parentNode;
        while ( table && !( table.tagName && table.tagName.toLowerCase() == 'table' ) ) {
                table = table.parentNode;
        }
        if ( !table ) {
                return;
        }

        if ( table.rows.length <= 1 ) {
                return;
        }

        // Generate the number transform table if it's not done already
        if ( ts_number_transform_table === null ) {
                ts_initTransformTable();
        }

        // Work out a type for the column
        // Skip the first row if that's where the headings are
        var rowStart = ( table.tHead && table.tHead.rows.length > 0 ? 0 : 1 );
        var bodyRows = 0;
        if (rowStart == 0 && table.tBodies) {
                for (var i=0; i < table.tBodies.length; i++ ) {
                        bodyRows += table.tBodies[i].rows.length;
                }
                if (bodyRows < table.rows.length)
                        rowStart = 1;
        }
        
        var itm = '';
        for ( var i = rowStart; i < table.rows.length; i++ ) {
                if ( table.rows[i].cells.length > column ) {
                        itm = ts_getInnerText(table.rows[i].cells[column]);
                        itm = itm.replace(/^[\s\xa0]+/, '').replace(/[\s\xa0]+$/, '');
                        if ( itm != '' ) {
                                break;
                        }
                }
        }

        // TODO: bug 8226, localised date formats
        var sortfn = ts_sort_generic;
        var preprocessor = ts_toLowerCase;
        if ( /^\d\d[\/. -][a-zA-Z]{3}[\/. -]\d\d\d\d$/.test( itm ) ) {
                preprocessor = ts_dateToSortKey;
        } else if ( /^\d\d[\/.-]\d\d[\/.-]\d\d\d\d$/.test( itm ) ) {
                preprocessor = ts_dateToSortKey;
        } else if ( /^\d\d[\/.-]\d\d[\/.-]\d\d$/.test( itm ) ) {
                preprocessor = ts_dateToSortKey;
                // (minus sign)([pound dollar euro yen currency]|cents)
        } else if ( /(^([-\u2212] *)?[\u00a3$\u20ac\u00a4\u00a5]|\u00a2$)/.test( itm ) ) {
                preprocessor = ts_currencyToSortKey;
        } else if ( ts_number_regex.test( itm ) ) {
                preprocessor = ts_parseFloat;
        }

        var reverse = ( span.getAttribute( 'sortdir' ) == 'down' );

        var newRows = new Array();
        var staticRows = new Array();
        for ( var j = rowStart; j < table.rows.length; j++ ) {
                var row = table.rows[j];
                if( (' ' + row.className + ' ').indexOf(' unsortable ') < 0 ) {
                        var keyText = ts_getInnerText( row.cells[column] );
                        if( keyText === undefined ) {
                                keyText = ''; 
                        }
                        var oldIndex = ( reverse ? -j : j );
                        var preprocessed = preprocessor( keyText.replace(/^[\s\xa0]+/, '').replace(/[\s\xa0]+$/, '') );

                        newRows[newRows.length] = new Array( row, preprocessed, oldIndex );
                } else {
                        staticRows[staticRows.length] = new Array( row, false, j-rowStart );
                }
        }

        newRows.sort( sortfn );

        var arrowHTML;
        if ( reverse ) {
                arrowHTML = '<img src="' + ts_image_path + ts_image_down + '" alt="&darr;"/>';
                newRows.reverse();
                span.setAttribute( 'sortdir', 'up' );
        } else {
                arrowHTML = '<img src="' + ts_image_path + ts_image_up + '" alt="&uarr;"/>';
                span.setAttribute( 'sortdir', 'down' );
        }

        for ( var i = 0; i < staticRows.length; i++ ) {
                var row = staticRows[i];
                newRows.splice( row[2], 0, row );
        }

        // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
        // don't do sortbottom rows
        for ( var i = 0; i < newRows.length; i++ ) {
                if ( ( ' ' + newRows[i][0].className + ' ').indexOf(' sortbottom ') == -1 ) {
                        table.tBodies[0].appendChild( newRows[i][0] );
                }
        }
        // do sortbottom rows only
        for ( var i = 0; i < newRows.length; i++ ) {
                if ( ( ' ' + newRows[i][0].className + ' ').indexOf(' sortbottom ') != -1 ) {
                        table.tBodies[0].appendChild( newRows[i][0] );
                }
        }

        // Delete any other arrows there may be showing
        var spans = getElementsByClassName( tr, 'span', 'sortarrow' );
        for ( var i = 0; i < spans.length; i++ ) {
                spans[i].innerHTML = '<img src="' + ts_image_path + ts_image_none + '" alt="&darr;"/>';
        }
        span.innerHTML = arrowHTML;

        if ( ts_alternate_row_colors ) {
                ts_alternate( table );
        }
}

window.ts_initTransformTable = function() {
        if ( typeof wgSeparatorTransformTable == 'undefined'
                        || ( wgSeparatorTransformTable[0] == '' && wgDigitTransformTable[2] == '' ) )
        {
                var digitClass = "[0-9,.]";
                ts_number_transform_table = false;
        } else {
                ts_number_transform_table = {};
                // Unpack the transform table
                // Separators
                var ascii = wgSeparatorTransformTable[0].split("\t");
                var localised = wgSeparatorTransformTable[1].split("\t");
                for ( var i = 0; i < ascii.length; i++ ) {
                        ts_number_transform_table[localised[i]] = ascii[i];
                }
                // Digits
                ascii = wgDigitTransformTable[0].split("\t");
                localised = wgDigitTransformTable[1].split("\t");
                for ( var i = 0; i < ascii.length; i++ ) {
                        ts_number_transform_table[localised[i]] = ascii[i];
                }

                // Construct regex for number identification
                var digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ',', '\\.'];
                var maxDigitLength = 1;
                for ( var digit in ts_number_transform_table ) {
                        // Escape regex metacharacters
                        digits.push(
                                digit.replace( /[\\\\$\*\+\?\.\(\)\|\{\}\[\]\-]/,
                                        function( s ) { return '\\' + s; } )
                        );
                        if ( digit.length > maxDigitLength ) {
                                maxDigitLength = digit.length;
                        }
                }
                if ( maxDigitLength > 1 ) {
                        var digitClass = '[' + digits.join( '', digits ) + ']';
                } else {
                        var digitClass = '(' + digits.join( '|', digits ) + ')';
                }
        }

        // We allow a trailing percent sign, which we just strip.  This works fine
        // if percents and regular numbers aren't being mixed.
        ts_number_regex = new RegExp(
                "^(" +
                        "[-+\u2212]?[0-9][0-9,]*(\\.[0-9,]*)?(E[-+\u2212]?[0-9][0-9,]*)?" + // Fortran-style scientific
                        "|" +
                        "[-+\u2212]?" + digitClass + "+%?" + // Generic localised
                ")$", "i"
        );
}

window.ts_toLowerCase = function( s ) {
        return s.toLowerCase();
}

window.ts_dateToSortKey = function( date ) {
        // y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
        if ( date.length == 11 ) {
                switch ( date.substr( 3, 3 ).toLowerCase() ) {
                        case 'jan':
                                var month = '01';
                                break;
                        case 'feb':
                                var month = '02';
                                break;
                        case 'mar':
                                var month = '03';
                                break;
                        case 'apr':
                                var month = '04';
                                break;
                        case 'may':
                                var month = '05';
                                break;
                        case 'jun':
                                var month = '06';
                                break;
                        case 'jul':
                                var month = '07';
                                break;
                        case 'aug':
                                var month = '08';
                                break;
                        case 'sep':
                                var month = '09';
                                break;
                        case 'oct':
                                var month = '10';
                                break;
                        case 'nov':
                                var month = '11';
                                break;
                        case 'dec':
                                var month = '12';
                                break;
                        // default: var month = '00';
                }
                return date.substr( 7, 4 ) + month + date.substr( 0, 2 );
        } else if ( date.length == 10 ) {
                if ( ts_europeandate == false ) {
                        return date.substr( 6, 4 ) + date.substr( 0, 2 ) + date.substr( 3, 2 );
                } else {
                        return date.substr( 6, 4 ) + date.substr( 3, 2 ) + date.substr( 0, 2 );
                }
        } else if ( date.length == 8 ) {
                var yr = date.substr( 6, 2 );
                if ( parseInt( yr ) < 50 ) {
                        yr = '20' + yr;
                } else {
                        yr = '19' + yr;
                }
                if ( ts_europeandate == true ) {
                        return yr + date.substr( 3, 2 ) + date.substr( 0, 2 );
                } else {
                        return yr + date.substr( 0, 2 ) + date.substr( 3, 2 );
                }
        }
        return '00000000';
}

window.ts_parseFloat = function( s ) {
        if ( !s ) {
                return 0;
        }
        if ( ts_number_transform_table != false ) {
                var newNum = '', c;

                for ( var p = 0; p < s.length; p++ ) {
                        c = s.charAt( p );
                        if ( c in ts_number_transform_table ) {
                                newNum += ts_number_transform_table[c];
                        } else {
                                newNum += c;
                        }
                }
                s = newNum;
        }
        var num = parseFloat( s.replace(/[, ]/g, '').replace("\u2212", '-') );
        return ( isNaN( num ) ? -Infinity : num );
}

window.ts_currencyToSortKey = function( s ) {
        return ts_parseFloat(s.replace(/[^-\u22120-9.,]/g,''));
}

window.ts_sort_generic = function( a, b ) {
        return a[1] < b[1] ? -1 : a[1] > b[1] ? 1 : a[2] - b[2];
}

window.ts_alternate = function( table ) {
        // Take object table and get all it's tbodies.
        var tableBodies = table.getElementsByTagName( 'tbody' );
        // Loop through these tbodies
        for ( var i = 0; i < tableBodies.length; i++ ) {
                // Take the tbody, and get all it's rows
                var tableRows = tableBodies[i].getElementsByTagName( 'tr' );
                // Loop through these rows
                // Start at 1 because we want to leave the heading row untouched
                for ( var j = 0; j < tableRows.length; j++ ) {
                        // Check if j is even, and apply classes for both possible results
                        var oldClasses = tableRows[j].className.split(' ');
                        var newClassName = '';
                        for ( var k = 0; k < oldClasses.length; k++ ) {
                                if ( oldClasses[k] != '' && oldClasses[k] != 'even' && oldClasses[k] != 'odd' ) {
                                        newClassName += oldClasses[k] + ' ';
                                }
                        }
                        tableRows[j].className = newClassName + ( j % 2 == 0 ? 'even' : 'odd' );
                }
        }
}

/*
 * End of table sorting code
 */


/**
 * Add a cute little box at the top of the screen to inform the user of
 * something, replacing any preexisting message.
 *
 * @param String -or- Dom Object message HTML to be put inside the right div
 * @param String className   Used in adding a class; should be different for each
 *   call to allow CSS/JS to hide different boxes.  null = no class used.
 * @return Boolean       True on success, false on failure
 */
window.jsMsg = function( message, className ) {
        if ( !document.getElementById ) {
                return false;
        }
        // We special-case skin structures provided by the software.  Skins that
        // choose to abandon or significantly modify our formatting can just define
        // an mw-js-message div to start with.
        var messageDiv = document.getElementById( 'mw-js-message' );
        if ( !messageDiv ) {
                messageDiv = document.createElement( 'div' );
                if ( document.getElementById( 'column-content' )
                && document.getElementById( 'content' ) ) {
                        // MonoBook, presumably
                        document.getElementById( 'content' ).insertBefore(
                                messageDiv,
                                document.getElementById( 'content' ).firstChild
                        );
                } else if ( document.getElementById( 'content' )
                && document.getElementById( 'article' ) ) {
                        // Non-Monobook but still recognizable (old-style)
                        document.getElementById( 'article').insertBefore(
                                messageDiv,
                                document.getElementById( 'article' ).firstChild
                        );
                } else {
                        return false;
                }
        }

        messageDiv.setAttribute( 'id', 'mw-js-message' );
        messageDiv.style.display = 'block';
        if( className ) {
                messageDiv.setAttribute( 'class', 'mw-js-message-' + className );
        }

        if ( typeof message === 'object' ) {
                while ( messageDiv.hasChildNodes() ) { // Remove old content
                        messageDiv.removeChild( messageDiv.firstChild );
                }
                messageDiv.appendChild( message ); // Append new content
        } else {
                messageDiv.innerHTML = message;
        }
        return true;
}

/**
 * Inject a cute little progress spinner after the specified element
 *
 * @param element Element to inject after
 * @param id Identifier string (for use with removeSpinner(), below)
 */
window.injectSpinner = function( element, id ) {
        var spinner = document.createElement( 'img' );
        spinner.id = 'mw-spinner-' + id;
        spinner.src = stylepath + '/common/images/spinner.gif';
        spinner.alt = spinner.title = '...';
        if( element.nextSibling ) {
                element.parentNode.insertBefore( spinner, element.nextSibling );
        } else {
                element.parentNode.appendChild( spinner );
        }
}

/**
 * Remove a progress spinner added with injectSpinner()
 *
 * @param id Identifier string
 */
window.removeSpinner = function( id ) {
        var spinner = document.getElementById( 'mw-spinner-' + id );
        if( spinner ) {
                spinner.parentNode.removeChild( spinner );
        }
}

window.runOnloadHook = function() {
        // don't run anything below this for non-dom browsers
        if ( doneOnloadHook || !( document.getElementById && document.getElementsByTagName ) ) {
                return;
        }

        // set this before running any hooks, since any errors below
        // might cause the function to terminate prematurely
        doneOnloadHook = true;

        updateTooltipAccessKeys( null );
        setupCheckboxShiftClick();
        sortables_init();

        // Run any added-on functions
        for ( var i = 0; i < onloadFuncts.length; i++ ) {
                onloadFuncts[i]();
        }
}

/**
 * Add an event handler to an element
 *
 * @param Element element Element to add handler to
 * @param String attach Event to attach to
 * @param callable handler Event handler callback
 */
window.addHandler = function( element, attach, handler ) {
        if( element.addEventListener ) {
                element.addEventListener( attach, handler, false );
        } else if( element.attachEvent ) {
                element.attachEvent( 'on' + attach, handler );
        }
}

window.hookEvent = function( hookName, hookFunct ) {
        addHandler( window, hookName, hookFunct );
}

/**
 * Add a click event handler to an element
 *
 * @param Element element Element to add handler to
 * @param callable handler Event handler callback
 */
window.addClickHandler = function( element, handler ) {
        addHandler( element, 'click', handler );
}

/**
 * Removes an event handler from an element
 *
 * @param Element element Element to remove handler from
 * @param String remove Event to remove
 * @param callable handler Event handler callback to remove
 */
window.removeHandler = function( element, remove, handler ) {
        if( window.removeEventListener ) {
                element.removeEventListener( remove, handler, false );
        } else if( window.detachEvent ) {
                element.detachEvent( 'on' + remove, handler );
        }
}
// note: all skins should call runOnloadHook() at the end of html output,
//      so the below should be redundant. It's there just in case.
hookEvent( 'load', runOnloadHook );

if ( ie6_bugs ) {
        importScriptURI( stylepath + '/common/IEFixes.js' );
}

showTocToggle();