skins/common/wikibits.js

   1 // MediaWiki JavaScript support functions
   2
   3 var clientPC = navigator.userAgent.toLowerCase(); // Get client info
   4 var is_gecko = ((clientPC.indexOf('gecko')!=-1) && (clientPC.indexOf('spoofer')==-1)
   5                 && (clientPC.indexOf('khtml') == -1) && (clientPC.indexOf('netscape/7.0')==-1));
   6 var is_safari = ((clientPC.indexOf('applewebkit')!=-1) && (clientPC.indexOf('spoofer')==-1));
   7 var is_khtml = (navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ));
   8 // For accesskeys
   9 var is_ff2_win = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1) && clientPC.indexOf('windows')!=-1;
  10 var is_ff2_x11 = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1) && clientPC.indexOf('x11')!=-1;
  11 if (clientPC.indexOf('opera') != -1) {
  12         var is_opera = true;
  13         var is_opera_preseven = (window.opera && !document.childNodes);
  14         var is_opera_seven = (window.opera && document.childNodes);
  15         var is_opera_95 = (clientPC.search(/opera\/(9.[5-9]|[1-9][0-9])/)!=-1);
  16 }
  17
  18 // Global external objects used by this script.
  19 /*extern ta, stylepath, skin */
  20
  21 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  22 var doneOnloadHook;
  23
  24 if (!window.onloadFuncts) {
  25         var onloadFuncts = [];
  26 }
  27
  28 function addOnloadHook(hookFunct) {
  29         // Allows add-on scripts to add onload functions
  30         onloadFuncts[onloadFuncts.length] = hookFunct;
  31 }
  32
  33 function hookEvent(hookName, hookFunct) {
  34         if (window.addEventListener) {
  35                 window.addEventListener(hookName, hookFunct, false);
  36         } else if (window.attachEvent) {
  37                 window.attachEvent("on" + hookName, hookFunct);
  38         }
  39 }
  40
  41 // document.write special stylesheet links
  42 if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  43         if (is_opera_preseven) {
  44                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  45         } else if (is_opera_seven && !is_opera_95) {
  46                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  47         } else if (is_khtml) {
  48                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  49         }
  50 }
  51
  52 if (wgBreakFrames) {
  53         // Un-trap us from framesets
  54         if (window.top != window) {
  55                 window.top.location = window.location;
  56         }
  57 }
  58
  59 // for enhanced RecentChanges
  60 function toggleVisibility(_levelId, _otherId, _linkId) {
  61         var thisLevel = document.getElementById(_levelId);
  62         var otherLevel = document.getElementById(_otherId);
  63         var linkLevel = document.getElementById(_linkId);
  64         if (thisLevel.style.display == 'none') {
  65                 thisLevel.style.display = 'block';
  66                 otherLevel.style.display = 'none';
  67                 linkLevel.style.display = 'inline';
  68         } else {
  69                 thisLevel.style.display = 'none';
  70                 otherLevel.style.display = 'inline';
  71                 linkLevel.style.display = 'none';
  72         }
  73 }
  74
  75 function historyRadios(parent) {
  76         var inputs = parent.getElementsByTagName('input');
  77         var radios = [];
  78         for (var i = 0; i < inputs.length; i++) {
  79                 if (inputs[i].name == "diff" || inputs[i].name == "oldid") {
  80                         radios[radios.length] = inputs[i];
  81                 }
  82         }
  83         return radios;
  84 }
  85
  86 // check selection and tweak visibility/class onclick
  87 function diffcheck() {
  88         var dli = false; // the li where the diff radio is checked
  89         var oli = false; // the li where the oldid radio is checked
  90         var hf = document.getElementById('pagehistory');
  91         if (!hf) {
  92                 return true;
  93         }
  94         var lis = hf.getElementsByTagName('li');
  95         for (var i=0;i<lis.length;i++) {
  96                 var inputs = historyRadios(lis[i]);
  97                 if (inputs[1] && inputs[0]) {
  98                         if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
  99                                 if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) {
 100                                         return false;
 101                                 }
 102                                 if (oli) { // it's the second checked radio
 103                                         if (inputs[1].checked) {
 104                                                 oli.className = "selected";
 105                                                 return false;
 106                                         }
 107                                 } else if (inputs[0].checked) {
 108                                         return false;
 109                                 }
 110                                 if (inputs[0].checked) {
 111                                         dli = lis[i];
 112                                 }
 113                                 if (!oli) {
 114                                         inputs[0].style.visibility = 'hidden';
 115                                 }
 116                                 if (dli) {
 117                                         inputs[1].style.visibility = 'hidden';
 118                                 }
 119                                 lis[i].className = "selected";
 120                                 oli = lis[i];
 121                         }  else { // no radio is checked in this row
 122                                 if (!oli) {
 123                                         inputs[0].style.visibility = 'hidden';
 124                                 } else {
 125                                         inputs[0].style.visibility = 'visible';
 126                                 }
 127                                 if (dli) {
 128                                         inputs[1].style.visibility = 'hidden';
 129                                 } else {
 130                                         inputs[1].style.visibility = 'visible';
 131                                 }
 132                                 lis[i].className = "";
 133                         }
 134                 }
 135         }
 136         return true;
 137 }
 138
 139 // page history stuff
 140 // attach event handlers to the input elements on history page
 141 function histrowinit() {
 142         var hf = document.getElementById('pagehistory');
 143         if (!hf) {
 144                 return;
 145         }
 146         var lis = hf.getElementsByTagName('li');
 147         for (var i = 0; i < lis.length; i++) {
 148                 var inputs = historyRadios(lis[i]);
 149                 if (inputs[0] && inputs[1]) {
 150                         inputs[0].onclick = diffcheck;
 151                         inputs[1].onclick = diffcheck;
 152                 }
 153         }
 154         diffcheck();
 155 }
 156
 157 // generate toc from prefs form, fold sections
 158 // XXX: needs testing on IE/Mac and safari
 159 // more comments to follow
 160 function tabbedprefs() {
 161         var prefform = document.getElementById('preferences');
 162         if (!prefform || !document.createElement) {
 163                 return;
 164         }
 165         if (prefform.nodeName.toLowerCase() == 'a') {
 166                 return; // Occasional IE problem
 167         }
 168         prefform.className = prefform.className + 'jsprefs';
 169         var sections = [];
 170         var children = prefform.childNodes;
 171         var seci = 0;
 172         for (var i = 0; i < children.length; i++) {
 173                 if (children[i].nodeName.toLowerCase() == 'fieldset') {
 174                         children[i].id = 'prefsection-' + seci;
 175                         children[i].className = 'prefsection';
 176                         if (is_opera || is_khtml) {
 177                                 children[i].className = 'prefsection operaprefsection';
 178                         }
 179                         var legends = children[i].getElementsByTagName('legend');
 180                         sections[seci] = {};
 181                         legends[0].className = 'mainLegend';
 182                         if (legends[0] && legends[0].firstChild.nodeValue) {
 183                                 sections[seci].text = legends[0].firstChild.nodeValue;
 184                         } else {
 185                                 sections[seci].text = '# ' + seci;
 186                         }
 187                         sections[seci].secid = children[i].id;
 188                         seci++;
 189                         if (sections.length != 1) {
 190                                 children[i].style.display = 'none';
 191                         } else {
 192                                 var selectedid = children[i].id;
 193                         }
 194                 }
 195         }
 196         var toc = document.createElement('ul');
 197         toc.id = 'preftoc';
 198         toc.selectedid = selectedid;
 199         for (i = 0; i < sections.length; i++) {
 200                 var li = document.createElement('li');
 201                 if (i === 0) {
 202                         li.className = 'selected';
 203                 }
 204                 var a = document.createElement('a');
 205                 a.href = '#' + sections[i].secid;
 206                 a.onmousedown = a.onclick = uncoversection;
 207                 a.appendChild(document.createTextNode(sections[i].text));
 208                 a.secid = sections[i].secid;
 209                 li.appendChild(a);
 210                 toc.appendChild(li);
 211         }
 212         prefform.parentNode.insertBefore(toc, prefform.parentNode.childNodes[0]);
 213         document.getElementById('prefsubmit').id = 'prefcontrol';
 214 }
 215
 216 function uncoversection() {
 217         var oldsecid = this.parentNode.parentNode.selectedid;
 218         var newsec = document.getElementById(this.secid);
 219         if (oldsecid != this.secid) {
 220                 var ul = document.getElementById('preftoc');
 221                 document.getElementById(oldsecid).style.display = 'none';
 222                 newsec.style.display = 'block';
 223                 ul.selectedid = this.secid;
 224                 var lis = ul.getElementsByTagName('li');
 225                 for (var i = 0; i< lis.length; i++) {
 226                         lis[i].className = '';
 227                 }
 228                 this.parentNode.className = 'selected';
 229         }
 230         return false;
 231 }
 232
 233 // Timezone stuff
 234 // tz in format [+-]HHMM
 235 function checkTimezone(tz, msg) {
 236         var localclock = new Date();
 237         // returns negative offset from GMT in minutes
 238         var tzRaw = localclock.getTimezoneOffset();
 239         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 240         var tzMin = Math.abs(tzRaw) % 60;
 241         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
 242         if (tz != tzString) {
 243                 var junk = msg.split('$1');
 244                 document.write(junk[0] + "UTC" + tzString + junk[1]);
 245         }
 246 }
 247
 248 function unhidetzbutton() {
 249         var tzb = document.getElementById('guesstimezonebutton');
 250         if (tzb) {
 251                 tzb.style.display = 'inline';
 252         }
 253 }
 254
 255 // in [-]HH:MM format...
 256 // won't yet work with non-even tzs
 257 function fetchTimezone() {
 258         // FIXME: work around Safari bug
 259         var localclock = new Date();
 260         // returns negative offset from GMT in minutes
 261         var tzRaw = localclock.getTimezoneOffset();
 262         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 263         var tzMin = Math.abs(tzRaw) % 60;
 264         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 265                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 266         return tzString;
 267 }
 268
 269 function guessTimezone(box) {
 270         document.getElementsByName("wpHourDiff")[0].value = fetchTimezone();
 271 }
 272
 273 function showTocToggle() {
 274         if (document.createTextNode) {
 275                 // Uses DOM calls to avoid document.write + XHTML issues
 276
 277                 var linkHolder = document.getElementById('toctitle');
 278                 if (!linkHolder) {
 279                         return;
 280                 }
 281
 282                 var outerSpan = document.createElement('span');
 283                 outerSpan.className = 'toctoggle';
 284
 285                 var toggleLink = document.createElement('a');
 286                 toggleLink.id = 'togglelink';
 287                 toggleLink.className = 'internal';
 288                 toggleLink.href = 'javascript:toggleToc()';
 289                 toggleLink.appendChild(document.createTextNode(tocHideText));
 290
 291                 outerSpan.appendChild(document.createTextNode('['));
 292                 outerSpan.appendChild(toggleLink);
 293                 outerSpan.appendChild(document.createTextNode(']'));
 294
 295                 linkHolder.appendChild(document.createTextNode(' '));
 296                 linkHolder.appendChild(outerSpan);
 297
 298                 var cookiePos = document.cookie.indexOf("hidetoc=");
 299                 if (cookiePos > -1 && document.cookie.charAt(cookiePos + 8) == 1) {
 300                         toggleToc();
 301                 }
 302         }
 303 }
 304
 305 function changeText(el, newText) {
 306         // Safari work around
 307         if (el.innerText) {
 308                 el.innerText = newText;
 309         } else if (el.firstChild && el.firstChild.nodeValue) {
 310                 el.firstChild.nodeValue = newText;
 311         }
 312 }
 313
 314 function toggleToc() {
 315         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 316         var toggleLink = document.getElementById('togglelink');
 317
 318         if (toc && toggleLink && toc.style.display == 'none') {
 319                 changeText(toggleLink, tocHideText);
 320                 toc.style.display = 'block';
 321                 document.cookie = "hidetoc=0";
 322         } else {
 323                 changeText(toggleLink, tocShowText);
 324                 toc.style.display = 'none';
 325                 document.cookie = "hidetoc=1";
 326         }
 327 }
 328
 329 var mwEditButtons = [];
 330 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 331
 332 // this function generates the actual toolbar buttons with localized text
 333 // we use it to avoid creating the toolbar where javascript is not enabled
 334 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText, imageId) {
 335         // Don't generate buttons for browsers which don't fully
 336         // support it.
 337         mwEditButtons[mwEditButtons.length] =
 338                 {"imageId": imageId,
 339                  "imageFile": imageFile,
 340                  "speedTip": speedTip,
 341                  "tagOpen": tagOpen,
 342                  "tagClose": tagClose,
 343                  "sampleText": sampleText};
 344 }
 345
 346 // this function generates the actual toolbar buttons with localized text
 347 // we use it to avoid creating the toolbar where javascript is not enabled
 348 function mwInsertEditButton(parent, item) {
 349         var image = document.createElement("img");
 350         image.width = 23;
 351         image.height = 22;
 352         image.className = "mw-toolbar-editbutton";
 353         if (item.imageId) image.id = item.imageId;
 354         image.src = item.imageFile;
 355         image.border = 0;
 356         image.alt = item.speedTip;
 357         image.title = item.speedTip;
 358         image.style.cursor = "pointer";
 359         image.onclick = function() {
 360                 insertTags(item.tagOpen, item.tagClose, item.sampleText);
 361                 return false;
 362         };
 363
 364         parent.appendChild(image);
 365         return true;
 366 }
 367
 368 function mwSetupToolbar() {
 369         var toolbar = document.getElementById('toolbar');
 370         if (!toolbar) { return false; }
 371
 372         var textbox = document.getElementById('wpTextbox1');
 373         if (!textbox) { return false; }
 374
 375         // Don't generate buttons for browsers which don't fully
 376         // support it.
 377         if (!(document.selection && document.selection.createRange)
 378                 && textbox.selectionStart === null) {
 379                 return false;
 380         }
 381
 382         for (var i = 0; i < mwEditButtons.length; i++) {
 383                 mwInsertEditButton(toolbar, mwEditButtons[i]);
 384         }
 385         for (var i = 0; i < mwCustomEditButtons.length; i++) {
 386                 mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
 387         }
 388         return true;
 389 }
 390
 391 function escapeQuotes(text) {
 392         var re = new RegExp("'","g");
 393         text = text.replace(re,"\\'");
 394         re = new RegExp("\\n","g");
 395         text = text.replace(re,"\\n");
 396         return escapeQuotesHTML(text);
 397 }
 398
 399 function escapeQuotesHTML(text) {
 400         var re = new RegExp('&',"g");
 401         text = text.replace(re,"&amp;");
 402         re = new RegExp('"',"g");
 403         text = text.replace(re,"&quot;");
 404         re = new RegExp('<',"g");
 405         text = text.replace(re,"&lt;");
 406         re = new RegExp('>',"g");
 407         text = text.replace(re,"&gt;");
 408         return text;
 409 }
 410
 411 // apply tagOpen/tagClose to selection in textarea,
 412 // use sampleText instead of selection if there is none
 413 function insertTags(tagOpen, tagClose, sampleText) {
 414         var txtarea;
 415         if (document.editform) {
 416                 txtarea = document.editform.wpTextbox1;
 417         } else {
 418                 // some alternate form? take the first one we can find
 419                 var areas = document.getElementsByTagName('textarea');
 420                 txtarea = areas[0];
 421         }
 422         var selText, isSample = false;
 423
 424         if (document.selection  && document.selection.createRange) { // IE/Opera
 425
 426                 //save window scroll position
 427                 if (document.documentElement && document.documentElement.scrollTop)
 428                         var winScroll = document.documentElement.scrollTop
 429                 else if (document.body)
 430                         var winScroll = document.body.scrollTop;
 431                 //get current selection
 432                 txtarea.focus();
 433                 var range = document.selection.createRange();
 434                 selText = range.text;
 435                 //insert tags
 436                 checkSelectedText();
 437                 range.text = tagOpen + selText + tagClose;
 438                 //mark sample text as selected
 439                 if (isSample && range.moveStart) {
 440                         if (window.opera)
 441                                 tagClose = tagClose.replace(/\n/g,'');
 442                         range.moveStart('character', - tagClose.length - selText.length);
 443                         range.moveEnd('character', - tagClose.length);
 444                 }
 445                 range.select();
 446                 //restore window scroll position
 447                 if (document.documentElement && document.documentElement.scrollTop)
 448                         document.documentElement.scrollTop = winScroll
 449                 else if (document.body)
 450                         document.body.scrollTop = winScroll;
 451
 452         } else if (txtarea.selectionStart || txtarea.selectionStart == '0') { // Mozilla
 453
 454                 //save textarea scroll position
 455                 var textScroll = txtarea.scrollTop;
 456                 //get current selection
 457                 txtarea.focus();
 458                 var startPos = txtarea.selectionStart;
 459                 var endPos = txtarea.selectionEnd;
 460                 selText = txtarea.value.substring(startPos, endPos);
 461                 //insert tags
 462                 checkSelectedText();
 463                 txtarea.value = txtarea.value.substring(0, startPos)
 464                         + tagOpen + selText + tagClose
 465                         + txtarea.value.substring(endPos, txtarea.value.length);
 466                 //set new selection
 467                 if (isSample) {
 468                         txtarea.selectionStart = startPos + tagOpen.length;
 469                         txtarea.selectionEnd = startPos + tagOpen.length + selText.length;
 470                 } else {
 471                         txtarea.selectionStart = startPos + tagOpen.length + selText.length + tagClose.length;
 472                         txtarea.selectionEnd = txtarea.selectionStart;
 473                 }
 474                 //restore textarea scroll position
 475                 txtarea.scrollTop = textScroll;
 476         }
 477
 478         function checkSelectedText(){
 479                 if (!selText) {
 480                         selText = sampleText;
 481                         isSample = true;
 482                 } else if (selText.charAt(selText.length - 1) == ' ') { //exclude ending space char
 483                         selText = selText.substring(0, selText.length - 1);
 484                         tagClose += ' '
 485                 }
 486         }
 487
 488 }
 489
 490
 491 /**
 492  * Set the accesskey prefix based on browser detection.
 493  */
 494 var tooltipAccessKeyPrefix = 'alt-';
 495 if (is_opera) {
 496         tooltipAccessKeyPrefix = 'shift-esc-';
 497 } else if (is_safari
 498            || navigator.userAgent.toLowerCase().indexOf('mac') != -1
 499            || navigator.userAgent.toLowerCase().indexOf('konqueror') != -1 ) {
 500         tooltipAccessKeyPrefix = 'ctrl-';
 501 } else if (is_ff2_x11 || is_ff2_win) {
 502         tooltipAccessKeyPrefix = 'alt-shift-';
 503 }
 504 var tooltipAccessKeyRegexp = /\[(ctrl-)?(alt-)?(shift-)?(esc-)?.\]$/;
 505
 506 /**
 507  * Add the appropriate prefix to the accesskey shown in the tooltip.
 508  * If the nodeList parameter is given, only those nodes are updated;
 509  * otherwise, all the nodes that will probably have accesskeys by
 510  * default are updated.
 511  *
 512  * @param Array nodeList -- list of elements to update
 513  */
 514 function updateTooltipAccessKeys( nodeList ) {
 515         if ( !nodeList ) {
 516                 // skins without a "column-one" element don't seem to have links with accesskeys either
 517                 var columnOne = document.getElementById("column-one");
 518                 if ( columnOne )
 519                         updateTooltipAccessKeys( columnOne.getElementsByTagName("a") );
 520                 // these are rare enough that no such optimization is needed
 521                 updateTooltipAccessKeys( document.getElementsByTagName("input") );
 522                 updateTooltipAccessKeys( document.getElementsByTagName("label") );
 523                 return;
 524         }
 525
 526         for ( var i = 0; i < nodeList.length; i++ ) {
 527                 var element = nodeList[i];
 528                 var tip = element.getAttribute("title");
 529                 var key = element.getAttribute("accesskey");
 530                 if ( key && tooltipAccessKeyRegexp.exec(tip) ) {
 531                         tip = tip.replace(tooltipAccessKeyRegexp,
 532                                           "["+tooltipAccessKeyPrefix+key+"]");
 533                         element.setAttribute("title", tip );
 534                 }
 535         }
 536 }
 537
 538 /**
 539  * Add a link to one of the portlet menus on the page, including:
 540  *
 541  * p-cactions: Content actions (shown as tabs above the main content in Monobook)
 542  * p-personal: Personal tools (shown at the top right of the page in Monobook)
 543  * p-navigation: Navigation
 544  * p-tb: Toolbox
 545  *
 546  * This function exists for the convenience of custom JS authors.  All
 547  * but the first three parameters are optional, though providing at
 548  * least an id and a tooltip is recommended.
 549  *
 550  * By default the new link will be added to the end of the list.  To
 551  * add the link before a given existing item, pass the DOM node of
 552  * that item (easily obtained with document.getElementById()) as the
 553  * nextnode parameter; to add the link _after_ an existing item, pass
 554  * the node's nextSibling instead.
 555  *
 556  * @param String portlet -- id of the target portlet ("p-cactions", "p-personal", "p-navigation" or "p-tb")
 557  * @param String href -- link URL
 558  * @param String text -- link text (will be automatically lowercased by CSS for p-cactions in Monobook)
 559  * @param String id -- id of the new item, should be unique and preferably have the appropriate prefix ("ca-", "pt-", "n-" or "t-")
 560  * @param String tooltip -- text to show when hovering over the link, without accesskey suffix
 561  * @param String accesskey -- accesskey to activate this link (one character, try to avoid conflicts)
 562  * @param Node nextnode -- the DOM node before which the new item should be added, should be another item in the same list
 563  *
 564  * @return Node -- the DOM node of the new item (an LI element) or null
 565  */
 566 function addPortletLink(portlet, href, text, id, tooltip, accesskey, nextnode) {
 567         var node = document.getElementById(portlet);
 568         if ( !node ) return null;
 569         node = node.getElementsByTagName( "ul" )[0];
 570         if ( !node ) return null;
 571
 572         var link = document.createElement( "a" );
 573         link.appendChild( document.createTextNode( text ) );
 574         link.href = href;
 575
 576         var item = document.createElement( "li" );
 577         item.appendChild( link );
 578         if ( id ) item.id = id;
 579
 580         if ( accesskey ) {
 581                 link.setAttribute( "accesskey", accesskey );
 582                 tooltip += " ["+accesskey+"]";
 583         }
 584         if ( tooltip ) {
 585                 link.setAttribute( "title", tooltip );
 586         }
 587         if ( accesskey && tooltip ) {
 588                 updateTooltipAccessKeys( new Array( link ) );
 589         }
 590
 591         if ( nextnode && nextnode.parentNode == node )
 592                 node.insertBefore( item, nextnode );
 593         else
 594                 node.appendChild( item );  // IE compatibility (?)
 595
 596         return item;
 597 }
 598
 599
 600 /**
 601  * Set up accesskeys/tooltips from the deprecated ta array.  If doId
 602  * is specified, only set up for that id.  Note that this function is
 603  * deprecated and will not be supported indefinitely -- use
 604  * updateTooltipAccessKey() instead.
 605  *
 606  * @param mixed doId string or null
 607  */
 608 function akeytt( doId ) {
 609         // A lot of user scripts (and some of the code below) break if
 610         // ta isn't defined, so we make sure it is.  Explictly using
 611         // window.ta avoids a "ta is not defined" error.
 612         if (!window.ta) window.ta = new Array;
 613
 614         // Make a local, possibly restricted, copy to avoid clobbering
 615         // the original.
 616         var ta;
 617         if ( doId ) {
 618                 ta = [doId];
 619         } else {
 620                 ta = window.ta;
 621         }
 622
 623         // Now deal with evil deprecated ta
 624         var watchCheckboxExists = document.getElementById( 'wpWatchthis' ) ? true : false;
 625         for (var id in ta) {
 626                 var n = document.getElementById(id);
 627                 if (n) {
 628                         var a = null;
 629                         var ak = '';
 630                         // Are we putting accesskey in it
 631                         if (ta[id][0].length > 0) {
 632                                 // Is this object a object? If not assume it's the next child.
 633
 634                                 if (n.nodeName.toLowerCase() == "a") {
 635                                         a = n;
 636                                 } else {
 637                                         a = n.childNodes[0];
 638                                 }
 639                                 // Don't add an accesskey for the watch tab if the watch
 640                                 // checkbox is also available.
 641                                 if (a && ((id != 'ca-watch' && id != 'ca-unwatch') || !watchCheckboxExists)) {
 642                                         a.accessKey = ta[id][0];
 643                                         ak = ' ['+tooltipAccessKeyPrefix+ta[id][0]+']';
 644                                 }
 645                         } else {
 646                                 // We don't care what type the object is when assigning tooltip
 647                                 a = n;
 648                                 ak = '';
 649                         }
 650
 651                         if (a) {
 652                                 a.title = ta[id][1]+ak;
 653                         }
 654                 }
 655         }
 656 }
 657
 658 function setupRightClickEdit() {
 659         if (document.getElementsByTagName) {
 660                 var spans = document.getElementsByTagName('span');
 661                 for (var i = 0; i < spans.length; i++) {
 662                         var el = spans[i];
 663                         if(el.className == 'editsection') {
 664                                 addRightClickEditHandler(el);
 665                         }
 666                 }
 667         }
 668 }
 669
 670 function addRightClickEditHandler(el) {
 671         for (var i = 0; i < el.childNodes.length; i++) {
 672                 var link = el.childNodes[i];
 673                 if (link.nodeType == 1 && link.nodeName.toLowerCase() == 'a') {
 674                         var editHref = link.getAttribute('href');
 675                         // find the enclosing (parent) header
 676                         var prev = el.parentNode;
 677                         if (prev && prev.nodeType == 1 &&
 678                         prev.nodeName.match(/^[Hh][1-6]$/)) {
 679                                 prev.oncontextmenu = function(e) {
 680                                         if (!e) { e = window.event; }
 681                                         // e is now the event in all browsers
 682                                         var targ;
 683                                         if (e.target) { targ = e.target; }
 684                                         else if (e.srcElement) { targ = e.srcElement; }
 685                                         if (targ.nodeType == 3) { // defeat Safari bug
 686                                                 targ = targ.parentNode;
 687                                         }
 688                                         // targ is now the target element
 689
 690                                         // We don't want to deprive the noble reader of a context menu
 691                                         // for the section edit link, do we?  (Might want to extend this
 692                                         // to all <a>'s?)
 693                                         if (targ.nodeName.toLowerCase() != 'a'
 694                                         || targ.parentNode.className != 'editsection') {
 695                                                 document.location = editHref;
 696                                                 return false;
 697                                         }
 698                                         return true;
 699                                 };
 700                         }
 701                 }
 702         }
 703 }
 704
 705 var checkboxes;
 706 var lastCheckbox;
 707
 708 function setupCheckboxShiftClick() {
 709         checkboxes = [];
 710         lastCheckbox = null;
 711         var inputs = document.getElementsByTagName('input');
 712         addCheckboxClickHandlers(inputs);
 713 }
 714
 715 function addCheckboxClickHandlers(inputs, start) {
 716         if ( !start) start = 0;
 717
 718         var finish = start + 250;
 719         if ( finish > inputs.length )
 720                 finish = inputs.length;
 721
 722         for ( var i = start; i < finish; i++ ) {
 723                 var cb = inputs[i];
 724                 if ( !cb.type || cb.type.toLowerCase() != 'checkbox' )
 725                         continue;
 726                 var end = checkboxes.length;
 727                 checkboxes[end] = cb;
 728                 cb.index = end;
 729                 cb.onclick = checkboxClickHandler;
 730         }
 731
 732         if ( finish < inputs.length ) {
 733                 setTimeout( function () {
 734                         addCheckboxClickHandlers(inputs, finish);
 735                 }, 200 );
 736         }
 737 }
 738
 739 function checkboxClickHandler(e) {
 740         if (typeof e == 'undefined') {
 741                 e = window.event;
 742         }
 743         if ( !e.shiftKey || lastCheckbox === null ) {
 744                 lastCheckbox = this.index;
 745                 return true;
 746         }
 747         var endState = this.checked;
 748         var start, finish;
 749         if ( this.index < lastCheckbox ) {
 750                 start = this.index + 1;
 751                 finish = lastCheckbox;
 752         } else {
 753                 start = lastCheckbox;
 754                 finish = this.index - 1;
 755         }
 756         for (var i = start; i <= finish; ++i ) {
 757                 checkboxes[i].checked = endState;
 758         }
 759         lastCheckbox = this.index;
 760         return true;
 761 }
 762
 763 function toggle_element_activation(ida,idb) {
 764         if (!document.getElementById) {
 765                 return;
 766         }
 767         document.getElementById(ida).disabled=true;
 768         document.getElementById(idb).disabled=false;
 769 }
 770
 771 function toggle_element_check(ida,idb) {
 772         if (!document.getElementById) {
 773                 return;
 774         }
 775         document.getElementById(ida).checked=true;
 776         document.getElementById(idb).checked=false;
 777 }
 778
 779 /**
 780  * Restore the edit box scroll state following a preview operation,
 781  * and set up a form submission handler to remember this state
 782  */
 783 function scrollEditBox() {
 784         var editBox = document.getElementById( 'wpTextbox1' );
 785         var scrollTop = document.getElementById( 'wpScrolltop' );
 786         var editForm = document.getElementById( 'editform' );
 787         if( editBox && scrollTop ) {
 788                 if( scrollTop.value )
 789                         editBox.scrollTop = scrollTop.value;
 790                 addHandler( editForm, 'submit', function() {
 791                         document.getElementById( 'wpScrolltop' ).value = document.getElementById( 'wpTextbox1' ).scrollTop;
 792                 } );
 793         }
 794 }
 795 hookEvent( 'load', scrollEditBox );
 796
 797 var allmessages_nodelist = false;
 798 var allmessages_modified = false;
 799 var allmessages_timeout = false;
 800 var allmessages_running = false;
 801
 802 function allmessagesmodified() {
 803         allmessages_modified = !allmessages_modified;
 804         allmessagesfilter();
 805 }
 806
 807 function allmessagesfilter() {
 808         if ( allmessages_timeout )
 809                 window.clearTimeout( allmessages_timeout );
 810
 811         if ( !allmessages_running )
 812                 allmessages_timeout = window.setTimeout( 'allmessagesfilter_do();', 500 );
 813 }
 814
 815 function allmessagesfilter_do() {
 816         if ( !allmessages_nodelist )
 817                 return;
 818
 819         var text = document.getElementById('allmessagesinput').value;
 820         var nodef = allmessages_modified;
 821
 822         allmessages_running = true;
 823
 824         for ( var name in allmessages_nodelist ) {
 825                 var nodes = allmessages_nodelist[name];
 826                 var display = ( name.indexOf( text ) == -1 ? 'none' : '' );
 827
 828                 for ( var i = 0; i < nodes.length; i++)
 829                         nodes[i].style.display =
 830                                 ( nodes[i].className == "def" && nodef
 831                                   ? 'none' : display );
 832         }
 833
 834         if ( text != document.getElementById('allmessagesinput').value ||
 835              nodef != allmessages_modified )
 836                 allmessagesfilter_do();  // repeat
 837
 838         allmessages_running = false;
 839 }
 840
 841 function allmessagesfilter_init() {
 842         if ( allmessages_nodelist )
 843                 return;
 844
 845         var nodelist = new Array();
 846         var templist = new Array();
 847
 848         var table = document.getElementById('allmessagestable');
 849         if ( !table ) return;
 850
 851         var rows = document.getElementsByTagName('tr');
 852         for ( var i = 0; i < rows.length; i++ ) {
 853                 var id = rows[i].getAttribute('id')
 854                 if ( id && id.substring(0,16) != 'sp-allmessages-r' ) continue;
 855                 templist[ id ] = rows[i];
 856         }
 857
 858         var spans = table.getElementsByTagName('span');
 859         for ( var i = 0; i < spans.length; i++ ) {
 860                 var id = spans[i].getAttribute('id')
 861                 if ( id && id.substring(0,17) != 'sp-allmessages-i-' ) continue;
 862                 if ( !spans[i].firstChild || spans[i].firstChild.nodeType != 3 ) continue;
 863
 864                 var nodes = new Array();
 865                 var row1 = templist[ id.replace('i', 'r1') ];
 866                 var row2 = templist[ id.replace('i', 'r2') ];
 867
 868                 if ( row1 ) nodes[nodes.length] = row1;
 869                 if ( row2 ) nodes[nodes.length] = row2;
 870                 nodelist[ spans[i].firstChild.nodeValue ] = nodes;
 871         }
 872
 873         var k = document.getElementById('allmessagesfilter');
 874         if (k) { k.style.display = ''; }
 875
 876         allmessages_nodelist = nodelist;
 877 }
 878
 879 hookEvent( "load", allmessagesfilter_init );
 880
 881 /*
 882         Written by Jonathan Snook, http://www.snook.ca/jonathan
 883         Add-ons by Robert Nyman, http://www.robertnyman.com
 884         Author says "The credit comment is all it takes, no license. Go crazy with it!:-)"
 885         From http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
 886 */
 887 function getElementsByClassName(oElm, strTagName, oClassNames){
 888         var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
 889         var arrReturnElements = new Array();
 890         var arrRegExpClassNames = new Array();
 891         if(typeof oClassNames == "object"){
 892                 for(var i=0; i<oClassNames.length; i++){
 893                         arrRegExpClassNames[arrRegExpClassNames.length] =
 894                                 new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)");
 895                 }
 896         }
 897         else{
 898                 arrRegExpClassNames[arrRegExpClassNames.length] =
 899                         new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)");
 900         }
 901         var oElement;
 902         var bMatchesAll;
 903         for(var j=0; j<arrElements.length; j++){
 904                 oElement = arrElements[j];
 905                 bMatchesAll = true;
 906                 for(var k=0; k<arrRegExpClassNames.length; k++){
 907                         if(!arrRegExpClassNames[k].test(oElement.className)){
 908                                 bMatchesAll = false;
 909                                 break;
 910                         }
 911                 }
 912                 if(bMatchesAll){
 913                         arrReturnElements[arrReturnElements.length] = oElement;
 914                 }
 915         }
 916         return (arrReturnElements)
 917 }
 918
 919 function redirectToFragment(fragment) {
 920         var match = navigator.userAgent.match(/AppleWebKit\/(\d+)/);
 921         if (match) {
 922                 var webKitVersion = parseInt(match[1]);
 923                 if (webKitVersion < 420) {
 924                         // Released Safari w/ WebKit 418.9.1 messes up horribly
 925                         // Nightlies of 420+ are ok
 926                         return;
 927                 }
 928         }
 929         if (is_gecko) {
 930                 // Mozilla needs to wait until after load, otherwise the window doesn't scroll
 931                 addOnloadHook(function () {
 932                         if (window.location.hash == "")
 933                                 window.location.hash = fragment;
 934                 });
 935         } else {
 936                 if (window.location.hash == "")
 937                         window.location.hash = fragment;
 938         }
 939 }
 940
 941 /*
 942  * Table sorting script  by Joost de Valk, check it out at http://www.joostdevalk.nl/code/sortable-table/.
 943  * Based on a script from http://www.kryogenix.org/code/browser/sorttable/.
 944  * Distributed under the MIT license: http://www.kryogenix.org/code/browser/licence.html .
 945  *
 946  * Copyright (c) 1997-2006 Stuart Langridge, Joost de Valk.
 947  *
 948  * @todo don't break on colspans/rowspans (bug 8028)
 949  * @todo language-specific digit grouping/decimals (bug 8063)
 950  * @todo support all accepted date formats (bug 8226)
 951  */
 952
 953 var ts_image_path = stylepath+"/common/images/";
 954 var ts_image_up = "sort_up.gif";
 955 var ts_image_down = "sort_down.gif";
 956 var ts_image_none = "sort_none.gif";
 957 var ts_europeandate = wgContentLanguage != "en"; // The non-American-inclined can change to "true"
 958 var ts_alternate_row_colors = true;
 959 var SORT_COLUMN_INDEX;
 960
 961 function sortables_init() {
 962         var idnum = 0;
 963         // Find all tables with class sortable and make them sortable
 964         var tables = getElementsByClassName(document, "table", "sortable");
 965         for (var ti = 0; ti < tables.length ; ti++) {
 966                 if (!tables[ti].id) {
 967                         tables[ti].setAttribute('id','sortable_table_id_'+idnum);
 968                         ++idnum;
 969                 }
 970                 ts_makeSortable(tables[ti]);
 971         }
 972 }
 973
 974 function ts_makeSortable(table) {
 975         var firstRow;
 976         if (table.rows && table.rows.length > 0) {
 977                 if (table.tHead && table.tHead.rows.length > 0) {
 978                         firstRow = table.tHead.rows[table.tHead.rows.length-1];
 979                 } else {
 980                         firstRow = table.rows[0];
 981                 }
 982         }
 983         if (!firstRow) return;
 984
 985         // We have a first row: assume it's the header, and make its contents clickable links
 986         for (var i = 0; i < firstRow.cells.length; i++) {
 987                 var cell = firstRow.cells[i];
 988                 if ((" "+cell.className+" ").indexOf(" unsortable ") == -1) {
 989                         cell.innerHTML += '&nbsp;&nbsp;<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>';
 990                 }
 991         }
 992         if (ts_alternate_row_colors) {
 993                 ts_alternate(table);
 994         }
 995 }
 996
 997 function ts_getInnerText(el) {
 998         if (typeof el == "string") return el;
 999         if (typeof el == "undefined") { return el };
1000         if (el.textContent) return el.textContent; // not needed but it is faster
1001         if (el.innerText) return el.innerText;     // IE doesn't have textContent
1002         var str = "";
1003
1004         var cs = el.childNodes;
1005         var l = cs.length;
1006         for (var i = 0; i < l; i++) {
1007                 switch (cs[i].nodeType) {
1008                         case 1: //ELEMENT_NODE
1009                                 str += ts_getInnerText(cs[i]);
1010                                 break;
1011                         case 3: //TEXT_NODE
1012                                 str += cs[i].nodeValue;
1013                                 break;
1014                 }
1015         }
1016         return str;
1017 }
1018
1019 function ts_resortTable(lnk) {
1020         // get the span
1021         var span = lnk.getElementsByTagName('span')[0];
1022
1023         var td = lnk.parentNode;
1024         var tr = td.parentNode;
1025         var column = td.cellIndex;
1026
1027         var table = tr.parentNode;
1028         while (table && !(table.tagName && table.tagName.toLowerCase() == 'table'))
1029                 table = table.parentNode;
1030         if (!table) return;
1031
1032         // Work out a type for the column
1033         if (table.rows.length <= 1) return;
1034
1035         // Skip the first row if that's where the headings are
1036         var rowStart = (table.tHead && table.tHead.rows.length > 0 ? 0 : 1);
1037
1038         var itm = "";
1039         for (var i = rowStart; i < table.rows.length; i++) {
1040                 if (table.rows[i].cells.length > column) {
1041                         itm = ts_getInnerText(table.rows[i].cells[column]);
1042                         itm = itm.replace(/^[\s\xa0]+/, "").replace(/[\s\xa0]+$/, "");
1043                         if (itm != "") break;
1044                 }
1045         }
1046
1047         sortfn = ts_sort_caseinsensitive;
1048         if (itm.match(/^\d\d[\/. -][a-zA-Z]{3}[\/. -]\d\d\d\d$/))
1049                 sortfn = ts_sort_date;
1050         if (itm.match(/^\d\d[\/.-]\d\d[\/.-]\d\d\d\d$/))
1051                 sortfn = ts_sort_date;
1052         if (itm.match(/^\d\d[\/.-]\d\d[\/.-]\d\d$/))
1053                 sortfn = ts_sort_date;
1054         if (itm.match(/^[\u00a3$\u20ac]/)) // pound dollar euro
1055                 sortfn = ts_sort_currency;
1056         if (itm.match(/^[\d.,]+\%?$/))
1057                 sortfn = ts_sort_numeric;
1058
1059         var reverse = (span.getAttribute("sortdir") == 'down');
1060
1061         var newRows = new Array();
1062         for (var j = rowStart; j < table.rows.length; j++) {
1063                 var row = table.rows[j];
1064                 var keyText = ts_getInnerText(row.cells[column]);
1065                 var oldIndex = (reverse ? -j : j);
1066
1067                 newRows[newRows.length] = new Array(row, keyText, oldIndex);
1068         }
1069
1070         newRows.sort(sortfn);
1071
1072         var arrowHTML;
1073         if (reverse) {
1074                         arrowHTML = '<img src="'+ ts_image_path + ts_image_down + '" alt="&darr;"/>';
1075                         newRows.reverse();
1076                         span.setAttribute('sortdir','up');
1077         } else {
1078                         arrowHTML = '<img src="'+ ts_image_path + ts_image_up + '" alt="&uarr;"/>';
1079                         span.setAttribute('sortdir','down');
1080         }
1081
1082         // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
1083         // don't do sortbottom rows
1084         for (var i = 0; i < newRows.length; i++) {
1085                 if ((" "+newRows[i][0].className+" ").indexOf(" sortbottom ") == -1)
1086                         table.tBodies[0].appendChild(newRows[i][0]);
1087         }
1088         // do sortbottom rows only
1089         for (var i = 0; i < newRows.length; i++) {
1090                 if ((" "+newRows[i][0].className+" ").indexOf(" sortbottom ") != -1)
1091                         table.tBodies[0].appendChild(newRows[i][0]);
1092         }
1093
1094         // Delete any other arrows there may be showing
1095         var spans = getElementsByClassName(tr, "span", "sortarrow");
1096         for (var i = 0; i < spans.length; i++) {
1097                 spans[i].innerHTML = '<img src="'+ ts_image_path + ts_image_none + '" alt="&darr;"/>';
1098         }
1099         span.innerHTML = arrowHTML;
1100
1101         ts_alternate(table);
1102 }
1103
1104 function ts_dateToSortKey(date) {
1105         // y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
1106         if (date.length == 11) {
1107                 switch (date.substr(3,3).toLowerCase()) {
1108                         case "jan": var month = "01"; break;
1109                         case "feb": var month = "02"; break;
1110                         case "mar": var month = "03"; break;
1111                         case "apr": var month = "04"; break;
1112                         case "may": var month = "05"; break;
1113                         case "jun": var month = "06"; break;
1114                         case "jul": var month = "07"; break;
1115                         case "aug": var month = "08"; break;
1116                         case "sep": var month = "09"; break;
1117                         case "oct": var month = "10"; break;
1118                         case "nov": var month = "11"; break;
1119                         case "dec": var month = "12"; break;
1120                         // default: var month = "00";
1121                 }
1122                 return date.substr(7,4)+month+date.substr(0,2);
1123         } else if (date.length == 10) {
1124                 if (ts_europeandate == false) {
1125                         return date.substr(6,4)+date.substr(0,2)+date.substr(3,2);
1126                 } else {
1127                         return date.substr(6,4)+date.substr(3,2)+date.substr(0,2);
1128                 }
1129         } else if (date.length == 8) {
1130                 yr = date.substr(6,2);
1131                 if (parseInt(yr) < 50) {
1132                         yr = '20'+yr;
1133                 } else {
1134                         yr = '19'+yr;
1135                 }
1136                 if (ts_europeandate == true) {
1137                         return yr+date.substr(3,2)+date.substr(0,2);
1138                 } else {
1139                         return yr+date.substr(0,2)+date.substr(3,2);
1140                 }
1141         }
1142         return "00000000";
1143 }
1144
1145 function ts_parseFloat(num) {
1146         if (!num) return 0;
1147         num = parseFloat(num.replace(/,/g, ""));
1148         return (isNaN(num) ? 0 : num);
1149 }
1150
1151 function ts_sort_date(a,b) {
1152         var aa = ts_dateToSortKey(a[1]);
1153         var bb = ts_dateToSortKey(b[1]);
1154         return (aa < bb ? -1 : aa > bb ? 1 : a[2] - b[2]);
1155 }
1156
1157 function ts_sort_currency(a,b) {
1158         var aa = ts_parseFloat(a[1].replace(/[^0-9.]/g,''));
1159         var bb = ts_parseFloat(b[1].replace(/[^0-9.]/g,''));
1160         return (aa != bb ? aa - bb : a[2] - b[2]);
1161 }
1162
1163 function ts_sort_numeric(a,b) {
1164         var aa = ts_parseFloat(a[1]);
1165         var bb = ts_parseFloat(b[1]);
1166         return (aa != bb ? aa - bb : a[2] - b[2]);
1167 }
1168
1169 function ts_sort_caseinsensitive(a,b) {
1170         var aa = a[1].toLowerCase();
1171         var bb = b[1].toLowerCase();
1172         return (aa < bb ? -1 : aa > bb ? 1 : a[2] - b[2]);
1173 }
1174
1175 function ts_sort_default(a,b) {
1176         return (a[1] < b[1] ? -1 : a[1] > b[1] ? 1 : a[2] - b[2]);
1177 }
1178
1179 function ts_alternate(table) {
1180         // Take object table and get all it's tbodies.
1181         var tableBodies = table.getElementsByTagName("tbody");
1182         // Loop through these tbodies
1183         for (var i = 0; i < tableBodies.length; i++) {
1184                 // Take the tbody, and get all it's rows
1185                 var tableRows = tableBodies[i].getElementsByTagName("tr");
1186                 // Loop through these rows
1187                 // Start at 1 because we want to leave the heading row untouched
1188                 for (var j = 0; j < tableRows.length; j++) {
1189                         // Check if j is even, and apply classes for both possible results
1190                         var oldClasses = tableRows[j].className.split(" ");
1191                         var newClassName = "";
1192                         for (var k = 0; k < oldClasses.length; k++) {
1193                                 if (oldClasses[k] != "" && oldClasses[k] != "even" && oldClasses[k] != "odd")
1194                                         newClassName += oldClasses[k] + " ";
1195                         }
1196                         tableRows[j].className = newClassName + (j % 2 == 0 ? "even" : "odd");
1197                 }
1198         }
1199 }
1200
1201 /*
1202  * End of table sorting code
1203  */
1204
1205
1206 /**
1207  * Add a cute little box at the top of the screen to inform the user of
1208  * something, replacing any preexisting message.
1209  *
1210  * @param String message HTML to be put inside the right div
1211  * @param String className   Used in adding a class; should be different for each
1212  *   call to allow CSS/JS to hide different boxes.  null = no class used.
1213  * @return Boolean       True on success, false on failure
1214  */
1215 function jsMsg( message, className ) {
1216         if ( !document.getElementById ) {
1217                 return false;
1218         }
1219         // We special-case skin structures provided by the software.  Skins that
1220         // choose to abandon or significantly modify our formatting can just define
1221         // an mw-js-message div to start with.
1222         var messageDiv = document.getElementById( 'mw-js-message' );
1223         if ( !messageDiv ) {
1224                 messageDiv = document.createElement( 'div' );
1225                 if ( document.getElementById( 'column-content' )
1226                 && document.getElementById( 'content' ) ) {
1227                         // MonoBook, presumably
1228                         document.getElementById( 'content' ).insertBefore(
1229                                 messageDiv,
1230                                 document.getElementById( 'content' ).firstChild
1231                         );
1232                 } else if ( document.getElementById('content')
1233                 && document.getElementById( 'article' ) ) {
1234                         // Non-Monobook but still recognizable (old-style)
1235                         document.getElementById( 'article').insertBefore(
1236                                 messageDiv,
1237                                 document.getElementById( 'article' ).firstChild
1238                         );
1239                 } else {
1240                         return false;
1241                 }
1242         }
1243
1244         messageDiv.setAttribute( 'id', 'mw-js-message' );
1245         if( className ) {
1246                 messageDiv.setAttribute( 'class', 'mw-js-message-'+className );
1247         }
1248         messageDiv.innerHTML = message;
1249         return true;
1250 }
1251
1252 /**
1253  * Inject a cute little progress spinner after the specified element
1254  *
1255  * @param element Element to inject after
1256  * @param id Identifier string (for use with removeSpinner(), below)
1257  */
1258 function injectSpinner( element, id ) {
1259         var spinner = document.createElement( "img" );
1260         spinner.id = "mw-spinner-" + id;
1261         spinner.src = stylepath + "/common/images/spinner.gif";
1262         spinner.alt = spinner.title = "...";
1263         if( element.nextSibling ) {
1264                 element.parentNode.insertBefore( spinner, element.nextSibling );
1265         } else {
1266                 element.parentNode.appendChild( spinner );
1267         }
1268 }
1269
1270 /**
1271  * Remove a progress spinner added with injectSpinner()
1272  *
1273  * @param id Identifier string
1274  */
1275 function removeSpinner( id ) {
1276         var spinner = document.getElementById( "mw-spinner-" + id );
1277         if( spinner ) {
1278                 spinner.parentNode.removeChild( spinner );
1279         }
1280 }
1281
1282 function runOnloadHook() {
1283         // don't run anything below this for non-dom browsers
1284         if (doneOnloadHook || !(document.getElementById && document.getElementsByTagName)) {
1285                 return;
1286         }
1287
1288         // set this before running any hooks, since any errors below
1289         // might cause the function to terminate prematurely
1290         doneOnloadHook = true;
1291
1292         histrowinit();
1293         unhidetzbutton();
1294         tabbedprefs();
1295         updateTooltipAccessKeys( null );
1296         akeytt( null );
1297         scrollEditBox();
1298         setupCheckboxShiftClick();
1299         sortables_init();
1300
1301         // Run any added-on functions
1302         for (var i = 0; i < onloadFuncts.length; i++) {
1303                 onloadFuncts[i]();
1304         }
1305 }
1306
1307 /**
1308  * Add an event handler to an element
1309  *
1310  * @param Element element Element to add handler to
1311  * @param String attach Event to attach to
1312  * @param callable handler Event handler callback
1313  */
1314 function addHandler( element, attach, handler ) {
1315         if( window.addEventListener ) {
1316                 element.addEventListener( attach, handler, false );
1317         } else if( window.attachEvent ) {
1318                 element.attachEvent( 'on' + attach, handler );
1319         }
1320 }
1321
1322 /**
1323  * Add a click event handler to an element
1324  *
1325  * @param Element element Element to add handler to
1326  * @param callable handler Event handler callback
1327  */
1328 function addClickHandler( element, handler ) {
1329         addHandler( element, 'click', handler );
1330 }
1331 //note: all skins should call runOnloadHook() at the end of html output,
1332 //      so the below should be redundant. It's there just in case.
1333 hookEvent("load", runOnloadHook);
1334 hookEvent("load", mwSetupToolbar);