skins/common/wikibits.js

   1 // MediaWiki JavaScript support functions
   2
   3 var clientPC = navigator.userAgent.toLowerCase(); // Get client info
   4 var is_gecko = /gecko/.test( clientPC ) &&
   5         !/khtml|spoofer|netscape\/7\.0/.test(clientPC);
   6 var is_safari = clientPC.indexOf('applewebkit') != -1 &&
   7         clientPC.indexOf('spoofer') == -1;
   8 var is_khtml = navigator.vendor == 'KDE' ||
   9         ( document.childNodes && !document.all && !navigator.taintEnabled );
  10 // For accesskeys; note that FF3+ is included here!
  11 var is_ff2 = /firefox\/[2-9]|minefield\/3/.test( clientPC );
  12 // These aren't used here, but some custom scripts rely on them
  13 var is_ff2_win = is_ff2 && clientPC.indexOf('windows') != -1;
  14 var is_ff2_x11 = is_ff2 && clientPC.indexOf('x11') != -1;
  15 if (clientPC.indexOf('opera') != -1) {
  16         var is_opera = true;
  17         var is_opera_preseven = window.opera && !document.childNodes;
  18         var is_opera_seven = window.opera && document.childNodes;
  19         var is_opera_95 = /opera\/(9.[5-9]|[1-9][0-9])/.test( clientPC );
  20 }
  21
  22 // Global external objects used by this script.
  23 /*extern ta, stylepath, skin */
  24
  25 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  26 var doneOnloadHook;
  27
  28 if (!window.onloadFuncts) {
  29         var onloadFuncts = [];
  30 }
  31
  32 function addOnloadHook(hookFunct) {
  33         // Allows add-on scripts to add onload functions
  34         onloadFuncts[onloadFuncts.length] = hookFunct;
  35 }
  36
  37 function hookEvent(hookName, hookFunct) {
  38         if (window.addEventListener) {
  39                 window.addEventListener(hookName, hookFunct, false);
  40         } else if (window.attachEvent) {
  41                 window.attachEvent("on" + hookName, hookFunct);
  42         }
  43 }
  44
  45 // document.write special stylesheet links
  46 if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  47         if (is_opera_preseven) {
  48                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  49         } else if (is_opera_seven && !is_opera_95) {
  50                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  51         } else if (is_khtml) {
  52                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  53         }
  54 }
  55
  56 if (wgBreakFrames) {
  57         // Un-trap us from framesets
  58         if (window.top != window) {
  59                 window.top.location = window.location;
  60         }
  61 }
  62
  63 // for enhanced RecentChanges
  64 function toggleVisibility(_levelId, _otherId, _linkId) {
  65         var thisLevel = document.getElementById(_levelId);
  66         var otherLevel = document.getElementById(_otherId);
  67         var linkLevel = document.getElementById(_linkId);
  68         if (thisLevel.style.display == 'none') {
  69                 thisLevel.style.display = 'block';
  70                 otherLevel.style.display = 'none';
  71                 linkLevel.style.display = 'inline';
  72         } else {
  73                 thisLevel.style.display = 'none';
  74                 otherLevel.style.display = 'inline';
  75                 linkLevel.style.display = 'none';
  76         }
  77 }
  78
  79 function historyRadios(parent) {
  80         var inputs = parent.getElementsByTagName('input');
  81         var radios = [];
  82         for (var i = 0; i < inputs.length; i++) {
  83                 if (inputs[i].name == "diff" || inputs[i].name == "oldid") {
  84                         radios[radios.length] = inputs[i];
  85                 }
  86         }
  87         return radios;
  88 }
  89
  90 // check selection and tweak visibility/class onclick
  91 function diffcheck() {
  92         var dli = false; // the li where the diff radio is checked
  93         var oli = false; // the li where the oldid radio is checked
  94         var hf = document.getElementById('pagehistory');
  95         if (!hf) {
  96                 return true;
  97         }
  98         var lis = hf.getElementsByTagName('li');
  99         for (var i=0;i<lis.length;i++) {
 100                 var inputs = historyRadios(lis[i]);
 101                 if (inputs[1] && inputs[0]) {
 102                         if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
 103                                 if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) {
 104                                         return false;
 105                                 }
 106                                 if (oli) { // it's the second checked radio
 107                                         if (inputs[1].checked) {
 108                                                 oli.className = "selected";
 109                                                 return false;
 110                                         }
 111                                 } else if (inputs[0].checked) {
 112                                         return false;
 113                                 }
 114                                 if (inputs[0].checked) {
 115                                         dli = lis[i];
 116                                 }
 117                                 if (!oli) {
 118                                         inputs[0].style.visibility = 'hidden';
 119                                 }
 120                                 if (dli) {
 121                                         inputs[1].style.visibility = 'hidden';
 122                                 }
 123                                 lis[i].className = "selected";
 124                                 oli = lis[i];
 125                         }  else { // no radio is checked in this row
 126                                 if (!oli) {
 127                                         inputs[0].style.visibility = 'hidden';
 128                                 } else {
 129                                         inputs[0].style.visibility = 'visible';
 130                                 }
 131                                 if (dli) {
 132                                         inputs[1].style.visibility = 'hidden';
 133                                 } else {
 134                                         inputs[1].style.visibility = 'visible';
 135                                 }
 136                                 lis[i].className = "";
 137                         }
 138                 }
 139         }
 140         return true;
 141 }
 142
 143 // page history stuff
 144 // attach event handlers to the input elements on history page
 145 function histrowinit() {
 146         var hf = document.getElementById('pagehistory');
 147         if (!hf) {
 148                 return;
 149         }
 150         var lis = hf.getElementsByTagName('li');
 151         for (var i = 0; i < lis.length; i++) {
 152                 var inputs = historyRadios(lis[i]);
 153                 if (inputs[0] && inputs[1]) {
 154                         inputs[0].onclick = diffcheck;
 155                         inputs[1].onclick = diffcheck;
 156                 }
 157         }
 158         diffcheck();
 159 }
 160
 161 // generate toc from prefs form, fold sections
 162 // XXX: needs testing on IE/Mac and safari
 163 // more comments to follow
 164 function tabbedprefs() {
 165         var prefform = document.getElementById('preferences');
 166         if (!prefform || !document.createElement) {
 167                 return;
 168         }
 169         if (prefform.nodeName.toLowerCase() == 'a') {
 170                 return; // Occasional IE problem
 171         }
 172         prefform.className = prefform.className + 'jsprefs';
 173         var sections = [];
 174         var children = prefform.childNodes;
 175         var seci = 0;
 176         for (var i = 0; i < children.length; i++) {
 177                 if (children[i].nodeName.toLowerCase() == 'fieldset') {
 178                         children[i].id = 'prefsection-' + seci;
 179                         children[i].className = 'prefsection';
 180                         if (is_opera || is_khtml) {
 181                                 children[i].className = 'prefsection operaprefsection';
 182                         }
 183                         var legends = children[i].getElementsByTagName('legend');
 184                         sections[seci] = {};
 185                         legends[0].className = 'mainLegend';
 186                         if (legends[0] && legends[0].firstChild.nodeValue) {
 187                                 sections[seci].text = legends[0].firstChild.nodeValue;
 188                         } else {
 189                                 sections[seci].text = '# ' + seci;
 190                         }
 191                         sections[seci].secid = children[i].id;
 192                         seci++;
 193                         if (sections.length != 1) {
 194                                 children[i].style.display = 'none';
 195                         } else {
 196                                 var selectedid = children[i].id;
 197                         }
 198                 }
 199         }
 200         var toc = document.createElement('ul');
 201         toc.id = 'preftoc';
 202         toc.selectedid = selectedid;
 203         for (i = 0; i < sections.length; i++) {
 204                 var li = document.createElement('li');
 205                 if (i === 0) {
 206                         li.className = 'selected';
 207                 }
 208                 var a = document.createElement('a');
 209                 a.href = '#' + sections[i].secid;
 210                 a.onmousedown = a.onclick = uncoversection;
 211                 a.appendChild(document.createTextNode(sections[i].text));
 212                 a.secid = sections[i].secid;
 213                 li.appendChild(a);
 214                 toc.appendChild(li);
 215         }
 216         prefform.parentNode.insertBefore(toc, prefform.parentNode.childNodes[0]);
 217         document.getElementById('prefsubmit').id = 'prefcontrol';
 218 }
 219
 220 function uncoversection() {
 221         var oldsecid = this.parentNode.parentNode.selectedid;
 222         var newsec = document.getElementById(this.secid);
 223         if (oldsecid != this.secid) {
 224                 var ul = document.getElementById('preftoc');
 225                 document.getElementById(oldsecid).style.display = 'none';
 226                 newsec.style.display = 'block';
 227                 ul.selectedid = this.secid;
 228                 var lis = ul.getElementsByTagName('li');
 229                 for (var i = 0; i< lis.length; i++) {
 230                         lis[i].className = '';
 231                 }
 232                 this.parentNode.className = 'selected';
 233         }
 234         return false;
 235 }
 236
 237 // Timezone stuff
 238 // tz in format [+-]HHMM
 239 function checkTimezone(tz, msg) {
 240         var localclock = new Date();
 241         // returns negative offset from GMT in minutes
 242         var tzRaw = localclock.getTimezoneOffset();
 243         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 244         var tzMin = Math.abs(tzRaw) % 60;
 245         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
 246         if (tz != tzString) {
 247                 var junk = msg.split('$1');
 248                 document.write(junk[0] + "UTC" + tzString + junk[1]);
 249         }
 250 }
 251
 252 function unhidetzbutton() {
 253         var tzb = document.getElementById('guesstimezonebutton');
 254         if (tzb) {
 255                 tzb.style.display = 'inline';
 256         }
 257 }
 258
 259 // in [-]HH:MM format...
 260 // won't yet work with non-even tzs
 261 function fetchTimezone() {
 262         // FIXME: work around Safari bug
 263         var localclock = new Date();
 264         // returns negative offset from GMT in minutes
 265         var tzRaw = localclock.getTimezoneOffset();
 266         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 267         var tzMin = Math.abs(tzRaw) % 60;
 268         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 269                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 270         return tzString;
 271 }
 272
 273 function guessTimezone(box) {
 274         document.getElementsByName("wpHourDiff")[0].value = fetchTimezone();
 275 }
 276
 277 function showTocToggle() {
 278         if (document.createTextNode) {
 279                 // Uses DOM calls to avoid document.write + XHTML issues
 280
 281                 var linkHolder = document.getElementById('toctitle');
 282                 if (!linkHolder) {
 283                         return;
 284                 }
 285
 286                 var outerSpan = document.createElement('span');
 287                 outerSpan.className = 'toctoggle';
 288
 289                 var toggleLink = document.createElement('a');
 290                 toggleLink.id = 'togglelink';
 291                 toggleLink.className = 'internal';
 292                 toggleLink.href = 'javascript:toggleToc()';
 293                 toggleLink.appendChild(document.createTextNode(tocHideText));
 294
 295                 outerSpan.appendChild(document.createTextNode('['));
 296                 outerSpan.appendChild(toggleLink);
 297                 outerSpan.appendChild(document.createTextNode(']'));
 298
 299                 linkHolder.appendChild(document.createTextNode(' '));
 300                 linkHolder.appendChild(outerSpan);
 301
 302                 var cookiePos = document.cookie.indexOf("hidetoc=");
 303                 if (cookiePos > -1 && document.cookie.charAt(cookiePos + 8) == 1) {
 304                         toggleToc();
 305                 }
 306         }
 307 }
 308
 309 function changeText(el, newText) {
 310         // Safari work around
 311         if (el.innerText) {
 312                 el.innerText = newText;
 313         } else if (el.firstChild && el.firstChild.nodeValue) {
 314                 el.firstChild.nodeValue = newText;
 315         }
 316 }
 317
 318 function toggleToc() {
 319         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 320         var toggleLink = document.getElementById('togglelink');
 321
 322         if (toc && toggleLink && toc.style.display == 'none') {
 323                 changeText(toggleLink, tocHideText);
 324                 toc.style.display = 'block';
 325                 document.cookie = "hidetoc=0";
 326         } else {
 327                 changeText(toggleLink, tocShowText);
 328                 toc.style.display = 'none';
 329                 document.cookie = "hidetoc=1";
 330         }
 331 }
 332
 333 var mwEditButtons = [];
 334 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 335
 336 // this function generates the actual toolbar buttons with localized text
 337 // we use it to avoid creating the toolbar where javascript is not enabled
 338 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText, imageId) {
 339         // Don't generate buttons for browsers which don't fully
 340         // support it.
 341         mwEditButtons[mwEditButtons.length] =
 342                 {"imageId": imageId,
 343                  "imageFile": imageFile,
 344                  "speedTip": speedTip,
 345                  "tagOpen": tagOpen,
 346                  "tagClose": tagClose,
 347                  "sampleText": sampleText};
 348 }
 349
 350 // this function generates the actual toolbar buttons with localized text
 351 // we use it to avoid creating the toolbar where javascript is not enabled
 352 function mwInsertEditButton(parent, item) {
 353         var image = document.createElement("img");
 354         image.width = 23;
 355         image.height = 22;
 356         image.className = "mw-toolbar-editbutton";
 357         if (item.imageId) image.id = item.imageId;
 358         image.src = item.imageFile;
 359         image.border = 0;
 360         image.alt = item.speedTip;
 361         image.title = item.speedTip;
 362         image.style.cursor = "pointer";
 363         image.onclick = function() {
 364                 insertTags(item.tagOpen, item.tagClose, item.sampleText);
 365                 return false;
 366         };
 367
 368         parent.appendChild(image);
 369         return true;
 370 }
 371
 372 function mwSetupToolbar() {
 373         var toolbar = document.getElementById('toolbar');
 374         if (!toolbar) { return false; }
 375
 376         var textbox = document.getElementById('wpTextbox1');
 377         if (!textbox) { return false; }
 378
 379         // Don't generate buttons for browsers which don't fully
 380         // support it.
 381         if (!(document.selection && document.selection.createRange)
 382                 && textbox.selectionStart === null) {
 383                 return false;
 384         }
 385
 386         for (var i = 0; i < mwEditButtons.length; i++) {
 387                 mwInsertEditButton(toolbar, mwEditButtons[i]);
 388         }
 389         for (var i = 0; i < mwCustomEditButtons.length; i++) {
 390                 mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
 391         }
 392         return true;
 393 }
 394
 395 function escapeQuotes(text) {
 396         var re = new RegExp("'","g");
 397         text = text.replace(re,"\\'");
 398         re = new RegExp("\\n","g");
 399         text = text.replace(re,"\\n");
 400         return escapeQuotesHTML(text);
 401 }
 402
 403 function escapeQuotesHTML(text) {
 404         var re = new RegExp('&',"g");
 405         text = text.replace(re,"&amp;");
 406         re = new RegExp('"',"g");
 407         text = text.replace(re,"&quot;");
 408         re = new RegExp('<',"g");
 409         text = text.replace(re,"&lt;");
 410         re = new RegExp('>',"g");
 411         text = text.replace(re,"&gt;");
 412         return text;
 413 }
 414
 415 // apply tagOpen/tagClose to selection in textarea,
 416 // use sampleText instead of selection if there is none
 417 function insertTags(tagOpen, tagClose, sampleText) {
 418         var txtarea;
 419         if (document.editform) {
 420                 txtarea = document.editform.wpTextbox1;
 421         } else {
 422                 // some alternate form? take the first one we can find
 423                 var areas = document.getElementsByTagName('textarea');
 424                 txtarea = areas[0];
 425         }
 426         var selText, isSample = false;
 427
 428         if (document.selection  && document.selection.createRange) { // IE/Opera
 429
 430                 //save window scroll position
 431                 if (document.documentElement && document.documentElement.scrollTop)
 432                         var winScroll = document.documentElement.scrollTop
 433                 else if (document.body)
 434                         var winScroll = document.body.scrollTop;
 435                 //get current selection
 436                 txtarea.focus();
 437                 var range = document.selection.createRange();
 438                 selText = range.text;
 439                 //insert tags
 440                 checkSelectedText();
 441                 range.text = tagOpen + selText + tagClose;
 442                 //mark sample text as selected
 443                 if (isSample && range.moveStart) {
 444                         if (window.opera)
 445                                 tagClose = tagClose.replace(/\n/g,'');
 446                         range.moveStart('character', - tagClose.length - selText.length);
 447                         range.moveEnd('character', - tagClose.length);
 448                 }
 449                 range.select();
 450                 //restore window scroll position
 451                 if (document.documentElement && document.documentElement.scrollTop)
 452                         document.documentElement.scrollTop = winScroll
 453                 else if (document.body)
 454                         document.body.scrollTop = winScroll;
 455
 456         } else if (txtarea.selectionStart || txtarea.selectionStart == '0') { // Mozilla
 457
 458                 //save textarea scroll position
 459                 var textScroll = txtarea.scrollTop;
 460                 //get current selection
 461                 txtarea.focus();
 462                 var startPos = txtarea.selectionStart;
 463                 var endPos = txtarea.selectionEnd;
 464                 selText = txtarea.value.substring(startPos, endPos);
 465                 //insert tags
 466                 checkSelectedText();
 467                 txtarea.value = txtarea.value.substring(0, startPos)
 468                         + tagOpen + selText + tagClose
 469                         + txtarea.value.substring(endPos, txtarea.value.length);
 470                 //set new selection
 471                 if (isSample) {
 472                         txtarea.selectionStart = startPos + tagOpen.length;
 473                         txtarea.selectionEnd = startPos + tagOpen.length + selText.length;
 474                 } else {
 475                         txtarea.selectionStart = startPos + tagOpen.length + selText.length + tagClose.length;
 476                         txtarea.selectionEnd = txtarea.selectionStart;
 477                 }
 478                 //restore textarea scroll position
 479                 txtarea.scrollTop = textScroll;
 480         }
 481
 482         function checkSelectedText(){
 483                 if (!selText) {
 484                         selText = sampleText;
 485                         isSample = true;
 486                 } else if (selText.charAt(selText.length - 1) == ' ') { //exclude ending space char
 487                         selText = selText.substring(0, selText.length - 1);
 488                         tagClose += ' '
 489                 }
 490         }
 491
 492 }
 493
 494
 495 /**
 496  * Set the accesskey prefix based on browser detection.
 497  */
 498 var tooltipAccessKeyPrefix = 'alt-';
 499 if (is_opera) {
 500         tooltipAccessKeyPrefix = 'shift-esc-';
 501 } else if (is_safari
 502            || navigator.userAgent.toLowerCase().indexOf('mac') != -1
 503            || navigator.userAgent.toLowerCase().indexOf('konqueror') != -1 ) {
 504         tooltipAccessKeyPrefix = 'ctrl-';
 505 } else if (is_ff2) {
 506         tooltipAccessKeyPrefix = 'alt-shift-';
 507 }
 508 var tooltipAccessKeyRegexp = /\[(ctrl-)?(alt-)?(shift-)?(esc-)?.\]$/;
 509
 510 /**
 511  * Add the appropriate prefix to the accesskey shown in the tooltip.
 512  * If the nodeList parameter is given, only those nodes are updated;
 513  * otherwise, all the nodes that will probably have accesskeys by
 514  * default are updated.
 515  *
 516  * @param Array nodeList -- list of elements to update
 517  */
 518 function updateTooltipAccessKeys( nodeList ) {
 519         if ( !nodeList ) {
 520                 // skins without a "column-one" element don't seem to have links with accesskeys either
 521                 var columnOne = document.getElementById("column-one");
 522                 if ( columnOne )
 523                         updateTooltipAccessKeys( columnOne.getElementsByTagName("a") );
 524                 // these are rare enough that no such optimization is needed
 525                 updateTooltipAccessKeys( document.getElementsByTagName("input") );
 526                 updateTooltipAccessKeys( document.getElementsByTagName("label") );
 527                 return;
 528         }
 529
 530         for ( var i = 0; i < nodeList.length; i++ ) {
 531                 var element = nodeList[i];
 532                 var tip = element.getAttribute("title");
 533                 var key = element.getAttribute("accesskey");
 534                 if ( key && tooltipAccessKeyRegexp.exec(tip) ) {
 535                         tip = tip.replace(tooltipAccessKeyRegexp,
 536                                           "["+tooltipAccessKeyPrefix+key+"]");
 537                         element.setAttribute("title", tip );
 538                 }
 539         }
 540 }
 541
 542 /**
 543  * Add a link to one of the portlet menus on the page, including:
 544  *
 545  * p-cactions: Content actions (shown as tabs above the main content in Monobook)
 546  * p-personal: Personal tools (shown at the top right of the page in Monobook)
 547  * p-navigation: Navigation
 548  * p-tb: Toolbox
 549  *
 550  * This function exists for the convenience of custom JS authors.  All
 551  * but the first three parameters are optional, though providing at
 552  * least an id and a tooltip is recommended.
 553  *
 554  * By default the new link will be added to the end of the list.  To
 555  * add the link before a given existing item, pass the DOM node of
 556  * that item (easily obtained with document.getElementById()) as the
 557  * nextnode parameter; to add the link _after_ an existing item, pass
 558  * the node's nextSibling instead.
 559  *
 560  * @param String portlet -- id of the target portlet ("p-cactions", "p-personal", "p-navigation" or "p-tb")
 561  * @param String href -- link URL
 562  * @param String text -- link text (will be automatically lowercased by CSS for p-cactions in Monobook)
 563  * @param String id -- id of the new item, should be unique and preferably have the appropriate prefix ("ca-", "pt-", "n-" or "t-")
 564  * @param String tooltip -- text to show when hovering over the link, without accesskey suffix
 565  * @param String accesskey -- accesskey to activate this link (one character, try to avoid conflicts)
 566  * @param Node nextnode -- the DOM node before which the new item should be added, should be another item in the same list
 567  *
 568  * @return Node -- the DOM node of the new item (an LI element) or null
 569  */
 570 function addPortletLink(portlet, href, text, id, tooltip, accesskey, nextnode) {
 571         var node = document.getElementById(portlet);
 572         if ( !node ) return null;
 573         node = node.getElementsByTagName( "ul" )[0];
 574         if ( !node ) return null;
 575
 576         var link = document.createElement( "a" );
 577         link.appendChild( document.createTextNode( text ) );
 578         link.href = href;
 579
 580         var item = document.createElement( "li" );
 581         item.appendChild( link );
 582         if ( id ) item.id = id;
 583
 584         if ( accesskey ) {
 585                 link.setAttribute( "accesskey", accesskey );
 586                 tooltip += " ["+accesskey+"]";
 587         }
 588         if ( tooltip ) {
 589                 link.setAttribute( "title", tooltip );
 590         }
 591         if ( accesskey && tooltip ) {
 592                 updateTooltipAccessKeys( new Array( link ) );
 593         }
 594
 595         if ( nextnode && nextnode.parentNode == node )
 596                 node.insertBefore( item, nextnode );
 597         else
 598                 node.appendChild( item );  // IE compatibility (?)
 599
 600         return item;
 601 }
 602
 603
 604 /**
 605  * Set up accesskeys/tooltips from the deprecated ta array.  If doId
 606  * is specified, only set up for that id.  Note that this function is
 607  * deprecated and will not be supported indefinitely -- use
 608  * updateTooltipAccessKey() instead.
 609  *
 610  * @param mixed doId string or null
 611  */
 612 function akeytt( doId ) {
 613         // A lot of user scripts (and some of the code below) break if
 614         // ta isn't defined, so we make sure it is.  Explictly using
 615         // window.ta avoids a "ta is not defined" error.
 616         if (!window.ta) window.ta = new Array;
 617
 618         // Make a local, possibly restricted, copy to avoid clobbering
 619         // the original.
 620         var ta;
 621         if ( doId ) {
 622                 ta = [doId];
 623         } else {
 624                 ta = window.ta;
 625         }
 626
 627         // Now deal with evil deprecated ta
 628         var watchCheckboxExists = document.getElementById( 'wpWatchthis' ) ? true : false;
 629         for (var id in ta) {
 630                 var n = document.getElementById(id);
 631                 if (n) {
 632                         var a = null;
 633                         var ak = '';
 634                         // Are we putting accesskey in it
 635                         if (ta[id][0].length > 0) {
 636                                 // Is this object a object? If not assume it's the next child.
 637
 638                                 if (n.nodeName.toLowerCase() == "a") {
 639                                         a = n;
 640                                 } else {
 641                                         a = n.childNodes[0];
 642                                 }
 643                                 // Don't add an accesskey for the watch tab if the watch
 644                                 // checkbox is also available.
 645                                 if (a && ((id != 'ca-watch' && id != 'ca-unwatch') || !watchCheckboxExists)) {
 646                                         a.accessKey = ta[id][0];
 647                                         ak = ' ['+tooltipAccessKeyPrefix+ta[id][0]+']';
 648                                 }
 649                         } else {
 650                                 // We don't care what type the object is when assigning tooltip
 651                                 a = n;
 652                                 ak = '';
 653                         }
 654
 655                         if (a) {
 656                                 a.title = ta[id][1]+ak;
 657                         }
 658                 }
 659         }
 660 }
 661
 662 function setupRightClickEdit() {
 663         if (document.getElementsByTagName) {
 664                 var spans = document.getElementsByTagName('span');
 665                 for (var i = 0; i < spans.length; i++) {
 666                         var el = spans[i];
 667                         if(el.className == 'editsection') {
 668                                 addRightClickEditHandler(el);
 669                         }
 670                 }
 671         }
 672 }
 673
 674 function addRightClickEditHandler(el) {
 675         for (var i = 0; i < el.childNodes.length; i++) {
 676                 var link = el.childNodes[i];
 677                 if (link.nodeType == 1 && link.nodeName.toLowerCase() == 'a') {
 678                         var editHref = link.getAttribute('href');
 679                         // find the enclosing (parent) header
 680                         var prev = el.parentNode;
 681                         if (prev && prev.nodeType == 1 &&
 682                         prev.nodeName.match(/^[Hh][1-6]$/)) {
 683                                 prev.oncontextmenu = function(e) {
 684                                         if (!e) { e = window.event; }
 685                                         // e is now the event in all browsers
 686                                         var targ;
 687                                         if (e.target) { targ = e.target; }
 688                                         else if (e.srcElement) { targ = e.srcElement; }
 689                                         if (targ.nodeType == 3) { // defeat Safari bug
 690                                                 targ = targ.parentNode;
 691                                         }
 692                                         // targ is now the target element
 693
 694                                         // We don't want to deprive the noble reader of a context menu
 695                                         // for the section edit link, do we?  (Might want to extend this
 696                                         // to all <a>'s?)
 697                                         if (targ.nodeName.toLowerCase() != 'a'
 698                                         || targ.parentNode.className != 'editsection') {
 699                                                 document.location = editHref;
 700                                                 return false;
 701                                         }
 702                                         return true;
 703                                 };
 704                         }
 705                 }
 706         }
 707 }
 708
 709 var checkboxes;
 710 var lastCheckbox;
 711
 712 function setupCheckboxShiftClick() {
 713         checkboxes = [];
 714         lastCheckbox = null;
 715         var inputs = document.getElementsByTagName('input');
 716         addCheckboxClickHandlers(inputs);
 717 }
 718
 719 function addCheckboxClickHandlers(inputs, start) {
 720         if ( !start) start = 0;
 721
 722         var finish = start + 250;
 723         if ( finish > inputs.length )
 724                 finish = inputs.length;
 725
 726         for ( var i = start; i < finish; i++ ) {
 727                 var cb = inputs[i];
 728                 if ( !cb.type || cb.type.toLowerCase() != 'checkbox' )
 729                         continue;
 730                 var end = checkboxes.length;
 731                 checkboxes[end] = cb;
 732                 cb.index = end;
 733                 cb.onclick = checkboxClickHandler;
 734         }
 735
 736         if ( finish < inputs.length ) {
 737                 setTimeout( function () {
 738                         addCheckboxClickHandlers(inputs, finish);
 739                 }, 200 );
 740         }
 741 }
 742
 743 function checkboxClickHandler(e) {
 744         if (typeof e == 'undefined') {
 745                 e = window.event;
 746         }
 747         if ( !e.shiftKey || lastCheckbox === null ) {
 748                 lastCheckbox = this.index;
 749                 return true;
 750         }
 751         var endState = this.checked;
 752         var start, finish;
 753         if ( this.index < lastCheckbox ) {
 754                 start = this.index + 1;
 755                 finish = lastCheckbox;
 756         } else {
 757                 start = lastCheckbox;
 758                 finish = this.index - 1;
 759         }
 760         for (var i = start; i <= finish; ++i ) {
 761                 checkboxes[i].checked = endState;
 762         }
 763         lastCheckbox = this.index;
 764         return true;
 765 }
 766
 767 function toggle_element_activation(ida,idb) {
 768         if (!document.getElementById) {
 769                 return;
 770         }
 771         document.getElementById(ida).disabled=true;
 772         document.getElementById(idb).disabled=false;
 773 }
 774
 775 function toggle_element_check(ida,idb) {
 776         if (!document.getElementById) {
 777                 return;
 778         }
 779         document.getElementById(ida).checked=true;
 780         document.getElementById(idb).checked=false;
 781 }
 782
 783 /**
 784  * Restore the edit box scroll state following a preview operation,
 785  * and set up a form submission handler to remember this state
 786  */
 787 function scrollEditBox() {
 788         var editBox = document.getElementById( 'wpTextbox1' );
 789         var scrollTop = document.getElementById( 'wpScrolltop' );
 790         var editForm = document.getElementById( 'editform' );
 791         if( editBox && scrollTop ) {
 792                 if( scrollTop.value )
 793                         editBox.scrollTop = scrollTop.value;
 794                 addHandler( editForm, 'submit', function() {
 795                         document.getElementById( 'wpScrolltop' ).value = document.getElementById( 'wpTextbox1' ).scrollTop;
 796                 } );
 797         }
 798 }
 799 hookEvent( 'load', scrollEditBox );
 800
 801 var allmessages_nodelist = false;
 802 var allmessages_modified = false;
 803 var allmessages_timeout = false;
 804 var allmessages_running = false;
 805
 806 function allmessagesmodified() {
 807         allmessages_modified = !allmessages_modified;
 808         allmessagesfilter();
 809 }
 810
 811 function allmessagesfilter() {
 812         if ( allmessages_timeout )
 813                 window.clearTimeout( allmessages_timeout );
 814
 815         if ( !allmessages_running )
 816                 allmessages_timeout = window.setTimeout( 'allmessagesfilter_do();', 500 );
 817 }
 818
 819 function allmessagesfilter_do() {
 820         if ( !allmessages_nodelist )
 821                 return;
 822
 823         var text = document.getElementById('allmessagesinput').value;
 824         var nodef = allmessages_modified;
 825
 826         allmessages_running = true;
 827
 828         for ( var name in allmessages_nodelist ) {
 829                 var nodes = allmessages_nodelist[name];
 830                 var display = ( name.indexOf( text ) == -1 ? 'none' : '' );
 831
 832                 for ( var i = 0; i < nodes.length; i++)
 833                         nodes[i].style.display =
 834                                 ( nodes[i].className == "def" && nodef
 835                                   ? 'none' : display );
 836         }
 837
 838         if ( text != document.getElementById('allmessagesinput').value ||
 839              nodef != allmessages_modified )
 840                 allmessagesfilter_do();  // repeat
 841
 842         allmessages_running = false;
 843 }
 844
 845 function allmessagesfilter_init() {
 846         if ( allmessages_nodelist )
 847                 return;
 848
 849         var nodelist = new Array();
 850         var templist = new Array();
 851
 852         var table = document.getElementById('allmessagestable');
 853         if ( !table ) return;
 854
 855         var rows = document.getElementsByTagName('tr');
 856         for ( var i = 0; i < rows.length; i++ ) {
 857                 var id = rows[i].getAttribute('id')
 858                 if ( id && id.substring(0,16) != 'sp-allmessages-r' ) continue;
 859                 templist[ id ] = rows[i];
 860         }
 861
 862         var spans = table.getElementsByTagName('span');
 863         for ( var i = 0; i < spans.length; i++ ) {
 864                 var id = spans[i].getAttribute('id')
 865                 if ( id && id.substring(0,17) != 'sp-allmessages-i-' ) continue;
 866                 if ( !spans[i].firstChild || spans[i].firstChild.nodeType != 3 ) continue;
 867
 868                 var nodes = new Array();
 869                 var row1 = templist[ id.replace('i', 'r1') ];
 870                 var row2 = templist[ id.replace('i', 'r2') ];
 871
 872                 if ( row1 ) nodes[nodes.length] = row1;
 873                 if ( row2 ) nodes[nodes.length] = row2;
 874                 nodelist[ spans[i].firstChild.nodeValue ] = nodes;
 875         }
 876
 877         var k = document.getElementById('allmessagesfilter');
 878         if (k) { k.style.display = ''; }
 879
 880         allmessages_nodelist = nodelist;
 881 }
 882
 883 hookEvent( "load", allmessagesfilter_init );
 884
 885 /*
 886         Written by Jonathan Snook, http://www.snook.ca/jonathan
 887         Add-ons by Robert Nyman, http://www.robertnyman.com
 888         Author says "The credit comment is all it takes, no license. Go crazy with it!:-)"
 889         From http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
 890 */
 891 function getElementsByClassName(oElm, strTagName, oClassNames){
 892         var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
 893         var arrReturnElements = new Array();
 894         var arrRegExpClassNames = new Array();
 895         if(typeof oClassNames == "object"){
 896                 for(var i=0; i<oClassNames.length; i++){
 897                         arrRegExpClassNames[arrRegExpClassNames.length] =
 898                                 new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)");
 899                 }
 900         }
 901         else{
 902                 arrRegExpClassNames[arrRegExpClassNames.length] =
 903                         new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)");
 904         }
 905         var oElement;
 906         var bMatchesAll;
 907         for(var j=0; j<arrElements.length; j++){
 908                 oElement = arrElements[j];
 909                 bMatchesAll = true;
 910                 for(var k=0; k<arrRegExpClassNames.length; k++){
 911                         if(!arrRegExpClassNames[k].test(oElement.className)){
 912                                 bMatchesAll = false;
 913                                 break;
 914                         }
 915                 }
 916                 if(bMatchesAll){
 917                         arrReturnElements[arrReturnElements.length] = oElement;
 918                 }
 919         }
 920         return (arrReturnElements)
 921 }
 922
 923 function redirectToFragment(fragment) {
 924         var match = navigator.userAgent.match(/AppleWebKit\/(\d+)/);
 925         if (match) {
 926                 var webKitVersion = parseInt(match[1]);
 927                 if (webKitVersion < 420) {
 928                         // Released Safari w/ WebKit 418.9.1 messes up horribly
 929                         // Nightlies of 420+ are ok
 930                         return;
 931                 }
 932         }
 933         if (is_gecko) {
 934                 // Mozilla needs to wait until after load, otherwise the window doesn't scroll
 935                 addOnloadHook(function () {
 936                         if (window.location.hash == "")
 937                                 window.location.hash = fragment;
 938                 });
 939         } else {
 940                 if (window.location.hash == "")
 941                         window.location.hash = fragment;
 942         }
 943 }
 944
 945 /*
 946  * Table sorting script  by Joost de Valk, check it out at http://www.joostdevalk.nl/code/sortable-table/.
 947  * Based on a script from http://www.kryogenix.org/code/browser/sorttable/.
 948  * Distributed under the MIT license: http://www.kryogenix.org/code/browser/licence.html .
 949  *
 950  * Copyright (c) 1997-2006 Stuart Langridge, Joost de Valk.
 951  *
 952  * @todo don't break on colspans/rowspans (bug 8028)
 953  * @todo language-specific digit grouping/decimals (bug 8063)
 954  * @todo support all accepted date formats (bug 8226)
 955  */
 956
 957 var ts_image_path = stylepath+"/common/images/";
 958 var ts_image_up = "sort_up.gif";
 959 var ts_image_down = "sort_down.gif";
 960 var ts_image_none = "sort_none.gif";
 961 var ts_europeandate = wgContentLanguage != "en"; // The non-American-inclined can change to "true"
 962 var ts_alternate_row_colors = true;
 963 var SORT_COLUMN_INDEX;
 964
 965 function sortables_init() {
 966         var idnum = 0;
 967         // Find all tables with class sortable and make them sortable
 968         var tables = getElementsByClassName(document, "table", "sortable");
 969         for (var ti = 0; ti < tables.length ; ti++) {
 970                 if (!tables[ti].id) {
 971                         tables[ti].setAttribute('id','sortable_table_id_'+idnum);
 972                         ++idnum;
 973                 }
 974                 ts_makeSortable(tables[ti]);
 975         }
 976 }
 977
 978 function ts_makeSortable(table) {
 979         var firstRow;
 980         if (table.rows && table.rows.length > 0) {
 981                 if (table.tHead && table.tHead.rows.length > 0) {
 982                         firstRow = table.tHead.rows[table.tHead.rows.length-1];
 983                 } else {
 984                         firstRow = table.rows[0];
 985                 }
 986         }
 987         if (!firstRow) return;
 988
 989         // We have a first row: assume it's the header, and make its contents clickable links
 990         for (var i = 0; i < firstRow.cells.length; i++) {
 991                 var cell = firstRow.cells[i];
 992                 if ((" "+cell.className+" ").indexOf(" unsortable ") == -1) {
 993                         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>';
 994                 }
 995         }
 996         if (ts_alternate_row_colors) {
 997                 ts_alternate(table);
 998         }
 999 }
1000
1001 function ts_getInnerText(el) {
1002         if (typeof el == "string") return el;
1003         if (typeof el == "undefined") { return el };
1004         if (el.textContent) return el.textContent; // not needed but it is faster
1005         if (el.innerText) return el.innerText;     // IE doesn't have textContent
1006         var str = "";
1007
1008         var cs = el.childNodes;
1009         var l = cs.length;
1010         for (var i = 0; i < l; i++) {
1011                 switch (cs[i].nodeType) {
1012                         case 1: //ELEMENT_NODE
1013                                 str += ts_getInnerText(cs[i]);
1014                                 break;
1015                         case 3: //TEXT_NODE
1016                                 str += cs[i].nodeValue;
1017                                 break;
1018                 }
1019         }
1020         return str;
1021 }
1022
1023 function ts_resortTable(lnk) {
1024         // get the span
1025         var span = lnk.getElementsByTagName('span')[0];
1026
1027         var td = lnk.parentNode;
1028         var tr = td.parentNode;
1029         var column = td.cellIndex;
1030
1031         var table = tr.parentNode;
1032         while (table && !(table.tagName && table.tagName.toLowerCase() == 'table'))
1033                 table = table.parentNode;
1034         if (!table) return;
1035
1036         // Work out a type for the column
1037         if (table.rows.length <= 1) return;
1038
1039         // Skip the first row if that's where the headings are
1040         var rowStart = (table.tHead && table.tHead.rows.length > 0 ? 0 : 1);
1041
1042         var itm = "";
1043         for (var i = rowStart; i < table.rows.length; i++) {
1044                 if (table.rows[i].cells.length > column) {
1045                         itm = ts_getInnerText(table.rows[i].cells[column]);
1046                         itm = itm.replace(/^[\s\xa0]+/, "").replace(/[\s\xa0]+$/, "");
1047                         if (itm != "") break;
1048                 }
1049         }
1050
1051         sortfn = ts_sort_caseinsensitive;
1052         if (itm.match(/^\d\d[\/. -][a-zA-Z]{3}[\/. -]\d\d\d\d$/))
1053                 sortfn = ts_sort_date;
1054         if (itm.match(/^\d\d[\/.-]\d\d[\/.-]\d\d\d\d$/))
1055                 sortfn = ts_sort_date;
1056         if (itm.match(/^\d\d[\/.-]\d\d[\/.-]\d\d$/))
1057                 sortfn = ts_sort_date;
1058         if (itm.match(/^[\u00a3$\u20ac]/)) // pound dollar euro
1059                 sortfn = ts_sort_currency;
1060         if (itm.match(/^[\d.,]+\%?$/))
1061                 sortfn = ts_sort_numeric;
1062
1063         var reverse = (span.getAttribute("sortdir") == 'down');
1064
1065         var newRows = new Array();
1066         for (var j = rowStart; j < table.rows.length; j++) {
1067                 var row = table.rows[j];
1068                 var keyText = ts_getInnerText(row.cells[column]);
1069                 var oldIndex = (reverse ? -j : j);
1070
1071                 newRows[newRows.length] = new Array(row, keyText, oldIndex);
1072         }
1073
1074         newRows.sort(sortfn);
1075
1076         var arrowHTML;
1077         if (reverse) {
1078                         arrowHTML = '<img src="'+ ts_image_path + ts_image_down + '" alt="&darr;"/>';
1079                         newRows.reverse();
1080                         span.setAttribute('sortdir','up');
1081         } else {
1082                         arrowHTML = '<img src="'+ ts_image_path + ts_image_up + '" alt="&uarr;"/>';
1083                         span.setAttribute('sortdir','down');
1084         }
1085
1086         // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
1087         // don't do sortbottom rows
1088         for (var i = 0; i < newRows.length; i++) {
1089                 if ((" "+newRows[i][0].className+" ").indexOf(" sortbottom ") == -1)
1090                         table.tBodies[0].appendChild(newRows[i][0]);
1091         }
1092         // do sortbottom rows only
1093         for (var i = 0; i < newRows.length; i++) {
1094                 if ((" "+newRows[i][0].className+" ").indexOf(" sortbottom ") != -1)
1095                         table.tBodies[0].appendChild(newRows[i][0]);
1096         }
1097
1098         // Delete any other arrows there may be showing
1099         var spans = getElementsByClassName(tr, "span", "sortarrow");
1100         for (var i = 0; i < spans.length; i++) {
1101                 spans[i].innerHTML = '<img src="'+ ts_image_path + ts_image_none + '" alt="&darr;"/>';
1102         }
1103         span.innerHTML = arrowHTML;
1104
1105         ts_alternate(table);
1106 }
1107
1108 function ts_dateToSortKey(date) {
1109         // y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
1110         if (date.length == 11) {
1111                 switch (date.substr(3,3).toLowerCase()) {
1112                         case "jan": var month = "01"; break;
1113                         case "feb": var month = "02"; break;
1114                         case "mar": var month = "03"; break;
1115                         case "apr": var month = "04"; break;
1116                         case "may": var month = "05"; break;
1117                         case "jun": var month = "06"; break;
1118                         case "jul": var month = "07"; break;
1119                         case "aug": var month = "08"; break;
1120                         case "sep": var month = "09"; break;
1121                         case "oct": var month = "10"; break;
1122                         case "nov": var month = "11"; break;
1123                         case "dec": var month = "12"; break;
1124                         // default: var month = "00";
1125                 }
1126                 return date.substr(7,4)+month+date.substr(0,2);
1127         } else if (date.length == 10) {
1128                 if (ts_europeandate == false) {
1129                         return date.substr(6,4)+date.substr(0,2)+date.substr(3,2);
1130                 } else {
1131                         return date.substr(6,4)+date.substr(3,2)+date.substr(0,2);
1132                 }
1133         } else if (date.length == 8) {
1134                 yr = date.substr(6,2);
1135                 if (parseInt(yr) < 50) {
1136                         yr = '20'+yr;
1137                 } else {
1138                         yr = '19'+yr;
1139                 }
1140                 if (ts_europeandate == true) {
1141                         return yr+date.substr(3,2)+date.substr(0,2);
1142                 } else {
1143                         return yr+date.substr(0,2)+date.substr(3,2);
1144                 }
1145         }
1146         return "00000000";
1147 }
1148
1149 function ts_parseFloat(num) {
1150         if (!num) return 0;
1151         num = parseFloat(num.replace(/,/g, ""));
1152         return (isNaN(num) ? 0 : num);
1153 }
1154
1155 function ts_sort_date(a,b) {
1156         var aa = ts_dateToSortKey(a[1]);
1157         var bb = ts_dateToSortKey(b[1]);
1158         return (aa < bb ? -1 : aa > bb ? 1 : a[2] - b[2]);
1159 }
1160
1161 function ts_sort_currency(a,b) {
1162         var aa = ts_parseFloat(a[1].replace(/[^0-9.]/g,''));
1163         var bb = ts_parseFloat(b[1].replace(/[^0-9.]/g,''));
1164         return (aa != bb ? aa - bb : a[2] - b[2]);
1165 }
1166
1167 function ts_sort_numeric(a,b) {
1168         var aa = ts_parseFloat(a[1]);
1169         var bb = ts_parseFloat(b[1]);
1170         return (aa != bb ? aa - bb : a[2] - b[2]);
1171 }
1172
1173 function ts_sort_caseinsensitive(a,b) {
1174         var aa = a[1].toLowerCase();
1175         var bb = b[1].toLowerCase();
1176         return (aa < bb ? -1 : aa > bb ? 1 : a[2] - b[2]);
1177 }
1178
1179 function ts_sort_default(a,b) {
1180         return (a[1] < b[1] ? -1 : a[1] > b[1] ? 1 : a[2] - b[2]);
1181 }
1182
1183 function ts_alternate(table) {
1184         // Take object table and get all it's tbodies.
1185         var tableBodies = table.getElementsByTagName("tbody");
1186         // Loop through these tbodies
1187         for (var i = 0; i < tableBodies.length; i++) {
1188                 // Take the tbody, and get all it's rows
1189                 var tableRows = tableBodies[i].getElementsByTagName("tr");
1190                 // Loop through these rows
1191                 // Start at 1 because we want to leave the heading row untouched
1192                 for (var j = 0; j < tableRows.length; j++) {
1193                         // Check if j is even, and apply classes for both possible results
1194                         var oldClasses = tableRows[j].className.split(" ");
1195                         var newClassName = "";
1196                         for (var k = 0; k < oldClasses.length; k++) {
1197                                 if (oldClasses[k] != "" && oldClasses[k] != "even" && oldClasses[k] != "odd")
1198                                         newClassName += oldClasses[k] + " ";
1199                         }
1200                         tableRows[j].className = newClassName + (j % 2 == 0 ? "even" : "odd");
1201                 }
1202         }
1203 }
1204
1205 /*
1206  * End of table sorting code
1207  */
1208
1209
1210 /**
1211  * Add a cute little box at the top of the screen to inform the user of
1212  * something, replacing any preexisting message.
1213  *
1214  * @param String message HTML to be put inside the right div
1215  * @param String className   Used in adding a class; should be different for each
1216  *   call to allow CSS/JS to hide different boxes.  null = no class used.
1217  * @return Boolean       True on success, false on failure
1218  */
1219 function jsMsg( message, className ) {
1220         if ( !document.getElementById ) {
1221                 return false;
1222         }
1223         // We special-case skin structures provided by the software.  Skins that
1224         // choose to abandon or significantly modify our formatting can just define
1225         // an mw-js-message div to start with.
1226         var messageDiv = document.getElementById( 'mw-js-message' );
1227         if ( !messageDiv ) {
1228                 messageDiv = document.createElement( 'div' );
1229                 if ( document.getElementById( 'column-content' )
1230                 && document.getElementById( 'content' ) ) {
1231                         // MonoBook, presumably
1232                         document.getElementById( 'content' ).insertBefore(
1233                                 messageDiv,
1234                                 document.getElementById( 'content' ).firstChild
1235                         );
1236                 } else if ( document.getElementById('content')
1237                 && document.getElementById( 'article' ) ) {
1238                         // Non-Monobook but still recognizable (old-style)
1239                         document.getElementById( 'article').insertBefore(
1240                                 messageDiv,
1241                                 document.getElementById( 'article' ).firstChild
1242                         );
1243                 } else {
1244                         return false;
1245                 }
1246         }
1247
1248         messageDiv.setAttribute( 'id', 'mw-js-message' );
1249         if( className ) {
1250                 messageDiv.setAttribute( 'class', 'mw-js-message-'+className );
1251         }
1252         messageDiv.innerHTML = message;
1253         return true;
1254 }
1255
1256 /**
1257  * Inject a cute little progress spinner after the specified element
1258  *
1259  * @param element Element to inject after
1260  * @param id Identifier string (for use with removeSpinner(), below)
1261  */
1262 function injectSpinner( element, id ) {
1263         var spinner = document.createElement( "img" );
1264         spinner.id = "mw-spinner-" + id;
1265         spinner.src = stylepath + "/common/images/spinner.gif";
1266         spinner.alt = spinner.title = "...";
1267         if( element.nextSibling ) {
1268                 element.parentNode.insertBefore( spinner, element.nextSibling );
1269         } else {
1270                 element.parentNode.appendChild( spinner );
1271         }
1272 }
1273
1274 /**
1275  * Remove a progress spinner added with injectSpinner()
1276  *
1277  * @param id Identifier string
1278  */
1279 function removeSpinner( id ) {
1280         var spinner = document.getElementById( "mw-spinner-" + id );
1281         if( spinner ) {
1282                 spinner.parentNode.removeChild( spinner );
1283         }
1284 }
1285
1286 function runOnloadHook() {
1287         // don't run anything below this for non-dom browsers
1288         if (doneOnloadHook || !(document.getElementById && document.getElementsByTagName)) {
1289                 return;
1290         }
1291
1292         // set this before running any hooks, since any errors below
1293         // might cause the function to terminate prematurely
1294         doneOnloadHook = true;
1295
1296         histrowinit();
1297         unhidetzbutton();
1298         tabbedprefs();
1299         updateTooltipAccessKeys( null );
1300         akeytt( null );
1301         scrollEditBox();
1302         setupCheckboxShiftClick();
1303         sortables_init();
1304
1305         // Run any added-on functions
1306         for (var i = 0; i < onloadFuncts.length; i++) {
1307                 onloadFuncts[i]();
1308         }
1309 }
1310
1311 /**
1312  * Add an event handler to an element
1313  *
1314  * @param Element element Element to add handler to
1315  * @param String attach Event to attach to
1316  * @param callable handler Event handler callback
1317  */
1318 function addHandler( element, attach, handler ) {
1319         if( window.addEventListener ) {
1320                 element.addEventListener( attach, handler, false );
1321         } else if( window.attachEvent ) {
1322                 element.attachEvent( 'on' + attach, handler );
1323         }
1324 }
1325
1326 /**
1327  * Add a click event handler to an element
1328  *
1329  * @param Element element Element to add handler to
1330  * @param callable handler Event handler callback
1331  */
1332 function addClickHandler( element, handler ) {
1333         addHandler( element, 'click', handler );
1334 }
1335 //note: all skins should call runOnloadHook() at the end of html output,
1336 //      so the below should be redundant. It's there just in case.
1337 hookEvent("load", runOnloadHook);
1338 hookEvent("load", mwSetupToolbar);