skins/common/wikibits.js

   1 // Wikipedia 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 if (clientPC.indexOf('opera') != -1) {
   9         var is_opera = true;
  10         var is_opera_preseven = (window.opera && !document.childNodes);
  11         var is_opera_seven = (window.opera && document.childNodes);
  12 }
  13
  14 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  15
  16 var doneOnloadHook;
  17
  18 if (!window.onloadFuncts)
  19         var onloadFuncts = [];
  20
  21 function addOnloadHook(hookFunct) {
  22         // Allows add-on scripts to add onload functions
  23         onloadFuncts[onloadFuncts.length] = hookFunct;
  24 }
  25
  26 function runOnloadHook() {
  27         // don't run anything below this for non-dom browsers
  28         if (doneOnloadHook || !(document.getElementById && document.getElementsByTagName))
  29                 return;
  30
  31         histrowinit();
  32         unhidetzbutton();
  33         tabbedprefs();
  34         akeytt();
  35         scrollEditBox();
  36         setupCheckboxShiftClick();
  37
  38         // Run any added-on functions
  39         for (var i = 0; i < onloadFuncts.length; i++)
  40                 onloadFuncts[i]();
  41
  42         doneOnloadHook = true;
  43 }
  44
  45 function hookEvent(hookName, hookFunct) {
  46         if (window.addEventListener)
  47                 addEventListener(hookName, hookFunct, false);
  48         else if (window.attachEvent)
  49                 attachEvent("on" + hookName, hookFunct);
  50 }
  51
  52 hookEvent("load", runOnloadHook);
  53
  54 // document.write special stylesheet links
  55 if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
  56         if (is_opera_preseven) {
  57                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');
  58         } else if (is_opera_seven) {
  59                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
  60         } else if (is_khtml) {
  61                 document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
  62         }
  63 }
  64 // Un-trap us from framesets
  65 if (window.top != window)
  66         window.top.location = window.location;
  67
  68 // for enhanced RecentChanges
  69 function toggleVisibility(_levelId, _otherId, _linkId) {
  70         var thisLevel = document.getElementById(_levelId);
  71         var otherLevel = document.getElementById(_otherId);
  72         var linkLevel = document.getElementById(_linkId);
  73         if (thisLevel.style.display == 'none') {
  74                 thisLevel.style.display = 'block';
  75                 otherLevel.style.display = 'none';
  76                 linkLevel.style.display = 'inline';
  77         } else {
  78                 thisLevel.style.display = 'none';
  79                 otherLevel.style.display = 'inline';
  80                 linkLevel.style.display = 'none';
  81         }
  82 }
  83
  84 // page history stuff
  85 // attach event handlers to the input elements on history page
  86 function histrowinit() {
  87         var hf = document.getElementById('pagehistory');
  88         if (!hf)
  89                 return;
  90         var lis = hf.getElementsByTagName('li');
  91         for (i = 0; i < lis.length; i++) {
  92                 var inputs = historyRadios(lis[i]);
  93                 if (inputs[0] && inputs[1]) {
  94                         inputs[0].onclick = diffcheck;
  95                         inputs[1].onclick = diffcheck;
  96                 }
  97         }
  98         diffcheck();
  99 }
 100
 101 function historyRadios(parent) {
 102         var inputs = parent.getElementsByTagName('input');
 103         var radios = [];
 104         for (var i = 0; i < inputs.length; i++) {
 105                 if (inputs[i].name == "diff" || inputs[i].name == "oldid")
 106                         radios[radios.length] = inputs[i];
 107         }
 108         return radios;
 109 }
 110
 111 // check selection and tweak visibility/class onclick
 112 function diffcheck() {
 113         var dli = false; // the li where the diff radio is checked
 114         var oli = false; // the li where the oldid radio is checked
 115         var hf = document.getElementById('pagehistory');
 116         if (!hf)
 117                 return;
 118         var lis = hf.getElementsByTagName('li');
 119         for (i=0;i<lis.length;i++) {
 120                 var inputs = historyRadios(lis[i]);
 121                 if (inputs[1] && inputs[0]) {
 122                         if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
 123                                 if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value)
 124                                         return false;
 125                                 if (oli) { // it's the second checked radio
 126                                         if (inputs[1].checked) {
 127                                                 oli.className = "selected";
 128                                                 return false
 129                                         }
 130                                 } else if (inputs[0].checked) {
 131                                         return false;
 132                                 }
 133                                 if (inputs[0].checked)
 134                                         dli = lis[i];
 135                                 if (!oli)
 136                                         inputs[0].style.visibility = 'hidden';
 137                                 if (dli)
 138                                         inputs[1].style.visibility = 'hidden';
 139                                 lis[i].className = "selected";
 140                                 oli = lis[i];
 141                         }  else { // no radio is checked in this row
 142                                 if (!oli)
 143                                         inputs[0].style.visibility = 'hidden';
 144                                 else
 145                                         inputs[0].style.visibility = 'visible';
 146                                 if (dli)
 147                                         inputs[1].style.visibility = 'hidden';
 148                                 else
 149                                         inputs[1].style.visibility = 'visible';
 150                                 lis[i].className = "";
 151                         }
 152                 }
 153         }
 154 }
 155
 156 // generate toc from prefs form, fold sections
 157 // XXX: needs testing on IE/Mac and safari
 158 // more comments to follow
 159 function tabbedprefs() {
 160         var prefform = document.getElementById('preferences');
 161         if (!prefform || !document.createElement)
 162                 return;
 163         if (prefform.nodeName.toLowerCase() == 'a')
 164                 return; // Occasional IE problem
 165         prefform.className = prefform.className + 'jsprefs';
 166         var sections = new Array();
 167         children = prefform.childNodes;
 168         var seci = 0;
 169         for (i = 0; i < children.length; i++) {
 170                 if (children[i].nodeName.toLowerCase() == 'fieldset') {
 171                         children[i].id = 'prefsection-' + seci;
 172                         children[i].className = 'prefsection';
 173                         if (is_opera || is_khtml)
 174                                 children[i].className = 'prefsection operaprefsection';
 175                         legends = children[i].getElementsByTagName('legend');
 176                         sections[seci] = new Object();
 177                         legends[0].className = 'mainLegend';
 178                         if (legends[0] && legends[0].firstChild.nodeValue)
 179                                 sections[seci].text = legends[0].firstChild.nodeValue;
 180                         else
 181                                 sections[seci].text = '# ' + seci;
 182                         sections[seci].secid = children[i].id;
 183                         seci++;
 184                         if (sections.length != 1)
 185                                 children[i].style.display = 'none';
 186                         else
 187                                 var selectedid = children[i].id;
 188                 }
 189         }
 190         var toc = document.createElement('ul');
 191         toc.id = 'preftoc';
 192         toc.selectedid = selectedid;
 193         for (i = 0; i < sections.length; i++) {
 194                 var li = document.createElement('li');
 195                 if (i == 0)
 196                         li.className = 'selected';
 197                 var a = document.createElement('a');
 198                 a.href = '#' + sections[i].secid;
 199                 a.onmousedown = a.onclick = uncoversection;
 200                 a.appendChild(document.createTextNode(sections[i].text));
 201                 a.secid = sections[i].secid;
 202                 li.appendChild(a);
 203                 toc.appendChild(li);
 204         }
 205         prefform.parentNode.insertBefore(toc, prefform.parentNode.childNodes[0]);
 206         document.getElementById('prefsubmit').id = 'prefcontrol';
 207 }
 208
 209 function uncoversection() {
 210         oldsecid = this.parentNode.parentNode.selectedid;
 211         newsec = document.getElementById(this.secid);
 212         if (oldsecid != this.secid) {
 213                 ul = document.getElementById('preftoc');
 214                 document.getElementById(oldsecid).style.display = 'none';
 215                 newsec.style.display = 'block';
 216                 ul.selectedid = this.secid;
 217                 lis = ul.getElementsByTagName('li');
 218                 for (i = 0; i< lis.length; i++) {
 219                         lis[i].className = '';
 220                 }
 221                 this.parentNode.className = 'selected';
 222         }
 223         return false;
 224 }
 225
 226 // Timezone stuff
 227 // tz in format [+-]HHMM
 228 function checkTimezone(tz, msg) {
 229         var localclock = new Date();
 230         // returns negative offset from GMT in minutes
 231         var tzRaw = localclock.getTimezoneOffset();
 232         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 233         var tzMin = Math.abs(tzRaw) % 60;
 234         var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
 235         if (tz != tzString) {
 236                 var junk = msg.split('$1');
 237                 document.write(junk[0] + "UTC" + tzString + junk[1]);
 238         }
 239 }
 240
 241 function unhidetzbutton() {
 242         tzb = document.getElementById('guesstimezonebutton')
 243         if (tzb)
 244                 tzb.style.display = 'inline';
 245 }
 246
 247 // in [-]HH:MM format...
 248 // won't yet work with non-even tzs
 249 function fetchTimezone() {
 250         // FIXME: work around Safari bug
 251         var localclock = new Date();
 252         // returns negative offset from GMT in minutes
 253         var tzRaw = localclock.getTimezoneOffset();
 254         var tzHour = Math.floor( Math.abs(tzRaw) / 60);
 255         var tzMin = Math.abs(tzRaw) % 60;
 256         var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
 257                 ":" + ((tzMin < 10) ? "0" : "") + tzMin;
 258         return tzString;
 259 }
 260
 261 function guessTimezone(box) {
 262         document.getElementsByName("wpHourDiff")[0].value = fetchTimezone();
 263 }
 264
 265 function showTocToggle() {
 266         if (document.createTextNode) {
 267                 // Uses DOM calls to avoid document.write + XHTML issues
 268
 269                 var linkHolder = document.getElementById('toctitle')
 270                 if (!linkHolder)
 271                         return;
 272
 273                 var outerSpan = document.createElement('span');
 274                 outerSpan.className = 'toctoggle';
 275
 276                 var toggleLink = document.createElement('a');
 277                 toggleLink.id = 'togglelink';
 278                 toggleLink.className = 'internal';
 279                 toggleLink.href = 'javascript:toggleToc()';
 280                 toggleLink.appendChild(document.createTextNode(tocHideText));
 281
 282                 outerSpan.appendChild(document.createTextNode('['));
 283                 outerSpan.appendChild(toggleLink);
 284                 outerSpan.appendChild(document.createTextNode(']'));
 285
 286                 linkHolder.appendChild(document.createTextNode(' '));
 287                 linkHolder.appendChild(outerSpan);
 288
 289                 var cookiePos = document.cookie.indexOf("hidetoc=");
 290                 if (cookiePos > -1 && document.cookie.charAt(cookiePos + 8) == 1)
 291                         toggleToc();
 292         }
 293 }
 294
 295 function changeText(el, newText) {
 296         // Safari work around
 297         if (el.innerText)
 298                 el.innerText = newText;
 299         else if (el.firstChild && el.firstChild.nodeValue)
 300                 el.firstChild.nodeValue = newText;
 301 }
 302
 303 function toggleToc() {
 304         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 305         var toggleLink = document.getElementById('togglelink')
 306
 307         if (toc && toggleLink && toc.style.display == 'none') {
 308                 changeText(toggleLink, tocHideText);
 309                 toc.style.display = 'block';
 310                 document.cookie = "hidetoc=0";
 311         } else {
 312                 changeText(toggleLink, tocShowText);
 313                 toc.style.display = 'none';
 314                 document.cookie = "hidetoc=1";
 315         }
 316 }
 317
 318 mwEditButtons = [];
 319 mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 320
 321 // this function generates the actual toolbar buttons with localized text
 322 // we use it to avoid creating the toolbar where javascript is not enabled
 323 function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
 324         // Don't generate buttons for browsers which don't fully
 325         // support it.
 326         mwEditButtons[mwEditButtons.length] =
 327                 {"imageFile": imageFile,
 328                  "speedTip": speedTip,
 329                  "tagOpen": tagOpen,
 330                  "tagClose": tagClose,
 331                  "sampleText": sampleText};
 332 }
 333
 334 // this function generates the actual toolbar buttons with localized text
 335 // we use it to avoid creating the toolbar where javascript is not enabled
 336 function mwInsertEditButton(parent, item) {
 337         var image = document.createElement("img");
 338         image.width = 23;
 339         image.height = 22;
 340         image.src = item.imageFile;
 341         image.border = 0;
 342         image.alt = item.speedTip;
 343         image.title = item.speedTip;
 344         image.style.cursor = "pointer";
 345         image.onclick = function() {
 346                 insertTags(item.tagOpen, item.tagClose, item.sampleText);
 347                 return false;
 348         }
 349
 350         parent.appendChild(image);
 351 }
 352
 353 function mwSetupToolbar() {
 354         var toolbar = document.getElementById('toolbar');
 355         if (!toolbar) return false;
 356
 357         var textbox = document.getElementById('wpTextbox1');
 358         if (!textbox) return false;
 359
 360         // Don't generate buttons for browsers which don't fully
 361         // support it.
 362         if (!document.selection && textbox.selectionStart == null)
 363                 return false;
 364
 365         for (var i in mwEditButtons) {
 366                 mwInsertEditButton(toolbar, mwEditButtons[i]);
 367         }
 368         for (var i in mwCustomEditButtons) {
 369                 mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
 370         }
 371 }
 372
 373 function escapeQuotes(text) {
 374         var re = new RegExp("'","g");
 375         text = text.replace(re,"\\'");
 376         re = new RegExp("\\n","g");
 377         text = text.replace(re,"\\n");
 378         return escapeQuotesHTML(text);
 379 }
 380
 381 function escapeQuotesHTML(text) {
 382         var re = new RegExp('&',"g");
 383         text = text.replace(re,"&amp;");
 384         var re = new RegExp('"',"g");
 385         text = text.replace(re,"&quot;");
 386         var re = new RegExp('<',"g");
 387         text = text.replace(re,"&lt;");
 388         var re = new RegExp('>',"g");
 389         text = text.replace(re,"&gt;");
 390         return text;
 391 }
 392
 393 // apply tagOpen/tagClose to selection in textarea,
 394 // use sampleText instead of selection if there is none
 395 // copied and adapted from phpBB
 396 function insertTags(tagOpen, tagClose, sampleText) {
 397         if (document.editform)
 398                 var txtarea = document.editform.wpTextbox1;
 399         else {
 400                 // some alternate form? take the first one we can find
 401                 var areas = document.getElementsByTagName('textarea');
 402                 var txtarea = areas[0];
 403         }
 404
 405         // IE
 406         if (document.selection  && !is_gecko) {
 407                 var theSelection = document.selection.createRange().text;
 408                 if (!theSelection)
 409                         theSelection=sampleText;
 410                 txtarea.focus();
 411                 if (theSelection.charAt(theSelection.length - 1) == " ") { // exclude ending space char, if any
 412                         theSelection = theSelection.substring(0, theSelection.length - 1);
 413                         document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
 414                 } else {
 415                         document.selection.createRange().text = tagOpen + theSelection + tagClose;
 416                 }
 417
 418         // Mozilla
 419         } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
 420                 var replaced = false;
 421                 var startPos = txtarea.selectionStart;
 422                 var endPos = txtarea.selectionEnd;
 423                 if (endPos-startPos)
 424                         replaced = true;
 425                 var scrollTop = txtarea.scrollTop;
 426                 var myText = (txtarea.value).substring(startPos, endPos);
 427                 if (!myText)
 428                         myText=sampleText;
 429                 if (myText.charAt(myText.length - 1) == " ") { // exclude ending space char, if any
 430                         subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
 431                 } else {
 432                         subst = tagOpen + myText + tagClose;
 433                 }
 434                 txtarea.value = txtarea.value.substring(0, startPos) + subst +
 435                         txtarea.value.substring(endPos, txtarea.value.length);
 436                 txtarea.focus();
 437                 //set new selection
 438                 if (replaced) {
 439                         var cPos = startPos+(tagOpen.length+myText.length+tagClose.length);
 440                         txtarea.selectionStart = cPos;
 441                         txtarea.selectionEnd = cPos;
 442                 } else {
 443                         txtarea.selectionStart = startPos+tagOpen.length;
 444                         txtarea.selectionEnd = startPos+tagOpen.length+myText.length;
 445                 }
 446                 txtarea.scrollTop = scrollTop;
 447
 448         // All other browsers get no toolbar.
 449         // There was previously support for a crippled "help"
 450         // bar, but that caused more problems than it solved.
 451         }
 452         // reposition cursor if possible
 453         if (txtarea.createTextRange)
 454                 txtarea.caretPos = document.selection.createRange().duplicate();
 455 }
 456
 457 function akeytt() {
 458         if (typeof ta == "undefined" || !ta)
 459                 return;
 460         var pref = 'alt-';
 461         if (is_safari || navigator.userAgent.toLowerCase().indexOf('mac') + 1
 462                 || navigator.userAgent.toLowerCase().indexOf('konqueror') + 1 )
 463                 pref = 'control-';
 464         if (is_opera)
 465                 pref = 'shift-esc-';
 466
 467         for (var id in ta) {
 468                 var n = document.getElementById(id);
 469                 if (n) {
 470                         var a = null;
 471                         var ak = '';
 472                         // Are we putting accesskey in it
 473                         if (ta[id][0].length > 0) {
 474                                 // Is this object a object? If not assume it's the next child.
 475
 476                                 if (n.nodeName.toLowerCase() == "a") {
 477                                         a = n;
 478                                 } else {
 479                                         a = n.childNodes[0];
 480                                 }
 481
 482                                 if (a) {
 483                                         a.accessKey = ta[id][0];
 484                                         ak = ' ['+pref+ta[id][0]+']';
 485                                 }
 486                         } else {
 487                                 // We don't care what type the object is when assigning tooltip
 488                                 a = n;
 489                                 ak = '';
 490                         }
 491
 492                         if (a) {
 493                                 a.title = ta[id][1]+ak;
 494                         }
 495                 }
 496         }
 497 }
 498
 499 function setupRightClickEdit() {
 500         if (document.getElementsByTagName) {
 501                 var divs = document.getElementsByTagName('div');
 502                 for (var i = 0; i < divs.length; i++) {
 503                         var el = divs[i];
 504                         if(el.className == 'editsection') {
 505                                 addRightClickEditHandler(el);
 506                         }
 507                 }
 508         }
 509 }
 510
 511 function addRightClickEditHandler(el) {
 512         for (var i = 0; i < el.childNodes.length; i++) {
 513                 var link = el.childNodes[i];
 514                 if (link.nodeType == 1 && link.nodeName.toLowerCase() == 'a') {
 515                         var editHref = link.getAttribute('href');
 516
 517                         // find the following a
 518                         var next = el.nextSibling;
 519                         while (next.nodeType != 1)
 520                                 next = next.nextSibling;
 521
 522                         // find the following header
 523                         next = next.nextSibling;
 524                         while (next.nodeType != 1)
 525                                 next = next.nextSibling;
 526
 527                         if (next && next.nodeType == 1 &&
 528                                 next.nodeName.match(/^[Hh][1-6]$/)) {
 529                                 next.oncontextmenu = function() {
 530                                         document.location = editHref;
 531                                         return false;
 532                                 }
 533                         }
 534                 }
 535         }
 536 }
 537
 538 function setupCheckboxShiftClick() {
 539         if (document.getElementsByTagName) {
 540                 var uls = document.getElementsByTagName('ul');
 541                 var len = uls.length;
 542                 for (var i = 0; i < len; ++i) {
 543                         addCheckboxClickHandlers(uls[i]);
 544                 }
 545         }
 546 }
 547
 548 function addCheckboxClickHandlers(ul, start, finish) {
 549         if (ul.checkboxHandlersTimer) {
 550                 clearInterval(ul.checkboxHandlersTimer);
 551         }
 552         if ( !ul.childNodes ) {
 553                 return;
 554         }
 555         var len = ul.childNodes.length;
 556         if (len < 2) {
 557                 return;
 558         }
 559         start = start || 0;
 560         finish = finish || start + 250;
 561         if ( finish > len ) { finish = len; }
 562         ul.checkboxes = ul.checkboxes || [];
 563         ul.lastCheckbox = ul.lastCheckbox || null;
 564         for (var i = start; i<finish; ++i) {
 565                 var child = ul.childNodes[i];
 566                 if ( child && child.childNodes && child.childNodes[0] ) {
 567                         var cb = child.childNodes[0];
 568                         if ( !cb.nodeName || cb.nodeName.toLowerCase() != 'input' ||
 569                              !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
 570                                 return;
 571                         }
 572                         cb.index = ul.checkboxes.push(cb) - 1;
 573                         cb.container = ul;
 574                         cb.onmouseup = checkboxMouseupHandler;
 575                 }
 576         }
 577         if (finish < len) {
 578           var f=function(){ addCheckboxClickHandlers(ul, finish, finish+250); };
 579           ul.checkboxHandlersTimer=setInterval(f, 200);
 580         }
 581 }
 582
 583 function checkboxMouseupHandler(e) {
 584         if (typeof e == 'undefined') {
 585                 e = window.event;
 586         }
 587         if ( !e.shiftKey || this.container.lastCheckbox === null ) {
 588                 this.container.lastCheckbox = this.index;
 589                 return true;
 590         }
 591         var endState = !this.checked;
 592         if ( is_opera ) { // opera has already toggled the checkbox by this point
 593                 endState = !endState;
 594         }
 595         var start, finish;
 596         if ( this.index < this.container.lastCheckbox ) {
 597                 start = this.index + 1;
 598                 finish = this.container.lastCheckbox;
 599         } else {
 600                 start = this.container.lastCheckbox;
 601                 finish = this.index - 1;
 602         }
 603         for (var i = start; i <= finish; ++i ) {
 604                 this.container.checkboxes[i].checked = endState;
 605         }
 606         this.container.lastCheckbox = this.index;
 607         return true;
 608 }
 609
 610 function fillDestFilename() {
 611         if (!document.getElementById)
 612                 return;
 613         var path = document.getElementById('wpUploadFile').value;
 614         // Find trailing part
 615         var slash = path.lastIndexOf('/');
 616         var backslash = path.lastIndexOf('\\');
 617         var fname;
 618         if (slash == -1 && backslash == -1) {
 619                 fname = path;
 620         } else if (slash > backslash) {
 621                 fname = path.substring(slash+1, 10000);
 622         } else {
 623                 fname = path.substring(backslash+1, 10000);
 624         }
 625
 626         // Capitalise first letter and replace spaces by underscores
 627         fname = fname.charAt(0).toUpperCase().concat(fname.substring(1,10000)).replace(/ /g, '_');
 628
 629         // Output result
 630         var destFile = document.getElementById('wpDestFile');
 631         if (destFile)
 632                 destFile.value = fname;
 633 }
 634
 635
 636 function considerChangingExpiryFocus() {
 637         if (!document.getElementById)
 638                 return;
 639         var drop = document.getElementById('wpBlockExpiry');
 640         if (!drop)
 641                 return;
 642         var field = document.getElementById('wpBlockOther');
 643         if (!field)
 644                 return;
 645         var opt = drop.value;
 646         if (opt == 'other')
 647                 field.style.display = '';
 648         else
 649                 field.style.display = 'none';
 650 }
 651
 652 function scrollEditBox() {
 653         var editBoxEl = document.getElementById("wpTextbox1");
 654         var scrollTopEl = document.getElementById("wpScrolltop");
 655         var editFormEl = document.getElementById("editform");
 656
 657         if (editBoxEl && scrollTopEl) {
 658                 if (scrollTopEl.value) editBoxEl.scrollTop = scrollTopEl.value;
 659                 editFormEl.onsubmit = function() {
 660                         document.getElementById("wpScrolltop").value = document.getElementById("wpTextbox1").scrollTop;
 661                 }
 662         }
 663 }
 664
 665 hookEvent("load", scrollEditBox);
 666
 667 function allmessagesfilter() {
 668         text = document.getElementById('allmessagesinput').value;
 669         k = document.getElementById('allmessagestable');
 670         if (!k) { return;}
 671
 672         var items = k.getElementsByTagName('span');
 673
 674         if ( text.length > allmessages_prev.length ) {
 675                 for (var i = items.length-1, j = 0; i >= 0; i--) {
 676                         j = allmessagesforeach(items, i, j);
 677                 }
 678         } else {
 679                 for (var i = 0, j = 0; i < items.length; i++) {
 680                         j = allmessagesforeach(items, i, j);
 681                 }
 682         }
 683         allmessages_prev = text;
 684 }
 685
 686 function allmessagesforeach(items, i, j) {
 687         var hItem = items[i].getAttribute('id');
 688         if (hItem.substring(0,17) == 'sp-allmessages-i-') {
 689                 if (items[i].firstChild && items[i].firstChild.nodeName == '#text' && items[i].firstChild.nodeValue.indexOf(text) != -1) {
 690                         var itemA = document.getElementById( hItem.replace('i', 'r1') );
 691                         var itemB = document.getElementById( hItem.replace('i', 'r2') );
 692                         if ( itemA.style.display != '' ) {
 693                                 var s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", '')";
 694                                 var k = window.setTimeout(s,j++*5);
 695                         }
 696                 } else {
 697                         var itemA = document.getElementById( hItem.replace('i', 'r1') );
 698                         var itemB = document.getElementById( hItem.replace('i', 'r2') );
 699                         if ( itemA.style.display != 'none' ) {
 700                                 var s = "allmessageshider(\"" + hItem.replace('i', 'r1') + "\", \"" + hItem.replace('i', 'r2') + "\", 'none')";
 701                                 var k = window.setTimeout(s,j++*5);
 702                         }
 703                 }
 704         }
 705         return j;
 706 }
 707
 708
 709 function allmessageshider(idA, idB, cstyle) {
 710         var itemA = document.getElementById( idA );
 711         var itemB = document.getElementById( idB );
 712         if (itemA) { itemA.style.display = cstyle; }
 713         if (itemB) { itemB.style.display = cstyle; }
 714 }
 715
 716 function allmessagesmodified() {
 717         allmessages_modified = !allmessages_modified;
 718         k = document.getElementById('allmessagestable');
 719         if (!k) { return;}
 720         var items = k.getElementsByTagName('tr');
 721         for (var i = 0, j = 0; i< items.length; i++) {
 722                 if (!allmessages_modified ) {
 723                         if ( items[i].style.display != '' ) {
 724                                 var s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, '')";
 725                                 var k = window.setTimeout(s,j++*5);
 726                         }
 727                 } else if (items[i].getAttribute('class') == 'def' && allmessages_modified) {
 728                         if ( items[i].style.display != 'none' ) {
 729                                 var s = "allmessageshider(\"" + items[i].getAttribute('id') + "\", null, 'none')";
 730                                 var k = window.setTimeout(s,j++*5);
 731                         }
 732                 }
 733         }
 734 }
 735
 736 function allmessagesshow() {
 737         k = document.getElementById('allmessagesfilter');
 738         if (k) { k.style.display = ''; }
 739
 740         allmessages_prev = '';
 741         allmessages_modified = false;
 742 }
 743
 744 hookEvent("load", allmessagesshow);
 745 hookEvent("load", mwSetupToolbar);