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 webkit_match = clientPC.match(/applewebkit\/(\d+)/);
   7 if (webkit_match) {
   8         var is_safari = clientPC.indexOf('applewebkit') != -1 &&
   9                 clientPC.indexOf('spoofer') == -1;
  10         var is_safari_win = is_safari && clientPC.indexOf('windows') != -1;
  11         var webkit_version = parseInt(webkit_match[1]);
  12 }
  13 // For accesskeys; note that FF3+ is included here!
  14 var is_ff2 = /firefox\/[2-9]|minefield\/3/.test( clientPC );
  15 var ff2_bugs = /firefox\/2/.test( clientPC );
  16 // These aren't used here, but some custom scripts rely on them
  17 var is_ff2_win = is_ff2 && clientPC.indexOf('windows') != -1;
  18 var is_ff2_x11 = is_ff2 && clientPC.indexOf('x11') != -1;
  19 if (clientPC.indexOf('opera') != -1) {
  20         var is_opera = true;
  21         var is_opera_preseven = window.opera && !document.childNodes;
  22         var is_opera_seven = window.opera && document.childNodes;
  23         var is_opera_95 = /opera\/(9\.[5-9]|[1-9][0-9])/.test( clientPC );
  24         var opera6_bugs = is_opera_preseven;
  25         var opera7_bugs = is_opera_seven && !is_opera_95;
  26         var opera95_bugs = /opera\/(9\.5)/.test( clientPC );
  27 }
  28 // As recommended by <http://msdn.microsoft.com/en-us/library/ms537509.aspx>,
  29 // avoiding false positives from moronic extensions that append to the IE UA
  30 // string (bug 23171)
  31 var ie6_bugs = false;
  32 if ( /MSIE ([0-9]{1,}[\.0-9]{0,})/.exec( clientPC ) != null
  33 && parseFloat( RegExp.$1 ) <= 6.0 ) {
  34         ie6_bugs = true;
  35 }
  36
  37 // Global external objects used by this script.
  38 /*extern ta, stylepath, skin */
  39
  40 // add any onload functions in this hook (please don't hard-code any events in the xhtml source)
  41 var doneOnloadHook;
  42
  43 if (!window.onloadFuncts) {
  44         var onloadFuncts = [];
  45 }
  46
  47 function addOnloadHook( hookFunct ) {
  48         // Allows add-on scripts to add onload functions
  49         if( !doneOnloadHook ) {
  50                 onloadFuncts[onloadFuncts.length] = hookFunct;
  51         } else {
  52                 hookFunct();  // bug in MSIE script loading
  53         }
  54 }
  55
  56 function hookEvent( hookName, hookFunct ) {
  57         addHandler( window, hookName, hookFunct );
  58 }
  59
  60 function importScript( page ) {
  61         // TODO: might want to introduce a utility function to match wfUrlencode() in PHP
  62         var uri = wgScript + '?title=' +
  63                 encodeURIComponent(page.replace(/ /g,'_')).replace(/%2F/ig,'/').replace(/%3A/ig,':') +
  64                 '&action=raw&ctype=text/javascript';
  65         return importScriptURI( uri );
  66 }
  67
  68 var loadedScripts = {}; // included-scripts tracker
  69 function importScriptURI( url ) {
  70         if ( loadedScripts[url] ) {
  71                 return null;
  72         }
  73         loadedScripts[url] = true;
  74         var s = document.createElement( 'script' );
  75         s.setAttribute( 'src', url );
  76         s.setAttribute( 'type', 'text/javascript' );
  77         document.getElementsByTagName('head')[0].appendChild( s );
  78         return s;
  79 }
  80
  81 function importStylesheet( page ) {
  82         return importStylesheetURI( wgScript + '?action=raw&ctype=text/css&title=' + encodeURIComponent( page.replace(/ /g,'_') ) );
  83 }
  84
  85 function importStylesheetURI( url, media ) {
  86         var l = document.createElement( 'link' );
  87         l.type = 'text/css';
  88         l.rel = 'stylesheet';
  89         l.href = url;
  90         if( media ) {
  91                 l.media = media;
  92         }
  93         document.getElementsByTagName('head')[0].appendChild( l );
  94         return l;
  95 }
  96
  97 function appendCSS( text ) {
  98         var s = document.createElement( 'style' );
  99         s.type = 'text/css';
 100         s.rel = 'stylesheet';
 101         if ( s.styleSheet ) {
 102                 s.styleSheet.cssText = text; // IE
 103         } else {
 104                 s.appendChild( document.createTextNode( text + '' ) ); // Safari sometimes borks on null
 105         }
 106         document.getElementsByTagName('head')[0].appendChild( s );
 107         return s;
 108 }
 109
 110 // Special stylesheet links for Monobook only (see bug 14717)
 111 if ( typeof stylepath != 'undefined' && skin == 'monobook' ) {
 112         if ( opera6_bugs ) {
 113                 importStylesheetURI( stylepath + '/' + skin + '/Opera6Fixes.css' );
 114         } else if ( opera7_bugs ) {
 115                 importStylesheetURI( stylepath + '/' + skin + '/Opera7Fixes.css' );
 116         } else if ( opera95_bugs ) {
 117                 importStylesheetURI( stylepath + '/' + skin + '/Opera9Fixes.css' );
 118         } else if ( ff2_bugs ) {
 119                 importStylesheetURI( stylepath + '/' + skin + '/FF2Fixes.css' );
 120         }
 121 }
 122
 123
 124 if ( wgBreakFrames ) {
 125         // Un-trap us from framesets
 126         if ( window.top != window ) {
 127                 window.top.location = window.location;
 128         }
 129 }
 130
 131 function showTocToggle() {
 132         if ( document.createTextNode ) {
 133                 // Uses DOM calls to avoid document.write + XHTML issues
 134
 135                 var linkHolder = document.getElementById( 'toctitle' );
 136                 var existingLink = document.getElementById( 'togglelink' );
 137                 if ( !linkHolder || existingLink ) {
 138                         // Don't add the toggle link twice
 139                         return;
 140                 }
 141
 142                 var outerSpan = document.createElement( 'span' );
 143                 outerSpan.className = 'toctoggle';
 144
 145                 var toggleLink = document.createElement( 'a' );
 146                 toggleLink.id = 'togglelink';
 147                 toggleLink.className = 'internal';
 148                 toggleLink.href = '#';
 149                 toggleLink.onclick = toggleToc;
 150
 151                 toggleLink.appendChild( document.createTextNode( tocHideText ) );
 152
 153                 outerSpan.appendChild( document.createTextNode( '[' ) );
 154                 outerSpan.appendChild( toggleLink );
 155                 outerSpan.appendChild( document.createTextNode( ']' ) );
 156
 157                 linkHolder.appendChild( document.createTextNode( ' ' ) );
 158                 linkHolder.appendChild( outerSpan );
 159
 160                 var cookiePos = document.cookie.indexOf( "hidetoc=" );
 161                 if ( cookiePos > -1 && document.cookie.charAt( cookiePos + 8 ) == 1 ) {
 162                         toggleToc();
 163                 }
 164         }
 165 }
 166
 167 function changeText( el, newText ) {
 168         // Safari work around
 169         if ( el.innerText ) {
 170                 el.innerText = newText;
 171         } else if ( el.firstChild && el.firstChild.nodeValue ) {
 172                 el.firstChild.nodeValue = newText;
 173         }
 174 }
 175
 176 function toggleToc() {
 177         var tocmain = document.getElementById( 'toc' );
 178         var toc = document.getElementById('toc').getElementsByTagName('ul')[0];
 179         var toggleLink = document.getElementById( 'togglelink' );
 180
 181         if ( toc && toggleLink && toc.style.display == 'none' ) {
 182                 changeText( toggleLink, tocHideText );
 183                 toc.style.display = 'block';
 184                 document.cookie = "hidetoc=0";
 185                 tocmain.className = 'toc';
 186         } else {
 187                 changeText( toggleLink, tocShowText );
 188                 toc.style.display = 'none';
 189                 document.cookie = "hidetoc=1";
 190                 tocmain.className = 'toc tochidden';
 191         }
 192         return false;
 193 }
 194
 195 var mwEditButtons = [];
 196 var mwCustomEditButtons = []; // eg to add in MediaWiki:Common.js
 197
 198 function escapeQuotes( text ) {
 199         var re = new RegExp( "'", "g" );
 200         text = text.replace( re, "\\'" );
 201         re = new RegExp( "\\n", "g" );
 202         text = text.replace( re, "\\n" );
 203         return escapeQuotesHTML( text );
 204 }
 205
 206 function escapeQuotesHTML( text ) {
 207         var re = new RegExp( '&', "g" );
 208         text = text.replace( re, "&amp;" );
 209         re = new RegExp( '"', "g" );
 210         text = text.replace( re, "&quot;" );
 211         re = new RegExp( '<', "g" );
 212         text = text.replace( re, "&lt;" );
 213         re = new RegExp( '>', "g" );
 214         text = text.replace( re, "&gt;" );
 215         return text;
 216 }
 217
 218 /**
 219  * Set the accesskey prefix based on browser detection.
 220  */
 221 var tooltipAccessKeyPrefix = 'alt-';
 222 if ( is_opera ) {
 223         tooltipAccessKeyPrefix = 'shift-esc-';
 224 } else if ( !is_safari_win && is_safari && webkit_version > 526 ) {
 225         tooltipAccessKeyPrefix = 'ctrl-alt-';
 226 } else if ( !is_safari_win && ( is_safari
 227                 || clientPC.indexOf('mac') != -1
 228                 || clientPC.indexOf('konqueror') != -1 ) ) {
 229         tooltipAccessKeyPrefix = 'ctrl-';
 230 } else if ( is_ff2 ) {
 231         tooltipAccessKeyPrefix = 'alt-shift-';
 232 }
 233 var tooltipAccessKeyRegexp = /\[(ctrl-)?(alt-)?(shift-)?(esc-)?(.)\]$/;
 234
 235 /**
 236  * Add the appropriate prefix to the accesskey shown in the tooltip.
 237  * If the nodeList parameter is given, only those nodes are updated;
 238  * otherwise, all the nodes that will probably have accesskeys by
 239  * default are updated.
 240  *
 241  * @param Array nodeList -- list of elements to update
 242  */
 243 function updateTooltipAccessKeys( nodeList ) {
 244         if ( !nodeList ) {
 245                 // Rather than scan all links on the whole page, we can just scan these
 246                 // containers which contain the relevant links. This is really just an
 247                 // optimization technique.
 248                 var linkContainers = [
 249                         'column-one', // Monobook and Modern
 250                         'head', 'panel', 'p-logo' // Vector
 251                 ];
 252                 for ( var i in linkContainers ) {
 253                         var linkContainer = document.getElementById( linkContainers[i] );
 254                         if ( linkContainer ) {
 255                                 updateTooltipAccessKeys( linkContainer.getElementsByTagName( 'a' ) );
 256                         }
 257                 }
 258                 // these are rare enough that no such optimization is needed
 259                 updateTooltipAccessKeys( document.getElementsByTagName( 'input' ) );
 260                 updateTooltipAccessKeys( document.getElementsByTagName( 'label' ) );
 261                 return;
 262         }
 263
 264         for ( var i = 0; i < nodeList.length; i++ ) {
 265                 var element = nodeList[i];
 266                 var tip = element.getAttribute( 'title' );
 267                 if ( tip && tooltipAccessKeyRegexp.exec( tip ) ) {
 268                         tip = tip.replace(tooltipAccessKeyRegexp,
 269                                           '[' + tooltipAccessKeyPrefix + "$5]");
 270                         element.setAttribute( 'title', tip );
 271                 }
 272         }
 273 }
 274
 275 /**
 276  * Add a link to one of the portlet menus on the page, including:
 277  *
 278  * p-cactions: Content actions (shown as tabs above the main content in Monobook)
 279  * p-personal: Personal tools (shown at the top right of the page in Monobook)
 280  * p-navigation: Navigation
 281  * p-tb: Toolbox
 282  *
 283  * This function exists for the convenience of custom JS authors.  All
 284  * but the first three parameters are optional, though providing at
 285  * least an id and a tooltip is recommended.
 286  *
 287  * By default the new link will be added to the end of the list.  To
 288  * add the link before a given existing item, pass the DOM node of
 289  * that item (easily obtained with document.getElementById()) as the
 290  * nextnode parameter; to add the link _after_ an existing item, pass
 291  * the node's nextSibling instead.
 292  *
 293  * @param String portlet -- id of the target portlet ("p-cactions", "p-personal", "p-navigation" or "p-tb")
 294  * @param String href -- link URL
 295  * @param String text -- link text (will be automatically lowercased by CSS for p-cactions in Monobook)
 296  * @param String id -- id of the new item, should be unique and preferably have the appropriate prefix ("ca-", "pt-", "n-" or "t-")
 297  * @param String tooltip -- text to show when hovering over the link, without accesskey suffix
 298  * @param String accesskey -- accesskey to activate this link (one character, try to avoid conflicts)
 299  * @param Node nextnode -- the DOM node before which the new item should be added, should be another item in the same list
 300  *
 301  * @return Node -- the DOM node of the new item (an LI element) or null
 302  */
 303 function addPortletLink( portlet, href, text, id, tooltip, accesskey, nextnode ) {
 304         var root = document.getElementById( portlet );
 305         if ( !root ) {
 306                 return null;
 307         }
 308         var node = root.getElementsByTagName( 'ul' )[0];
 309         if ( !node ) {
 310                 return null;
 311         }
 312
 313         // unhide portlet if it was hidden before
 314         root.className = root.className.replace( /(^| )emptyPortlet( |$)/, "$2" );
 315
 316         var span = document.createElement( 'span' );
 317         span.appendChild( document.createTextNode( text ) );
 318
 319         var link = document.createElement( 'a' );
 320         link.appendChild( span );
 321         link.href = href;
 322
 323         var item = document.createElement( 'li' );
 324         item.appendChild( link );
 325         if ( id ) {
 326                 item.id = id;
 327         }
 328
 329         if ( accesskey ) {
 330                 link.setAttribute( 'accesskey', accesskey );
 331                 tooltip += ' [' + accesskey + ']';
 332         }
 333         if ( tooltip ) {
 334                 link.setAttribute( 'title', tooltip );
 335         }
 336         if ( accesskey && tooltip ) {
 337                 updateTooltipAccessKeys( new Array( link ) );
 338         }
 339
 340         if ( nextnode && nextnode.parentNode == node ) {
 341                 node.insertBefore( item, nextnode );
 342         } else {
 343                 node.appendChild( item );  // IE compatibility (?)
 344         }
 345
 346         return item;
 347 }
 348
 349 function getInnerText( el ) {
 350         if ( typeof el == 'string' ) {
 351                 return el;
 352         }
 353         if ( typeof el == 'undefined' ) {
 354                 return el;
 355         }
 356         if ( el.textContent ) {
 357                 return el.textContent; // not needed but it is faster
 358         }
 359         if ( el.innerText ) {
 360                 return el.innerText; // IE doesn't have textContent
 361         }
 362         var str = '';
 363
 364         var cs = el.childNodes;
 365         var l = cs.length;
 366         for ( var i = 0; i < l; i++ ) {
 367                 switch ( cs[i].nodeType ) {
 368                         case 1: // ELEMENT_NODE
 369                                 str += ts_getInnerText( cs[i] );
 370                                 break;
 371                         case 3: // TEXT_NODE
 372                                 str += cs[i].nodeValue;
 373                                 break;
 374                 }
 375         }
 376         return str;
 377 }
 378
 379 /* Dummy for deprecated function */
 380 function akeytt( doId ) {
 381 }
 382
 383 var checkboxes;
 384 var lastCheckbox;
 385
 386 function setupCheckboxShiftClick() {
 387         checkboxes = [];
 388         lastCheckbox = null;
 389         var inputs = document.getElementsByTagName( 'input' );
 390         addCheckboxClickHandlers( inputs );
 391 }
 392
 393 function addCheckboxClickHandlers( inputs, start ) {
 394         if ( !start ) {
 395                 start = 0;
 396         }
 397
 398         var finish = start + 250;
 399         if ( finish > inputs.length ) {
 400                 finish = inputs.length;
 401         }
 402
 403         for ( var i = start; i < finish; i++ ) {
 404                 var cb = inputs[i];
 405                 if ( !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
 406                         continue;
 407                 }
 408                 var end = checkboxes.length;
 409                 checkboxes[end] = cb;
 410                 cb.index = end;
 411                 addClickHandler( cb, checkboxClickHandler );
 412         }
 413
 414         if ( finish < inputs.length ) {
 415                 setTimeout( function() {
 416                         addCheckboxClickHandlers( inputs, finish );
 417                 }, 200 );
 418         }
 419 }
 420
 421 function checkboxClickHandler( e ) {
 422         if ( typeof e == 'undefined' ) {
 423                 e = window.event;
 424         }
 425         if ( !e.shiftKey || lastCheckbox === null ) {
 426                 lastCheckbox = this.index;
 427                 return true;
 428         }
 429         var endState = this.checked;
 430         var start, finish;
 431         if ( this.index < lastCheckbox ) {
 432                 start = this.index + 1;
 433                 finish = lastCheckbox;
 434         } else {
 435                 start = lastCheckbox;
 436                 finish = this.index - 1;
 437         }
 438         for ( var i = start; i <= finish; ++i ) {
 439                 checkboxes[i].checked = endState;
 440                 if( i > start && typeof checkboxes[i].onchange == 'function' ) {
 441                         checkboxes[i].onchange(); // fire triggers
 442                 }
 443         }
 444         lastCheckbox = this.index;
 445         return true;
 446 }
 447
 448
 449 /*
 450         Written by Jonathan Snook, http://www.snook.ca/jonathan
 451         Add-ons by Robert Nyman, http://www.robertnyman.com
 452         Author says "The credit comment is all it takes, no license. Go crazy with it!:-)"
 453         From http://www.robertnyman.com/2005/11/07/the-ultimate-getelementsbyclassname/
 454 */
 455 function getElementsByClassName( oElm, strTagName, oClassNames ) {
 456         var arrReturnElements = new Array();
 457         if ( typeof( oElm.getElementsByClassName ) == 'function' ) {
 458                 /* Use a native implementation where possible FF3, Saf3.2, Opera 9.5 */
 459                 var arrNativeReturn = oElm.getElementsByClassName( oClassNames );
 460                 if ( strTagName == '*' ) {
 461                         return arrNativeReturn;
 462                 }
 463                 for ( var h = 0; h < arrNativeReturn.length; h++ ) {
 464                         if( arrNativeReturn[h].tagName.toLowerCase() == strTagName.toLowerCase() ) {
 465                                 arrReturnElements[arrReturnElements.length] = arrNativeReturn[h];
 466                         }
 467                 }
 468                 return arrReturnElements;
 469         }
 470         var arrElements = ( strTagName == '*' && oElm.all ) ? oElm.all : oElm.getElementsByTagName( strTagName );
 471         var arrRegExpClassNames = new Array();
 472         if( typeof oClassNames == 'object' ) {
 473                 for( var i = 0; i < oClassNames.length; i++ ) {
 474                         arrRegExpClassNames[arrRegExpClassNames.length] =
 475                                 new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)");
 476                 }
 477         } else {
 478                 arrRegExpClassNames[arrRegExpClassNames.length] =
 479                         new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)");
 480         }
 481         var oElement;
 482         var bMatchesAll;
 483         for( var j = 0; j < arrElements.length; j++ ) {
 484                 oElement = arrElements[j];
 485                 bMatchesAll = true;
 486                 for( var k = 0; k < arrRegExpClassNames.length; k++ ) {
 487                         if( !arrRegExpClassNames[k].test( oElement.className ) ) {
 488                                 bMatchesAll = false;
 489                                 break;
 490                         }
 491                 }
 492                 if( bMatchesAll ) {
 493                         arrReturnElements[arrReturnElements.length] = oElement;
 494                 }
 495         }
 496         return ( arrReturnElements );
 497 }
 498
 499 function redirectToFragment( fragment ) {
 500         var match = navigator.userAgent.match(/AppleWebKit\/(\d+)/);
 501         if ( match ) {
 502                 var webKitVersion = parseInt( match[1] );
 503                 if ( webKitVersion < 420 ) {
 504                         // Released Safari w/ WebKit 418.9.1 messes up horribly
 505                         // Nightlies of 420+ are ok
 506                         return;
 507                 }
 508         }
 509         if ( window.location.hash == '' ) {
 510                 window.location.hash = fragment;
 511
 512                 // Mozilla needs to wait until after load, otherwise the window doesn't
 513                 // scroll.  See <https://bugzilla.mozilla.org/show_bug.cgi?id=516293>.
 514                 // There's no obvious way to detect this programmatically, so we use
 515                 // version-testing.  If Firefox fixes the bug, they'll jump twice, but
 516                 // better twice than not at all, so make the fix hit future versions as
 517                 // well.
 518                 if ( is_gecko ) {
 519                         addOnloadHook(function() {
 520                                 if ( window.location.hash == fragment ) {
 521                                         window.location.hash = fragment;
 522                                 }
 523                         });
 524                 }
 525         }
 526 }
 527
 528 /*
 529  * Table sorting script based on one (c) 1997-2006 Stuart Langridge and Joost
 530  * de Valk:
 531  * http://www.joostdevalk.nl/code/sortable-table/
 532  * http://www.kryogenix.org/code/browser/sorttable/
 533  *
 534  * @todo don't break on colspans/rowspans (bug 8028)
 535  * @todo language-specific digit grouping/decimals (bug 8063)
 536  * @todo support all accepted date formats (bug 8226)
 537  */
 538
 539 var ts_image_path = stylepath + '/common/images/';
 540 var ts_image_up = 'sort_up.gif';
 541 var ts_image_down = 'sort_down.gif';
 542 var ts_image_none = 'sort_none.gif';
 543 var ts_europeandate = wgContentLanguage != 'en'; // The non-American-inclined can change to "true"
 544 var ts_alternate_row_colors = false;
 545 var ts_number_transform_table = null;
 546 var ts_number_regex = null;
 547
 548 function sortables_init() {
 549         var idnum = 0;
 550         // Find all tables with class sortable and make them sortable
 551         var tables = getElementsByClassName( document, 'table', 'sortable' );
 552         for ( var ti = 0; ti < tables.length ; ti++ ) {
 553                 if ( !tables[ti].id ) {
 554                         tables[ti].setAttribute( 'id', 'sortable_table_id_' + idnum );
 555                         ++idnum;
 556                 }
 557                 ts_makeSortable( tables[ti] );
 558         }
 559 }
 560
 561 function ts_makeSortable( table ) {
 562         var firstRow;
 563         if ( table.rows && table.rows.length > 0 ) {
 564                 if ( table.tHead && table.tHead.rows.length > 0 ) {
 565                         firstRow = table.tHead.rows[table.tHead.rows.length-1];
 566                 } else {
 567                         firstRow = table.rows[0];
 568                 }
 569         }
 570         if ( !firstRow ) {
 571                 return;
 572         }
 573
 574         // We have a first row: assume it's the header, and make its contents clickable links
 575         for ( var i = 0; i < firstRow.cells.length; i++ ) {
 576                 var cell = firstRow.cells[i];
 577                 if ( (' ' + cell.className + ' ').indexOf(' unsortable ') == -1 ) {
 578                         cell.innerHTML += '<a href="#" class="sortheader" '
 579                                 + 'onclick="ts_resortTable(this);return false;">'
 580                                 + '<span class="sortarrow">'
 581                                 + '<img src="'
 582                                 + ts_image_path
 583                                 + ts_image_none
 584                                 + '" alt="&darr;"/></span></a>';
 585                 }
 586         }
 587         if ( ts_alternate_row_colors ) {
 588                 ts_alternate( table );
 589         }
 590 }
 591
 592 function ts_getInnerText( el ) {
 593         return getInnerText( el );
 594 }
 595
 596 function ts_resortTable( lnk ) {
 597         // get the span
 598         var span = lnk.getElementsByTagName('span')[0];
 599
 600         var td = lnk.parentNode;
 601         var tr = td.parentNode;
 602         var column = td.cellIndex;
 603
 604         var table = tr.parentNode;
 605         while ( table && !( table.tagName && table.tagName.toLowerCase() == 'table' ) ) {
 606                 table = table.parentNode;
 607         }
 608         if ( !table ) {
 609                 return;
 610         }
 611
 612         if ( table.rows.length <= 1 ) {
 613                 return;
 614         }
 615
 616         // Generate the number transform table if it's not done already
 617         if ( ts_number_transform_table === null ) {
 618                 ts_initTransformTable();
 619         }
 620
 621         // Work out a type for the column
 622         // Skip the first row if that's where the headings are
 623         var rowStart = ( table.tHead && table.tHead.rows.length > 0 ? 0 : 1 );
 624         var bodyRows = 0;
 625         if (rowStart == 0 && table.tBodies) {
 626                 for (var i=0; i < table.tBodies.length; i++ ) {
 627                         bodyRows += table.tBodies[i].rows.length;
 628                 }
 629                 if (bodyRows < table.rows.length)
 630                         rowStart = 1;
 631         }
 632
 633         var itm = '';
 634         for ( var i = rowStart; i < table.rows.length; i++ ) {
 635                 if ( table.rows[i].cells.length > column ) {
 636                         itm = ts_getInnerText(table.rows[i].cells[column]);
 637                         itm = itm.replace(/^[\s\xa0]+/, '').replace(/[\s\xa0]+$/, '');
 638                         if ( itm != '' ) {
 639                                 break;
 640                         }
 641                 }
 642         }
 643
 644         // TODO: bug 8226, localised date formats
 645         var sortfn = ts_sort_generic;
 646         var preprocessor = ts_toLowerCase;
 647         if ( /^\d\d[\/. -][a-zA-Z]{3}[\/. -]\d\d\d\d$/.test( itm ) ) {
 648                 preprocessor = ts_dateToSortKey;
 649         } else if ( /^\d\d[\/.-]\d\d[\/.-]\d\d\d\d$/.test( itm ) ) {
 650                 preprocessor = ts_dateToSortKey;
 651         } else if ( /^\d\d[\/.-]\d\d[\/.-]\d\d$/.test( itm ) ) {
 652                 preprocessor = ts_dateToSortKey;
 653                 // (minus sign)([pound dollar euro yen currency]|cents)
 654         } else if ( /(^([-\u2212] *)?[\u00a3$\u20ac\u00a4\u00a5]|\u00a2$)/.test( itm ) ) {
 655                 preprocessor = ts_currencyToSortKey;
 656         } else if ( ts_number_regex.test( itm ) ) {
 657                 preprocessor = ts_parseFloat;
 658         }
 659
 660         var reverse = ( span.getAttribute( 'sortdir' ) == 'down' );
 661
 662         var newRows = new Array();
 663         var staticRows = new Array();
 664         for ( var j = rowStart; j < table.rows.length; j++ ) {
 665                 var row = table.rows[j];
 666                 if( (' ' + row.className + ' ').indexOf(' unsortable ') < 0 ) {
 667                         var keyText = ts_getInnerText( row.cells[column] );
 668                         if( keyText === undefined ) {
 669                                 keyText = '';
 670                         }
 671                         var oldIndex = ( reverse ? -j : j );
 672                         var preprocessed = preprocessor( keyText.replace(/^[\s\xa0]+/, '').replace(/[\s\xa0]+$/, '') );
 673
 674                         newRows[newRows.length] = new Array( row, preprocessed, oldIndex );
 675                 } else {
 676                         staticRows[staticRows.length] = new Array( row, false, j-rowStart );
 677                 }
 678         }
 679
 680         newRows.sort( sortfn );
 681
 682         var arrowHTML;
 683         if ( reverse ) {
 684                 arrowHTML = '<img src="' + ts_image_path + ts_image_down + '" alt="&darr;"/>';
 685                 newRows.reverse();
 686                 span.setAttribute( 'sortdir', 'up' );
 687         } else {
 688                 arrowHTML = '<img src="' + ts_image_path + ts_image_up + '" alt="&uarr;"/>';
 689                 span.setAttribute( 'sortdir', 'down' );
 690         }
 691
 692         for ( var i = 0; i < staticRows.length; i++ ) {
 693                 var row = staticRows[i];
 694                 newRows.splice( row[2], 0, row );
 695         }
 696
 697         // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
 698         // don't do sortbottom rows
 699         for ( var i = 0; i < newRows.length; i++ ) {
 700                 if ( ( ' ' + newRows[i][0].className + ' ').indexOf(' sortbottom ') == -1 ) {
 701                         table.tBodies[0].appendChild( newRows[i][0] );
 702                 }
 703         }
 704         // do sortbottom rows only
 705         for ( var i = 0; i < newRows.length; i++ ) {
 706                 if ( ( ' ' + newRows[i][0].className + ' ').indexOf(' sortbottom ') != -1 ) {
 707                         table.tBodies[0].appendChild( newRows[i][0] );
 708                 }
 709         }
 710
 711         // Delete any other arrows there may be showing
 712         var spans = getElementsByClassName( tr, 'span', 'sortarrow' );
 713         for ( var i = 0; i < spans.length; i++ ) {
 714                 spans[i].innerHTML = '<img src="' + ts_image_path + ts_image_none + '" alt="&darr;"/>';
 715         }
 716         span.innerHTML = arrowHTML;
 717
 718         if ( ts_alternate_row_colors ) {
 719                 ts_alternate( table );
 720         }
 721 }
 722
 723 function ts_initTransformTable() {
 724         if ( typeof wgSeparatorTransformTable == 'undefined'
 725                         || ( wgSeparatorTransformTable[0] == '' && wgDigitTransformTable[2] == '' ) )
 726         {
 727                 var digitClass = "[0-9,.]";
 728                 ts_number_transform_table = false;
 729         } else {
 730                 ts_number_transform_table = {};
 731                 // Unpack the transform table
 732                 // Separators
 733                 var ascii = wgSeparatorTransformTable[0].split("\t");
 734                 var localised = wgSeparatorTransformTable[1].split("\t");
 735                 for ( var i = 0; i < ascii.length; i++ ) {
 736                         ts_number_transform_table[localised[i]] = ascii[i];
 737                 }
 738                 // Digits
 739                 ascii = wgDigitTransformTable[0].split("\t");
 740                 localised = wgDigitTransformTable[1].split("\t");
 741                 for ( var i = 0; i < ascii.length; i++ ) {
 742                         ts_number_transform_table[localised[i]] = ascii[i];
 743                 }
 744
 745                 // Construct regex for number identification
 746                 var digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ',', '\\.'];
 747                 var maxDigitLength = 1;
 748                 for ( var digit in ts_number_transform_table ) {
 749                         // Escape regex metacharacters
 750                         digits.push(
 751                                 digit.replace( /[\\\\$\*\+\?\.\(\)\|\{\}\[\]\-]/,
 752                                         function( s ) { return '\\' + s; } )
 753                         );
 754                         if ( digit.length > maxDigitLength ) {
 755                                 maxDigitLength = digit.length;
 756                         }
 757                 }
 758                 if ( maxDigitLength > 1 ) {
 759                         var digitClass = '[' + digits.join( '', digits ) + ']';
 760                 } else {
 761                         var digitClass = '(' + digits.join( '|', digits ) + ')';
 762                 }
 763         }
 764
 765         // We allow a trailing percent sign, which we just strip.  This works fine
 766         // if percents and regular numbers aren't being mixed.
 767         ts_number_regex = new RegExp(
 768                 "^(" +
 769                         "[-+\u2212]?[0-9][0-9,]*(\\.[0-9,]*)?(E[-+\u2212]?[0-9][0-9,]*)?" + // Fortran-style scientific
 770                         "|" +
 771                         "[-+\u2212]?" + digitClass + "+%?" + // Generic localised
 772                 ")$", "i"
 773         );
 774 }
 775
 776 function ts_toLowerCase( s ) {
 777         return s.toLowerCase();
 778 }
 779
 780 function ts_dateToSortKey( date ) {
 781         // y2k notes: two digit years less than 50 are treated as 20XX, greater than 50 are treated as 19XX
 782         if ( date.length == 11 ) {
 783                 switch ( date.substr( 3, 3 ).toLowerCase() ) {
 784                         case 'jan':
 785                                 var month = '01';
 786                                 break;
 787                         case 'feb':
 788                                 var month = '02';
 789                                 break;
 790                         case 'mar':
 791                                 var month = '03';
 792                                 break;
 793                         case 'apr':
 794                                 var month = '04';
 795                                 break;
 796                         case 'may':
 797                                 var month = '05';
 798                                 break;
 799                         case 'jun':
 800                                 var month = '06';
 801                                 break;
 802                         case 'jul':
 803                                 var month = '07';
 804                                 break;
 805                         case 'aug':
 806                                 var month = '08';
 807                                 break;
 808                         case 'sep':
 809                                 var month = '09';
 810                                 break;
 811                         case 'oct':
 812                                 var month = '10';
 813                                 break;
 814                         case 'nov':
 815                                 var month = '11';
 816                                 break;
 817                         case 'dec':
 818                                 var month = '12';
 819                                 break;
 820                         // default: var month = '00';
 821                 }
 822                 return date.substr( 7, 4 ) + month + date.substr( 0, 2 );
 823         } else if ( date.length == 10 ) {
 824                 if ( ts_europeandate == false ) {
 825                         return date.substr( 6, 4 ) + date.substr( 0, 2 ) + date.substr( 3, 2 );
 826                 } else {
 827                         return date.substr( 6, 4 ) + date.substr( 3, 2 ) + date.substr( 0, 2 );
 828                 }
 829         } else if ( date.length == 8 ) {
 830                 var yr = date.substr( 6, 2 );
 831                 if ( parseInt( yr ) < 50 ) {
 832                         yr = '20' + yr;
 833                 } else {
 834                         yr = '19' + yr;
 835                 }
 836                 if ( ts_europeandate == true ) {
 837                         return yr + date.substr( 3, 2 ) + date.substr( 0, 2 );
 838                 } else {
 839                         return yr + date.substr( 0, 2 ) + date.substr( 3, 2 );
 840                 }
 841         }
 842         return '00000000';
 843 }
 844
 845 function ts_parseFloat( s ) {
 846         if ( !s ) {
 847                 return 0;
 848         }
 849         if ( ts_number_transform_table != false ) {
 850                 var newNum = '', c;
 851
 852                 for ( var p = 0; p < s.length; p++ ) {
 853                         c = s.charAt( p );
 854                         if ( c in ts_number_transform_table ) {
 855                                 newNum += ts_number_transform_table[c];
 856                         } else {
 857                                 newNum += c;
 858                         }
 859                 }
 860                 s = newNum;
 861         }
 862         var num = parseFloat( s.replace(/[, ]/g, '').replace("\u2212", '-') );
 863         return ( isNaN( num ) ? -Infinity : num );
 864 }
 865
 866 function ts_currencyToSortKey( s ) {
 867         return ts_parseFloat(s.replace(/[^-\u22120-9.,]/g,''));
 868 }
 869
 870 function ts_sort_generic( a, b ) {
 871         return a[1] < b[1] ? -1 : a[1] > b[1] ? 1 : a[2] - b[2];
 872 }
 873
 874 function ts_alternate( table ) {
 875         // Take object table and get all it's tbodies.
 876         var tableBodies = table.getElementsByTagName( 'tbody' );
 877         // Loop through these tbodies
 878         for ( var i = 0; i < tableBodies.length; i++ ) {
 879                 // Take the tbody, and get all it's rows
 880                 var tableRows = tableBodies[i].getElementsByTagName( 'tr' );
 881                 // Loop through these rows
 882                 // Start at 1 because we want to leave the heading row untouched
 883                 for ( var j = 0; j < tableRows.length; j++ ) {
 884                         // Check if j is even, and apply classes for both possible results
 885                         var oldClasses = tableRows[j].className.split(' ');
 886                         var newClassName = '';
 887                         for ( var k = 0; k < oldClasses.length; k++ ) {
 888                                 if ( oldClasses[k] != '' && oldClasses[k] != 'even' && oldClasses[k] != 'odd' ) {
 889                                         newClassName += oldClasses[k] + ' ';
 890                                 }
 891                         }
 892                         tableRows[j].className = newClassName + ( j % 2 == 0 ? 'even' : 'odd' );
 893                 }
 894         }
 895 }
 896
 897 /*
 898  * End of table sorting code
 899  */
 900
 901
 902 /**
 903  * Add a cute little box at the top of the screen to inform the user of
 904  * something, replacing any preexisting message.
 905  *
 906  * @param String -or- Dom Object message HTML to be put inside the right div
 907  * @param String className   Used in adding a class; should be different for each
 908  *   call to allow CSS/JS to hide different boxes.  null = no class used.
 909  * @return Boolean       True on success, false on failure
 910  */
 911 function jsMsg( message, className ) {
 912         if ( !document.getElementById ) {
 913                 return false;
 914         }
 915         // We special-case skin structures provided by the software.  Skins that
 916         // choose to abandon or significantly modify our formatting can just define
 917         // an mw-js-message div to start with.
 918         var messageDiv = document.getElementById( 'mw-js-message' );
 919         if ( !messageDiv ) {
 920                 messageDiv = document.createElement( 'div' );
 921                 if ( document.getElementById( 'column-content' )
 922                 && document.getElementById( 'content' ) ) {
 923                         // MonoBook, presumably
 924                         document.getElementById( 'content' ).insertBefore(
 925                                 messageDiv,
 926                                 document.getElementById( 'content' ).firstChild
 927                         );
 928                 } else if ( document.getElementById( 'content' )
 929                 && document.getElementById( 'article' ) ) {
 930                         // Non-Monobook but still recognizable (old-style)
 931                         document.getElementById( 'article').insertBefore(
 932                                 messageDiv,
 933                                 document.getElementById( 'article' ).firstChild
 934                         );
 935                 } else {
 936                         return false;
 937                 }
 938         }
 939
 940         messageDiv.setAttribute( 'id', 'mw-js-message' );
 941         messageDiv.style.display = 'block';
 942         if( className ) {
 943                 messageDiv.setAttribute( 'class', 'mw-js-message-' + className );
 944         }
 945
 946         if ( typeof message === 'object' ) {
 947                 while ( messageDiv.hasChildNodes() ) { // Remove old content
 948                         messageDiv.removeChild( messageDiv.firstChild );
 949                 }
 950                 messageDiv.appendChild( message ); // Append new content
 951         } else {
 952                 messageDiv.innerHTML = message;
 953         }
 954         return true;
 955 }
 956
 957 /**
 958  * Inject a cute little progress spinner after the specified element
 959  *
 960  * @param element Element to inject after
 961  * @param id Identifier string (for use with removeSpinner(), below)
 962  */
 963 function injectSpinner( element, id ) {
 964         var spinner = document.createElement( 'img' );
 965         spinner.id = 'mw-spinner-' + id;
 966         spinner.src = stylepath + '/common/images/spinner.gif';
 967         spinner.alt = spinner.title = '...';
 968         if( element.nextSibling ) {
 969                 element.parentNode.insertBefore( spinner, element.nextSibling );
 970         } else {
 971                 element.parentNode.appendChild( spinner );
 972         }
 973 }
 974
 975 /**
 976  * Remove a progress spinner added with injectSpinner()
 977  *
 978  * @param id Identifier string
 979  */
 980 function removeSpinner( id ) {
 981         var spinner = document.getElementById( 'mw-spinner-' + id );
 982         if( spinner ) {
 983                 spinner.parentNode.removeChild( spinner );
 984         }
 985 }
 986
 987 function runOnloadHook() {
 988         // don't run anything below this for non-dom browsers
 989         if ( doneOnloadHook || !( document.getElementById && document.getElementsByTagName ) ) {
 990                 return;
 991         }
 992
 993         // set this before running any hooks, since any errors below
 994         // might cause the function to terminate prematurely
 995         doneOnloadHook = true;
 996
 997         updateTooltipAccessKeys( null );
 998         setupCheckboxShiftClick();
 999         sortables_init();
1000
1001         // Run any added-on functions
1002         for ( var i = 0; i < onloadFuncts.length; i++ ) {
1003                 onloadFuncts[i]();
1004         }
1005 }
1006
1007 /**
1008  * Add an event handler to an element
1009  *
1010  * @param Element element Element to add handler to
1011  * @param String attach Event to attach to
1012  * @param callable handler Event handler callback
1013  */
1014 function addHandler( element, attach, handler ) {
1015         if( window.addEventListener ) {
1016                 element.addEventListener( attach, handler, false );
1017         } else if( window.attachEvent ) {
1018                 element.attachEvent( 'on' + attach, handler );
1019         }
1020 }
1021
1022 /**
1023  * Add a click event handler to an element
1024  *
1025  * @param Element element Element to add handler to
1026  * @param callable handler Event handler callback
1027  */
1028 function addClickHandler( element, handler ) {
1029         addHandler( element, 'click', handler );
1030 }
1031
1032 /**
1033  * Removes an event handler from an element
1034  *
1035  * @param Element element Element to remove handler from
1036  * @param String remove Event to remove
1037  * @param callable handler Event handler callback to remove
1038  */
1039 function removeHandler( element, remove, handler ) {
1040         if( window.removeEventListener ) {
1041                 element.removeEventListener( remove, handler, false );
1042         } else if( window.detachEvent ) {
1043                 element.detachEvent( 'on' + remove, handler );
1044         }
1045 }
1046 // note: all skins should call runOnloadHook() at the end of html output,
1047 //      so the below should be redundant. It's there just in case.
1048 hookEvent( 'load', runOnloadHook );
1049
1050 if ( ie6_bugs ) {
1051         importScriptURI( stylepath + '/common/IEFixes.js' );
1052 }
1053
1054 // For future use.
1055 mw = {};
1056
1057