// MediaWiki JavaScript support functions

var clientPC = navigator.userAgent.toLowerCase(); // Get client info
var is_gecko = /gecko/.test( clientPC ) &&
	!/khtml|spoofer|netscape\/7\.0/.test(clientPC);
var webkit_match = clientPC.match(/applewebkit\/(\d+)/);
if (webkit_match) {
	var is_safari = clientPC.indexOf('applewebkit') != -1 &&
		clientPC.indexOf('spoofer') == -1;
	var is_safari_win = is_safari && clientPC.indexOf('windows') != -1;
	var webkit_version = parseInt(webkit_match[1]);
}
// For accesskeys; note that FF3+ is included here!
var is_ff2 = /firefox\/[2-9]|minefield\/3/.test( clientPC );
var ff2_bugs = /firefox\/2/.test( clientPC );
// These aren't used here, but some custom scripts rely on them
var is_ff2_win = is_ff2 && clientPC.indexOf('windows') != -1;
var is_ff2_x11 = is_ff2 && clientPC.indexOf('x11') != -1;
if (clientPC.indexOf('opera') != -1) {
	var is_opera = true;
	var is_opera_preseven = window.opera && !document.childNodes;
	var is_opera_seven = window.opera && document.childNodes;
	var is_opera_95 = /opera\/(9\.[5-9]|[1-9][0-9])/.test( clientPC );
	var opera6_bugs = is_opera_preseven;
	var opera7_bugs = is_opera_seven && !is_opera_95;
	var opera95_bugs = /opera\/(9\.5)/.test( clientPC );
}

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

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

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

// code that is dependent on js2 functions should use js2AddOnloadHook
function addOnloadHook(hookFunct) {
	// Allows add-on scripts to add onload functions
	if(!doneOnloadHook) {
		_proxy_jslib_assign('', onloadFuncts, (onloadFuncts.length), '=', ( hookFunct));
	} else {
		hookFunct();  // bug in MSIE script loading
	}
}


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

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

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

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

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

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

// special stylesheet links
if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
	// FIXME: This tries to load the stylesheets even for skins where they
	// don't exist, i.e., everything but Monobook.
	if (opera6_bugs) {
		importStylesheetURI(stylepath+'/'+skin+'/Opera6Fixes.css');
	} else if (opera7_bugs) {
		importStylesheetURI(stylepath+'/'+skin+'/Opera7Fixes.css');
	} else if (opera95_bugs) {
		importStylesheetURI(stylepath+'/'+skin+'/Opera9Fixes.css');
	} else if (ff2_bugs) {
		importStylesheetURI(stylepath+'/'+skin+'/FF2Fixes.css');
	}
}


if (wgBreakFrames) {
	// Un-trap us from framesets
	if (_proxy_jslib_handle(window, 'top') != window) {
		_proxy_jslib_assign('', _proxy_jslib_handle(window, 'top'), 'location', '=', ( _proxy_jslib_handle(window, 'location')));
	}
}

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

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

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

		var toggleLink = document.createElement('a');
		toggleLink.id = 'togglelink';
		toggleLink.className = 'internal';
		_proxy_jslib_assign('', toggleLink, 'href', '=', ( 'javascript:toggleToc()'));
		_proxy_jslib_handle(toggleLink, 'appendChild')(document.createTextNode(tocHideText));

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

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

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

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

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

	if (toc && toggleLink && toc.style.display == 'none') {
		changeText(toggleLink, tocHideText);
		toc.style.display = 'block';
		_proxy_jslib_assign('', document, 'cookie', '=', ( "hidetoc=0"));
		tocmain.className = 'toc';
	} else {
		changeText(toggleLink, tocShowText);
		toc.style.display = 'none';
		_proxy_jslib_assign('', document, 'cookie', '=', ( "hidetoc=1"));
		tocmain.className = 'toc tochidden';
	}
}

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

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

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


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

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

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

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

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

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

	var link = document.createElement( "a" );
	_proxy_jslib_handle(link, 'appendChild')( span );
	_proxy_jslib_assign('', link, 'href', '=', ( _proxy_jslib_handle(null, 'href', href)));

	var item = document.createElement( "li" );
	_proxy_jslib_handle(item, 'appendChild')( link );
	if ( id ) item.id = id;

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

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

	return item;
}

function getInnerText(el) {
	if (typeof el == "string") return el;
	if (typeof el == "undefined") { return el };
	if (el.textContent) return el.textContent; // not needed but it is faster
	if (el.innerText) return el.innerText;     // IE doesn't have textContent
	var str = "";

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


/**
 * Set up accesskeys/tooltips from the deprecated ta array.  If doId
 * is specified, only set up for that id.  Note that this function is
 * deprecated and will not be supported indefinitely -- use
 * updateTooltipAccessKey() instead.
 *
 * @param mixed doId string or null
 */
function akeytt( doId ) {
	// A lot of user scripts (and some of the code below) break if
	// ta isn't defined, so we make sure it is.  Explictly using
	// window.ta avoids a "ta is not defined" error.
	if (!window.ta) window.ta = new Array;

	// Make a local, possibly restricted, copy to avoid clobbering
	// the original.
	var ta;
	if ( doId ) {
		ta = [doId];
	} else {
		ta = window.ta;
	}

	// Now deal with evil deprecated ta
	var watchCheckboxExists = _proxy_jslib_handle(document, 'getElementById')( 'wpWatchthis' ) ? true : false;
	for (var id in ta) {
		var n = _proxy_jslib_handle(document, 'getElementById')(id);
		if (n) {
			var a = null;
			var ak = '';
			// Are we putting accesskey in it
			if (_proxy_jslib_handle(ta, (id))[0].length > 0) {
				// Is this object a object? If not assume it's the next child.

				if (n.nodeName.toLowerCase() == "a") {
					a = n;
				} else {
					a = n.childNodes[0];
				}
			 	// Don't add an accesskey for the watch tab if the watch
			 	// checkbox is also available.
				if (a && ((id != 'ca-watch' && id != 'ca-unwatch') || !watchCheckboxExists)) {
					a.accessKey = _proxy_jslib_handle(ta, (id))[0];
					ak = ' ['+tooltipAccessKeyPrefix+_proxy_jslib_handle(ta, (id))[0]+']';
				}
			} else {
				// We don't care what type the object is when assigning tooltip
				a = n;
				ak = '';
			}

			if (a) {
				a.title = _proxy_jslib_handle(ta, (id))[1]+ak;
			}
		}
	}
}

var checkboxes;
var lastCheckbox;

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

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

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

	for ( var i = start; i < finish; i++ ) {
		var cb = _proxy_jslib_handle(inputs, (i));
		if ( !cb.type || cb.type.toLowerCase() != 'checkbox' )
			continue;
		var end = checkboxes.length;
		_proxy_jslib_assign('', checkboxes, (end), '=', ( cb));
		cb.index = end;
		cb.onclick = checkboxClickHandler;
	}

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

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

function toggle_element_activation(ida,idb) {
	if ( !_proxy_jslib_handle(document, 'getElementById') ) {
		return;
	}
	// Show the appropriate upload size limit message
	if( idb == 'wpUploadFileURL' ) {
		var e = _proxy_jslib_handle(document, 'getElementById')( 'mw-upload-maxfilesize' );
		if( e ) e.style.display = "none";

		var e = _proxy_jslib_handle(document, 'getElementById')( 'mw-upload-maxfilesize-url' );
		if( e ) e.style.display = "block";
	}
	if( idb == 'wpUploadFile' ) {
		var e = _proxy_jslib_handle(document, 'getElementById')( 'mw-upload-maxfilesize-url' );
		if( e ) e.style.display =  "none";

		var e = _proxy_jslib_handle(document, 'getElementById')( 'mw-upload-maxfilesize' );
		if( e ) e.style.display =  "block";
	}
	_proxy_jslib_handle(document, 'getElementById')( ida ).disabled = true;
	_proxy_jslib_handle(document, 'getElementById')( idb ).disabled = false;
}

function toggle_element_check(ida,idb) {
	if (!_proxy_jslib_handle(document, 'getElementById')) {
		return;
	}
	_proxy_jslib_handle(document, 'getElementById')(ida).checked=true;
	_proxy_jslib_handle(document, 'getElementById')(idb).checked=false;
}

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

function redirectToFragment(fragment) {
	var match = navigator.userAgent.match(/AppleWebKit\/(\d+)/);
	if (match) {
		var webKitVersion = parseInt(match[1]);
		if (webKitVersion < 420) {
			// Released Safari w/ WebKit 418.9.1 messes up horribly
			// Nightlies of 420+ are ok
			return;
		}
	}
	if (is_gecko) {
		// Mozilla needs to wait until after load, otherwise the window doesn't scroll
		addOnloadHook(function () {
			if (_proxy_jslib_handle(window, 'location').hash == "")
				_proxy_jslib_handle(window, 'location').hash = fragment;
		});
	} else {
		if (_proxy_jslib_handle(window, 'location').hash == "")
			_proxy_jslib_handle(window, 'location').hash = fragment;
	}
}

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

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

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

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

	// We have a first row: assume it's the header, and make its contents clickable links
	for (var i = 0; i < firstRow.cells.length; i++) {
		var cell = _proxy_jslib_handle(firstRow.cells, (i));
		if ((" "+cell.className+" ").indexOf(" unsortable ") == -1) {
			_proxy_jslib_assign('', 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>'));
		}
	}
	if (ts_alternate_row_colors) {
		ts_alternate(table);
	}
}

function ts_getInnerText(el) {
	return getInnerText( el );
}

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

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

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

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

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

	// Work out a type for the column
	// Skip the first row if that's where the headings are
	var rowStart = (table.tHead && table.tHead.rows.length > 0 ? 0 : 1);

	var itm = "";
	for (var i = rowStart; i < table.rows.length; i++) {
		if (_proxy_jslib_handle(table.rows, (i)).cells.length > column) {
			itm = ts_getInnerText(_proxy_jslib_handle(_proxy_jslib_handle(table.rows, (i)).cells, (column)));
			itm = _proxy_jslib_handle(_proxy_jslib_handle(itm, 'replace')(/^[\s\xa0]+/, ""), 'replace')(/[\s\xa0]+$/, "");
			if (itm != "") break;
		}
	}

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

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

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

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

	newRows.sort(sortfn);

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

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

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

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

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

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

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

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

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

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

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

		for ( var p = 0; p < s.length; p++ ) {
			c = s.charAt( p );
			if (c in ts_number_transform_table) {
				newNum += _proxy_jslib_handle(ts_number_transform_table, (c));
			} else {
				newNum += c;
			}
		}
		s = newNum;
	}

	num = parseFloat(_proxy_jslib_handle(s, 'replace')(/,/g, ""));
	return (isNaN(num) ? 0 : num);
}

function ts_currencyToSortKey( s ) {
	return ts_parseFloat(_proxy_jslib_handle(s, 'replace')(/[^0-9.,]/g,''));
}

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

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

/*
 * End of table sorting code
 */


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

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

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

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

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

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

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

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

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

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

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

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

// For future use.
mw = {};


 ;
_proxy_jslib_flush_write_buffers() ;