// MediaWiki JavaScript support functions


var clientPC = navigator.userAgent.toLowerCase(); // Get client info
var is_gecko = ((clientPC.indexOf('gecko')!=-1) && (clientPC.indexOf('spoofer')==-1)
                && (clientPC.indexOf('khtml') == -1) && (clientPC.indexOf('netscape/7.0')==-1));
var is_safari = ((clientPC.indexOf('applewebkit')!=-1) && (clientPC.indexOf('spoofer')==-1));
var is_khtml = (navigator.vendor == 'KDE' || ( document.childNodes && !document.all && !navigator.taintEnabled ));
// For accesskeys
var is_ff2_win = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1) && clientPC.indexOf('windows')!=-1;
var is_ff2_x11 = (clientPC.indexOf('firefox/2')!=-1 || clientPC.indexOf('minefield/3')!=-1) && 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);
}

// 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 = [];
}

function addOnloadHook(hookFunct) {
	// Allows add-on scripts to add onload functions
	onloadFuncts[onloadFuncts.length] = hookFunct;
}

function hookEvent(hookName, hookFunct) {
	if (window.addEventListener) {
		window.addEventListener(hookName, hookFunct, false);
	} else if (window.attachEvent) {
		window.attachEvent("on" + hookName, hookFunct);
	}
}

// document.write special stylesheet links
if (typeof stylepath != 'undefined' && typeof skin != 'undefined') {
	if (is_opera_preseven) {
		/*document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera6Fixes.css">');*/
		document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
	} else if (is_opera_seven) {
		document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/Opera7Fixes.css">');
	} else if (is_khtml) {
		document.write('<link rel="stylesheet" type="text/css" href="'+stylepath+'/'+skin+'/KHTMLFixes.css">');
	}
}

if (wgBreakFrames) {
	// Un-trap us from framesets
	if (window.top != window) {
		window.top.location = window.location;
	}
}

// for enhanced RecentChanges
function toggleVisibility(_levelId, _otherId, _linkId) {
	var thisLevel = document.getElementById(_levelId);
	var otherLevel = document.getElementById(_otherId);
	var linkLevel = document.getElementById(_linkId);
	if (thisLevel.style.display == 'none') {
		thisLevel.style.display = 'block';
		otherLevel.style.display = 'none';
		linkLevel.style.display = 'inline';
	} else {
		thisLevel.style.display = 'none';
		otherLevel.style.display = 'inline';
		linkLevel.style.display = 'none';
	}
}

function historyRadios(parent) {
	var inputs = parent.getElementsByTagName('input');
	var radios = [];
	for (var i = 0; i < inputs.length; i++) {
		if (inputs[i].name == "diff" || inputs[i].name == "oldid") {
			radios[radios.length] = inputs[i];
		}
	}
	return radios;
}

// check selection and tweak visibility/class onclick
function diffcheck() {
	var dli = false; // the li where the diff radio is checked
	var oli = false; // the li where the oldid radio is checked
	var hf = document.getElementById('pagehistory');
	if (!hf) {
		return true;
	}
	var lis = hf.getElementsByTagName('li');
	for (var i=0;i<lis.length;i++) {
		var inputs = historyRadios(lis[i]);
		if (inputs[1] && inputs[0]) {
			if (inputs[1].checked || inputs[0].checked) { // this row has a checked radio button
				if (inputs[1].checked && inputs[0].checked && inputs[0].value == inputs[1].value) {
					return false;
				}
				if (oli) { // it's the second checked radio
					if (inputs[1].checked) {
						oli.className = "selected";
						return false;
					}
				} else if (inputs[0].checked) {
					return false;
				}
				if (inputs[0].checked) {
					dli = lis[i];
				}
				if (!oli) {
					inputs[0].style.visibility = 'hidden';
				}
				if (dli) {
					inputs[1].style.visibility = 'hidden';
				}
				lis[i].className = "selected";
				oli = lis[i];
			}  else { // no radio is checked in this row
				if (!oli) {
					inputs[0].style.visibility = 'hidden';
				} else {
					inputs[0].style.visibility = 'visible';
				}
				if (dli) {
					inputs[1].style.visibility = 'hidden';
				} else {
					inputs[1].style.visibility = 'visible';
				}
				lis[i].className = "";
			}
		}
	}
	return true;
}

// page history stuff
// attach event handlers to the input elements on history page
function histrowinit() {
	var hf = document.getElementById('pagehistory');
	if (!hf) {
		return;
	}
	var lis = hf.getElementsByTagName('li');
	for (var i = 0; i < lis.length; i++) {
		var inputs = historyRadios(lis[i]);
		if (inputs[0] && inputs[1]) {
			inputs[0].onclick = diffcheck;
			inputs[1].onclick = diffcheck;
		}
	}
	diffcheck();
}

// generate toc from prefs form, fold sections
// XXX: needs testing on IE/Mac and safari
// more comments to follow
function tabbedprefs() {
	var prefform = document.getElementById('preferences');
	if (!prefform || !document.createElement) {
		return;
	}
	if (prefform.nodeName.toLowerCase() == 'a') {
		return; // Occasional IE problem
	}
	prefform.className = prefform.className + 'jsprefs';
	var sections = [];
	var children = prefform.childNodes;
	var seci = 0;
	for (var i = 0; i < children.length; i++) {
		if (children[i].nodeName.toLowerCase() == 'fieldset') {
			children[i].id = 'prefsection-' + seci;
			children[i].className = 'prefsection';
			if (is_opera || is_khtml) {
				children[i].className = 'prefsection operaprefsection';
			}
			var legends = children[i].getElementsByTagName('legend');
			sections[seci] = {};
			legends[0].className = 'mainLegend';
			if (legends[0] && legends[0].firstChild.nodeValue) {
				sections[seci].text = legends[0].firstChild.nodeValue;
			} else {
				sections[seci].text = '# ' + seci;
			}
			sections[seci].secid = children[i].id;
			seci++;
			if (sections.length != 1) {
				children[i].style.display = 'none';
			} else {
				var selectedid = children[i].id;
			}
		}
	}
	var toc = document.createElement('ul');
	toc.id = 'preftoc';
	toc.selectedid = selectedid;
	for (i = 0; i < sections.length; i++) {
		var li = document.createElement('li');
		if (i === 0) {
			li.className = 'selected';
		}
		var a = document.createElement('a');
		a.href = '#' + sections[i].secid;
		a.onmousedown = a.onclick = uncoversection;
		a.appendChild(document.createTextNode(sections[i].text));
		a.secid = sections[i].secid;
		li.appendChild(a);
		toc.appendChild(li);
	}
	prefform.parentNode.insertBefore(toc, prefform.parentNode.childNodes[0]);
	document.getElementById('prefsubmit').id = 'prefcontrol';
}

function uncoversection() {
	var oldsecid = this.parentNode.parentNode.selectedid;
	var newsec = document.getElementById(this.secid);
	if (oldsecid != this.secid) {
		var ul = document.getElementById('preftoc');
		document.getElementById(oldsecid).style.display = 'none';
		newsec.style.display = 'block';
		ul.selectedid = this.secid;
		var lis = ul.getElementsByTagName('li');
		for (var i = 0; i< lis.length; i++) {
			lis[i].className = '';
		}
		this.parentNode.className = 'selected';
	}
	return false;
}

// Timezone stuff
// tz in format [+-]HHMM
function checkTimezone(tz, msg) {
	var localclock = new Date();
	// returns negative offset from GMT in minutes
	var tzRaw = localclock.getTimezoneOffset();
	var tzHour = Math.floor( Math.abs(tzRaw) / 60);
	var tzMin = Math.abs(tzRaw) % 60;
	var tzString = ((tzRaw >= 0) ? "-" : "+") + ((tzHour < 10) ? "0" : "") + tzHour + ((tzMin < 10) ? "0" : "") + tzMin;
	if (tz != tzString) {
		var junk = msg.split('$1');
		document.write(junk[0] + "UTC" + tzString + junk[1]);
	}
}

function unhidetzbutton() {
	var tzb = document.getElementById('guesstimezonebutton');
	if (tzb) {
		tzb.style.display = 'inline';
	}
}

// in [-]HH:MM format...
// won't yet work with non-even tzs
function fetchTimezone() {
	// FIXME: work around Safari bug
	var localclock = new Date();
	// returns negative offset from GMT in minutes
	var tzRaw = localclock.getTimezoneOffset();
	var tzHour = Math.floor( Math.abs(tzRaw) / 60);
	var tzMin = Math.abs(tzRaw) % 60;
	var tzString = ((tzRaw >= 0) ? "-" : "") + ((tzHour < 10) ? "0" : "") + tzHour +
		":" + ((tzMin < 10) ? "0" : "") + tzMin;
	return tzString;
}

function guessTimezone(box) {
	document.getElementsByName("wpHourDiff")[0].value = fetchTimezone();
}

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

		var linkHolder = document.getElementById('toctitle');
		if (!linkHolder) {
			return;
		}

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

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

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

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

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

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

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

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

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

// this function generates the actual toolbar buttons with localized text
// we use it to avoid creating the toolbar where javascript is not enabled
function addButton(imageFile, speedTip, tagOpen, tagClose, sampleText) {
	// Don't generate buttons for browsers which don't fully
	// support it.
	mwEditButtons[mwEditButtons.length] =
		{"imageFile": imageFile,
		 "speedTip": speedTip,
		 "tagOpen": tagOpen,
		 "tagClose": tagClose,
		 "sampleText": sampleText};
}

// this function generates the actual toolbar buttons with localized text
// we use it to avoid creating the toolbar where javascript is not enabled
function mwInsertEditButton(parent, item) {
	var image = document.createElement("img");
	image.width = 23;
	image.height = 22;
	image.src = item.imageFile;
	image.border = 0;
	image.alt = item.speedTip;
	image.title = item.speedTip;
	image.style.cursor = "pointer";
	image.onclick = function() {
		insertTags(item.tagOpen, item.tagClose, item.sampleText);
		return false;
	};
	
	parent.appendChild(image);
	return true;
}

function mwSetupToolbar() {
	var toolbar = document.getElementById('toolbar');
	if (!toolbar) { return false; }

	var textbox = document.getElementById('wpTextbox1');
	if (!textbox) { return false; }
	
	// Don't generate buttons for browsers which don't fully
	// support it.
	if (!document.selection && textbox.selectionStart === null) {
		return false;
	}
	
	for (var i in mwEditButtons) {
		mwInsertEditButton(toolbar, mwEditButtons[i]);
	}
	for (i in mwCustomEditButtons) {
		mwInsertEditButton(toolbar, mwCustomEditButtons[i]);
	}
	return true;
}

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

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

// apply tagOpen/tagClose to selection in textarea,
// use sampleText instead of selection if there is none
// copied and adapted from phpBB
function insertTags(tagOpen, tagClose, sampleText) {
	var txtarea;
	if (document.editform) {
		txtarea = document.editform.wpTextbox1;
	} else {
		// some alternate form? take the first one we can find
		var areas = document.getElementsByTagName('textarea');
		txtarea = areas[0];
	}

	// IE
	if (document.selection  && !is_gecko) {
		var theSelection = document.selection.createRange().text;
		if (!theSelection) {
			theSelection=sampleText;
		}
		txtarea.focus();
		if (theSelection.charAt(theSelection.length - 1) == " ") { // exclude ending space char, if any
			theSelection = theSelection.substring(0, theSelection.length - 1);
			document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
		} else {
			document.selection.createRange().text = tagOpen + theSelection + tagClose;
		}

	// Mozilla
	} else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
		var replaced = false;
		var startPos = txtarea.selectionStart;
		var endPos = txtarea.selectionEnd;
		if (endPos-startPos) {
			replaced = true;
		}
		var scrollTop = txtarea.scrollTop;
		var myText = (txtarea.value).substring(startPos, endPos);
		if (!myText) {
			myText=sampleText;
		}
		var subst;
		if (myText.charAt(myText.length - 1) == " ") { // exclude ending space char, if any
			subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
		} else {
			subst = tagOpen + myText + tagClose;
		}
		txtarea.value = txtarea.value.substring(0, startPos) + subst +
			txtarea.value.substring(endPos, txtarea.value.length);
		txtarea.focus();
		//set new selection
		if (replaced) {
			var cPos = startPos+(tagOpen.length+myText.length+tagClose.length);
			txtarea.selectionStart = cPos;
			txtarea.selectionEnd = cPos;
		} else {
			txtarea.selectionStart = startPos+tagOpen.length;
			txtarea.selectionEnd = startPos+tagOpen.length+myText.length;
		}
		txtarea.scrollTop = scrollTop;

	// All other browsers get no toolbar.
	// There was previously support for a crippled "help"
	// bar, but that caused more problems than it solved.
	}
	// reposition cursor if possible
	if (txtarea.createTextRange) {
		txtarea.caretPos = document.selection.createRange().duplicate();
	}
}

/**
 * Set up accesskeys/tooltips.  If doId is specified, only set up for that id.
 *
 * @param mixed doId string or null
 */
function akeytt( doId ) {
	if (typeof ta == "undefined" || !ta) {
		return;
	}

	var pref;
	if (is_opera) {
		pref = 'shift-esc-';
	} else if (is_safari || navigator.userAgent.toLowerCase().indexOf('mac') + 1
		|| navigator.userAgent.toLowerCase().indexOf('konqueror') + 1 ) {
		pref = 'control-';
	} else if (is_ff2_win || is_ff2_x11) {
		pref = 'alt-shift-';
	} else {
		pref = 'alt-';
	}

	if ( doId ) {
		ta = [ta[doId]];
	}

	for (var id in ta) {
		var n = document.getElementById(id);
		if (n) {
			var a = null;
			var ak = '';
			// Are we putting accesskey in it
			if (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') ||
				!(window.location.search.match(/[\?&](action=edit|action=submit)/i)))) {
					a.accessKey = ta[id][0];
					ak = ' ['+pref+ta[id][0]+']';
				}
			} else {
				// We don't care what type the object is when assigning tooltip
				a = n;
				ak = '';
			}

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

function setupRightClickEdit() {
	if (document.getElementsByTagName) {
		var spans = document.getElementsByTagName('span');
		for (var i = 0; i < spans.length; i++) {
			var el = spans[i];
			if(el.className == 'editsection') {
				addRightClickEditHandler(el);
			}
		}
	}
}

function addRightClickEditHandler(el) {
	for (var i = 0; i < el.childNodes.length; i++) {
		var link = el.childNodes[i];
		if (link.nodeType == 1 && link.nodeName.toLowerCase() == 'a') {
			var editHref = link.getAttribute('href');
			// find the enclosing (parent) header
			var prev = el.parentNode;
			if (prev && prev.nodeType == 1 &&
			prev.nodeName.match(/^[Hh][1-6]$/)) {
				prev.oncontextmenu = function(e) {
					if (!e) { e = window.event; }
					// e is now the event in all browsers
					var targ;
					if (e.target) { targ = e.target; }
					else if (e.srcElement) { targ = e.srcElement; }
					if (targ.nodeType == 3) { // defeat Safari bug
						targ = targ.parentNode;
					}
					// targ is now the target element

					// We don't want to deprive the noble reader of a context menu
					// for the section edit link, do we?  (Might want to extend this
					// to all <a>'s?)
					if (targ.nodeName.toLowerCase() != 'a'
					|| targ.parentNode.className != 'editsection') {
						document.location = editHref;
						return false;
					}
					return true;
				};
			}
		}
	}
}

function setupCheckboxShiftClick() {
	if (document.getElementsByTagName) {
		var uls = document.getElementsByTagName('ul');
		var len = uls.length;
		for (var i = 0; i < len; ++i) {
			addCheckboxClickHandlers(uls[i]);
		}
	}
}

function addCheckboxClickHandlers(ul, start, finish) {
	if (ul.checkboxHandlersTimer) {
		clearInterval(ul.checkboxHandlersTimer);
	}
	if ( !ul.childNodes ) {
		return;
	}
	var len = ul.childNodes.length;
	if (len < 2) {
		return;
	}
	start = start || 0;
	finish = finish || start + 250;
	if ( finish > len ) { finish = len; }
	ul.checkboxes = ul.checkboxes || [];
	ul.lastCheckbox = ul.lastCheckbox || null;
	for (var i = start; i<finish; ++i) {
		var child = ul.childNodes[i];
		if ( child && child.childNodes && child.childNodes[0] ) {
			var cb = child.childNodes[0];
			if ( !cb.nodeName || cb.nodeName.toLowerCase() != 'input' ||
			     !cb.type || cb.type.toLowerCase() != 'checkbox' ) {
				return;
			}
			cb.index = ul.checkboxes.push(cb) - 1;
			cb.container = ul;
			cb.onmouseup = checkboxMouseupHandler;
		}
	}
	if (finish < len) {
	  var f=function(){ addCheckboxClickHandlers(ul, finish, finish+250); };
	  ul.checkboxHandlersTimer=setInterval(f, 200);
	}
}

function checkboxMouseupHandler(e) {
	if (typeof e == 'undefined') {
		e = window.event;
	}
	if ( !e.shiftKey || this.container.lastCheckbox === null ) {
		this.container.lastCheckbox = this.index;
		return true;
	}
	var endState = !this.checked;
	if ( is_opera ) { // opera has already toggled the checkbox by this point
		endState = !endState;
	}
	var start, finish;
	if ( this.index < this.container.lastCheckbox ) {
		start = this.index + 1;
		finish = this.container.lastCheckbox;
	} else {
		start = this.container.lastCheckbox;
		finish = this.index - 1;
	}
	for (var i = start; i <= finish; ++i ) {
		this.container.checkboxes[i].checked = endState;
	}
	this.container.lastCheckbox = this.index;
	return true;
}

function toggle_element_activation(ida,idb) {
	if (!document.getElementById) {
		return;
	}
	document.getElementById(ida).disabled=true;
	document.getElementById(idb).disabled=false;
}

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

function fillDestFilename(id) {
	if (!document.getElementById) {
		return;
	}
	var path = document.getElementById(id).value;
	// Find trailing part
	var slash = path.lastIndexOf('/');
	var backslash = path.lastIndexOf('\\');
	var fname;
	if (slash == -1 && backslash == -1) {
		fname = path;
	} else if (slash > backslash) {
		fname = path.substring(slash+1, 10000);
	} else {
		fname = path.substring(backslash+1, 10000);
	}

	// Capitalise first letter and replace spaces by underscores
	fname = fname.charAt(0).toUpperCase().concat(fname.substring(1,10000)).replace(/ /g, '_');

	// Output result
	var destFile = document.getElementById('wpDestFile');
	if (destFile) {
		destFile.value = fname;
	}
}


function considerChangingExpiryFocus() {
	if (!document.getElementById) {
		return;
	}
	var drop = document.getElementById('wpBlockExpiry');
	if (!drop) {
		return;
	}
	var field = document.getElementById('wpBlockOther');
	if (!field) {
		return;
	}
	var opt = drop.value;
	if (opt == 'other') {
		field.style.display = '';
	} else {
		field.style.display = 'none';
	}
}

function scrollEditBox() {
	var editBoxEl = document.getElementById("wpTextbox1");
	var scrollTopEl = document.getElementById("wpScrolltop");
	var editFormEl = document.getElementById("editform");

	if (editBoxEl && scrollTopEl) {
		if (scrollTopEl.value) { editBoxEl.scrollTop = scrollTopEl.value; }
		editFormEl.onsubmit = function() {
			document.getElementById("wpScrolltop").value = document.getElementById("wpTextbox1").scrollTop;
		};
	}
}

hookEvent("load", scrollEditBox);

var allmessages_nodelist = false;
var allmessages_modified = false;
var allmessages_timeout = false;
var allmessages_running = false;

function allmessagesmodified() {
	allmessages_modified = !allmessages_modified;
	allmessagesfilter();
}

function allmessagesfilter() {
	if ( allmessages_timeout )
		window.clearTimeout( allmessages_timeout );

	if ( !allmessages_running )
		allmessages_timeout = window.setTimeout( 'allmessagesfilter_do();', 500 );
}

function allmessagesfilter_do() {
	if ( !allmessages_nodelist )
		return;

	var text = document.getElementById('allmessagesinput').value;
	var nodef = allmessages_modified;

	allmessages_running = true;

	for ( var name in allmessages_nodelist ) {
		var nodes = allmessages_nodelist[name];
		var display = ( name.indexOf( text ) == -1 ? 'none' : '' );

		for ( var i = 0; i < nodes.length; i++)
			nodes[i].style.display =
				( nodes[i].className == "def" && nodef
				  ? 'none' : display );
	}

	if ( text != document.getElementById('allmessagesinput').value ||
	     nodef != allmessages_modified )
		allmessagesfilter_do();  // repeat

	allmessages_running = false;
}

function allmessagesfilter_init() {
	if ( allmessages_nodelist )
		return;

	var nodelist = new Array();
	var templist = new Array();

	var table = document.getElementById('allmessagestable');
	if ( !table ) return;

	var rows = document.getElementsByTagName('tr');
	for ( var i = 0; i < rows.length; i++ ) {
		var id = rows[i].getAttribute('id')
		if ( id && id.substring(0,16) != 'sp-allmessages-r' ) continue;
		templist[ id ] = rows[i];
	}

	var spans = table.getElementsByTagName('span');
	for ( var i = 0; i < spans.length; i++ ) {
		var id = spans[i].getAttribute('id')
		if ( id && id.substring(0,17) != 'sp-allmessages-i-' ) continue;
		if ( !spans[i].firstChild || spans[i].firstChild.nodeType != 3 ) continue;

		var nodes = new Array();
		var row1 = templist[ id.replace('i', 'r1') ];
		var row2 = templist[ id.replace('i', 'r2') ];

		if ( row1 ) nodes[nodes.length] = row1;
		if ( row2 ) nodes[nodes.length] = row2;
		nodelist[ spans[i].firstChild.nodeValue ] = nodes;
	}

	var k = document.getElementById('allmessagesfilter');
	if (k) { k.style.display = ''; }

	allmessages_nodelist = nodelist;
}

hookEvent( "load", allmessagesfilter_init );

/*
	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 arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	var arrRegExpClassNames = new Array();
	if(typeof oClassNames == "object"){
		for(var i=0; i<oClassNames.length; i++){
			arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)"));
		}
	}
	else{
		arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)"));
	}
	var oElement;
	var bMatchesAll;
	for(var j=0; j<arrElements.length; j++){
		oElement = arrElements[j];
		bMatchesAll = true;
		for(var k=0; k<arrRegExpClassNames.length; k++){
			if(!arrRegExpClassNames[k].test(oElement.className)){
				bMatchesAll = false;
				break;
			}
		}
		if(bMatchesAll){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}

function sortableTables() {
	if (getElementsByClassName(document, "table", "sortable").length != 0) {
		document.write('<script type="text/javascript" src="'+stylepath+'/common/sorttable.js?1"></script>');
	}
}

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 (window.location.hash == "")
				window.location.hash = fragment;
		});
	} else {
		if (window.location.hash == "")
			window.location.hash = fragment;
	}
}

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

	histrowinit();
	unhidetzbutton();
	tabbedprefs();
	akeytt( null );
	scrollEditBox();
	setupCheckboxShiftClick();
	sortableTables();

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

	doneOnloadHook = true;
}

//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);

hookEvent("load", mwSetupToolbar);

/*
oElm
    Mandatory. This is element in whose children you will look for the attribute.
strTagName
    Mandatory. This is the name of the HTML elements you want to look in. Use wildcard (*) if you want to look in all elements.
strAttributeName
    Mandatory. The name of the attribute you’re looking for.
strAttributeValue
    Optional. If you want the attribute you’re looking for to have a certain value as well. 
	
Examples:
	getElementsByAttribute(document.body, "*", "id");
	getElementsByAttribute(document.getElementById("the-form"), "input", "type", "text");
*/
function getElementsByAttribute(oElm, strTagName, strAttributeName, strAttributeValue){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	var oAttributeValue = (typeof strAttributeValue != "undefined")? new RegExp("(^|\s)" + strAttributeValue + "(\s|$)") : null;
	var oCurrent;
	var oAttribute;
	for(var i=0; i<arrElements.length; i++){
		oCurrent = arrElements[i];
		oAttribute = oCurrent.getAttribute && oCurrent.getAttribute(strAttributeName);
		if(typeof oAttribute == "string" && oAttribute.length > 0){
			if(typeof strAttributeValue == "undefined" || (oAttributeValue && oAttributeValue.test(oAttribute))){
				arrReturnElements.push(oCurrent);
			}
		}
	}
	return arrReturnElements;
}

/*Remove double border-right elements*/
function tab_border(){
	/*Get all <li> elements with a 'nr' attribute*/
	var nr = getElementsByAttribute(document.body, "li", "nr");
	/*Get all <a> elements with a 'link' attribute*/
	var link = getElementsByAttribute(document.body, "a", "link"); /*var link is undefined in Opera (9.21), thus the background isn't removed.*/
	/*Get all <li> with classname 'selected'. Take the previous <a> and set the background to 'none' */
	for (var i = 0; i < nr.length; i++) {
		/* i > 0 to prevent className for nr='-1' */
		/*alert(nr[i]+" "+link[i]+" "+nr[i].className+" "+i);*/
		if ((nr[i].className == "selected" || nr[i].className == "selected new") && i > 0) {
			link[i-1].style.background = "none";
		}		
	}
}

/*Display settings of the 'Articles By.." template on Main_Page*/
function sortingTemplate(tab){
	if(tab == "phase"){
		document.getElementById("phase").className = "activeContentHeader";
		document.getElementById("category").className = "contentHeader-rightBorder";
		document.getElementById("alphabet").className = "contentHeader-rightBorder";
		
		document.getElementById("a-bp").style.display = "block";
		document.getElementById("a-bc").style.display = "none";
		document.getElementById("a-ba").style.display = "none";
	}
	else if(tab == "category"){
		document.getElementById("phase").className = "contentHeader-leftBorder";
		document.getElementById("category").className = "activeContentHeader";
		document.getElementById("alphabet").className = "contentHeader-rightBorder";
		
		document.getElementById("a-bp").style.display = "none";
		document.getElementById("a-bc").style.display = "block";
		document.getElementById("a-ba").style.display = "none";
	}
	else if(tab == "alphabet"){
		document.getElementById("phase").className = "contentHeader-leftBorder";
		document.getElementById("category").className = "contentHeader-leftBorderDark";
		document.getElementById("alphabet").className = "activeContentHeader";
		
		document.getElementById("a-bp").style.display = "none";
		document.getElementById("a-bc").style.display = "none";
		document.getElementById("a-ba").style.display = "block";
	}
}

function enableTab(tab){
	
	total_tabs = parseInt(document.getElementById("main_tbl_tab").getAttribute("total_tabs"));
	//document.getElementById("mtab_content").innerHTML = document.getElementById("mtab" + tab).innerHTML;
	document.getElementById("mtab" + tab).style.display = 'block';
	
	if (tab == 0){
		for(i=1;i<=total_tabs;i++) {
		document.getElementById("mtab" + i).style.display = (i == tab ? 'block' : 'none');
		}	
	return true;
	}
	
	document.getElementById("mtab" + 0).style.display = 'none';
	
	for(i=1;i<=total_tabs;i++) {
		document.getElementById("mtab" + i).style.display = (i == tab ? 'block' : 'none');
			if (i < tab){
				document.getElementById("tb" + i).className = "contentHeader-leftBorderDark";
			}else{
				document.getElementById("tb" + i).className = "contentHeader-rightBorder";
			}
	}
		prevtab = (tab-1 < 1 ? 1 : tab-1);
		nexttab = (tab+1 > total_tabs ? total_tabs : tab + 1);
	
	document.getElementById("tb" + prevtab).className = "contentHeader-leftBorderDark";
	document.getElementById("tb" + '1').className = "contentHeader-leftBorder";
	document.getElementById("tb" + total_tabs).className = "emptyContentHeader2";
	document.getElementById("tb" + tab).className = "activeContentHeader";

enableRules(tab);
}

//Wikibits for uploading a file
function toggleUploadForm(emptyFields) {
	var crRadio = document.getElementsByName("copyright");
	
	for(c=0; c<crRadio.length; c++) {
		if(crRadio.length == 2) {
			var form = document.getElementById("formRadio"+(c+2));	
		} else {
			var form = document.getElementById("formRadio"+(c+1));
		}
		
		if(form) {
			if(crRadio[c].checked) {
				//Make the form appear
				form.style.display = "";
			} else {
				//Make the form disappear... Pooof!
				form.style.display = "none";
				
				if(!emptyFields) {
					document.getElementById('uploadsourcename').value = "";
					document.getElementById('uploadsourceurl').value = "http://";
					document.getElementById('uploadcopyrightname').value = "";
					document.getElementById('uploadcopyrightposition').value = "";
					document.getElementById('uploadcopyrightemail').value = "";
					document.getElementById('uploadcopyrightemailmessage').value = "";
				}
			}
		}
	}
}