Array.prototype.inArray = function (value) {
	var i;
	for (i=0; i < this.length; i++) {
		if (this[i] === value) {
			return true;
		}
	}
	return false;
};

function addEvent( obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}
	
var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();
addEvent(window,'unload',EventCache.flush);

function addClass(element,value) {
	if (!element.className) {
		element.className = value;
	} else {
		newClassName = element.className;
		newClassName+= " ";
		newClassName+= value;
		element.className = newClassName;
	}
}

/* grab Elements from the DOM by className */
function getElementsByClass(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null )
		node = document;
	if ( tag == null )
		tag = '*';
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

// striped rows for data tables
function stripeTables() {
	if (!document.getElementsByTagName) return false;
	var tables = document.getElementsByTagName("table");
	for (var i=0; i<tables.length; i++) {
		var tableDataClass = tables[i].className;
		if (tableDataClass == "tblDataStriped") {
			var odd = false;
			var rows = tables[i].getElementsByTagName("tr");
			for (var j=0; j<rows.length; j++) {
				// stripe odd rows
				if (odd == true) {
					addClass(rows[j],"odd");
					odd = false;
				} else {
					odd = true;
				}
			}
		}
	}
}
addEvent(window,'load',stripeTables);

// instructional text for pages with glossary items
function loadGlossary(){
	var oDFNs=document.getElementsByTagName('dfn');
	if(oDFNs.length>0){
		var oGlossary=document.getElementById('glossary');
		var oInfoRoll=document.createElement('p');
		oInfoRoll.innerHTML="Roll over the <em class=\"glossary\">green</em> words with a dotted underline to view a definition.";
		oGlossary.appendChild(oInfoRoll);
		var oInfoLink=document.createElement('p');
		oInfoLink.innerHTML="A full listing of terms is available in the <a href=\"/en/glossary.aspx\" title=\"Go to a full listing of glossary terms.\">glossary</a>.";
		oGlossary.appendChild(oInfoLink);
	} 	
}

// feature (Flash) popups
function popUp(){
	var aLinks=getElementsByClass('popLink');
	for (var iLength=aLinks.length-1;iLength>=0;iLength--){
		aLinks[iLength].onclick=function(){
			LeftPosition = (screen.width) ? (screen.width-700)/2 : 0;
			TopPosition = (screen.height) ? (screen.height-400)/2 : 0;
			var newWin=window.open(this.href,'popUp','width=700,height=400,top='+TopPosition+',left='+LeftPosition+',location=no,menubar=no,status=no,toolbar=no,scrollbars=no,resizable=no');
			if(window.focus){newWin.focus()}
			return false;
		}
	}
}
addEvent(window,'load',popUp);

// feature (Flash) popups for webcasts
function popUpWebcasts(){
	var aLinks=getElementsByClass('popLinkWebcasts');
	for (var iLength=aLinks.length-1;iLength>=0;iLength--){
		aLinks[iLength].onclick=function(){
			LeftPosition = (screen.width) ? (screen.width-640)/2 : 0;
			TopPosition = (screen.height) ? (screen.height-400)/2 : 0;
			var newWin=window.open(this.href,'popUpWebcasts','width=640,height=525,top='+TopPosition+',left='+LeftPosition+',location=no,menubar=no,status=no,toolbar=no,scrollbars=no,resizable=no');
			if(window.focus){newWin.focus()}
			return false;
		}
	}
}
addEvent(window,'load',popUpWebcasts);


// popMainWin
function popMainWin(url){
	window.opener.focus();
	window.opener.location.href = url;
}

// popNewWin
function popNewWin(url){
	window.open(url,'popNewWin');
}

/*
Sweet Titles (c) Creative Commons 2005
http://creativecommons.org/licenses/by-sa/2.5/
Author: Dustin Diaz | http://www.dustindiaz.com
*/
var sweetTitles = { 
	xCord : 0,								// @Number: x pixel value of current cursor position
	yCord : 0,								// @Number: y pixel value of current cursor position
	tipElements : ['dfn','ins'],			// @Array: Allowable elements that can have the toolTip
	obj : Object,							// @Element: That of which you're hovering over
	tip : Object,							// @Element: The actual toolTip itself
	active : 0,								// @Number: 0: Not Active || 1: Active
	init : function() {
		if ( !document.getElementById ||
			!document.createElement ||
			!document.getElementsByTagName ) {
			return;
		}
		var i,j;
		this.tip = document.createElement('div');
		this.tip.id = 'toolTip';
		document.getElementsByTagName('body')[0].appendChild(this.tip);
		this.tip.style.top = '0';
		this.tip.style.visibility = 'hidden';
		var tipLen = this.tipElements.length;
		for ( i=0; i<tipLen; i++ ) {
			var current = document.getElementsByTagName(this.tipElements[i]);
			var curLen = current.length;
			for ( j=0; j<curLen; j++ ) {
				addEvent(current[j],'mouseover',this.tipOver);
				addEvent(current[j],'mouseout',this.tipOut);
				current[j].setAttribute('tip',current[j].title);
				current[j].removeAttribute('title');
			}
		}
	},
	updateXY : function(e) {
		if ( document.captureEvents ) {
			sweetTitles.xCord = e.pageX;
			sweetTitles.yCord = e.pageY;
		} else if ( window.event.clientX ) {
			sweetTitles.xCord = window.event.clientX+document.documentElement.scrollLeft;
			sweetTitles.yCord = window.event.clientY+document.documentElement.scrollTop;
		}
	},
	tipOut: function() {
		if ( window.tID ) {
			clearTimeout(tID);
		}
		if ( window.opacityID ) {
			clearTimeout(opacityID);
		}
		sweetTitles.tip.style.visibility = 'hidden';
	},
	checkNode : function() {
		var trueObj = this.obj;
		if ( this.tipElements.inArray(trueObj.nodeName.toLowerCase()) ) {
			return trueObj;
		} else {
			return trueObj.parentNode;
		}
	},
	tipOver : function(e) {
		sweetTitles.obj = this;
		tID = window.setTimeout("sweetTitles.tipShow()",50);
		sweetTitles.updateXY(e);
	},
	tipShow : function() {		
		var scrX = Number(this.xCord);
		var scrY = Number(this.yCord);
		var tp = parseInt(scrY+15);
		var lt = parseInt(scrX+10);
		var anch = this.checkNode();
		var addy = '';
		var access = '';
		if ( anch.nodeName.toLowerCase() == 'a' ) {
			addy = (anch.href.length > 25 ? anch.href.toString().substring(0,25)+"..." : anch.href);
			// var access = ( anch.accessKey ? ' <span>['+anch.accessKey+']</span> ' : '' );
		} else {
			addy = anch.firstChild.nodeValue;
		}
		if ( anch.nodeName.toLowerCase() == 'ins' ) {
			this.tip.innerHTML = "<p>" + anch.getAttribute('tip') + "</p>";
		} else {
			this.tip.innerHTML = "<p><strong>" + addy + ": </strong>" + anch.getAttribute('tip') + "</p>";
		}
		if ( parseInt(document.documentElement.clientWidth+document.documentElement.scrollLeft) < parseInt(this.tip.offsetWidth+lt) ) {
			this.tip.style.left = parseInt(lt-(this.tip.offsetWidth+10))+'px';
		} else {
			this.tip.style.left = lt+'px';
		}
		if ( parseInt(document.documentElement.clientHeight+document.documentElement.scrollTop) < parseInt(this.tip.offsetHeight+tp) ) {
			this.tip.style.top = parseInt(tp-(this.tip.offsetHeight+10))+'px';
		} else {
			this.tip.style.top = tp+'px';
		}
		this.tip.style.visibility = 'visible';
		this.tip.style.opacity = '1';
		this.tipFade(100);
	},
	tipFade: function(opac) {
		var passed = parseInt(opac);
		var newOpac = parseInt(passed+10);
		if ( newOpac < 80 ) {
			this.tip.style.opacity = '.'+newOpac;
			this.tip.style.filter = "alpha(opacity:"+newOpac+")";
			opacityID = window.setTimeout("sweetTitles.tipFade('"+newOpac+"')",20);
		}
		else { 
			this.tip.style.opacity = '1';
			this.tip.style.filter = "alpha(opacity:100)";
		}
	}
};
function pageLoader() {
	sweetTitles.init();
}
addEvent(window,'load',pageLoader);
addEvent(window,'load',loadGlossary);