/*
 * User-definable variables for the dropdowns.
 */
var disappearDelay=250  //menu disappear speed onMouseout (in miliseconds)
var menuWidth='250px' //default menu width
var menuBGColor='F1F2FE'  //menu bgcolor
var onClickHideMenu="yes" //hide menu when user clicks within menu?
var displayDelay=500

/*
 * Init.
 */
var usingIE=document.all
var usingNS=document.getElementById&&!document.all
var mouseIsOver = false;
var mouseIsOut = false;

if (usingIE||usingNS)
	document.write('<div id="dropmenudiv" style="visibility:hidden;width:'+menuWidth+';background-color:'+menuBGColor+'" onMouseover="clearhidemenu()" onMouseout="dynamichide(event)"></div>')

/*
 * Functions
 */

function reloadForVerticals() {
	window.location.reload(false);
}

function setMouseVals(overEvent, outEvent) {
	mouseIsOver = overEvent;
	mouseIsOut = outEvent;
}

function makeObjVis(obj,visibility) {
	if (visibility == "visible") {
		if (mouseIsOver) {
			obj.visibility = visibility;
			makeAllOverlaps('hidden');
		}
	} else {
		makeAllOverlaps('visible');
	}
}

function makeAllOverlaps(visibility) {
	var allObjectTags = document.getElementsByTagName('object');
	var allEmbedTags = document.getElementsByTagName('embed');
	for( var t = 0; t < allEmbedTags.length; t++ ) {
		allEmbedTags[t].style.visibility = visibility;
	}
	for( var t = 0; t < allObjectTags.length; t++ ) {
		allObjectTags[t].style.visibility = visibility;
	}
	if (usingIE) {
		var allSelectTags = document.getElementsByTagName('select');
		for( var t = 0; t < allSelectTags.length; t++ ) {
			allSelectTags[t].style.visibility = visibility;
		}
	}
}

function getposOffset(what, offsettype) {
	var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
	var parentEl=what.offsetParent;
	while (parentEl!=null){
		totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
		parentEl=parentEl.offsetParent;
	}
	return totaloffset;
}

function showhide(obj, e, visible, hidden, menuWidth){
	if (usingIE||usingNS)
		dropmenuobj.style.left=dropmenuobj.style.top="-500px"
	if (menuWidth!=""){
		dropmenuobj.widthobj=dropmenuobj.style
		dropmenuobj.widthobj.width=menuWidth
	}
	if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover") {
		var self = this; 
		setTimeout(function(){ self.makeObjVis(obj,"visible"); }, displayDelay); 
	} else if (e.type=="click") {
		makeObjVis(obj,"hidden");
	}
}

function iecompattest(){
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function clearbrowseredge(obj, whichedge){
	var edgeoffset=0
	if (whichedge=="rightedge"){
		//var windowedge=usingIE && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-5 : window.pageXOffset+window.innerWidth-5
		var windowedge=!window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-5 : window.pageXOffset+window.innerWidth-5
		dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
		if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
			edgeoffset=dropmenuobj.contentmeasure-obj.offsetWidth
	}else{
		var topedge=usingIE && !window.opera? iecompattest().scrollTop : window.pageYOffset
		var windowedge=usingIE && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-5 : window.pageYOffset+window.innerHeight-5
		dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
		if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure){ //move up?
			edgeoffset=dropmenuobj.contentmeasure+obj.offsetHeight
			if ((dropmenuobj.y-topedge)<dropmenuobj.contentmeasure) //up no good either?
				edgeoffset=dropmenuobj.y+obj.offsetHeight-topedge
		}
	}
	return edgeoffset
}

function populatemenu(what){
	if (usingIE||usingNS) {
		dropmenuobj.innerHTML='<table border=0 cellspacing=4 cellpadding=0 width="100%">' + what.join("") + '</table>'
	}
}


function dropdownmenu(obj, e, menucontents, menuWidth){
	if (window.event)
		event.cancelBubble=true
	else if
		(e.stopPropagation) e.stopPropagation()
	clearhidemenu()
	dropmenuobj=document.getElementById? document.getElementById("dropmenudiv") : dropmenudiv
	populatemenu(menucontents)
	if (usingIE||usingNS){
		showhide(dropmenuobj.style, e, "visible", "hidden", menuWidth)
		dropmenuobj.x=getposOffset(obj, "left")
		dropmenuobj.y=getposOffset(obj, "top")
		dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"
		dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
	}
	return clickreturnvalue()
}

function clickreturnvalue(){
	if (usingIE||usingNS)
		return false
	else
		return true
}

function contains_usingNS(a, b) {
	while (b.parentNode)
		if ((b = b.parentNode) == a)
			return true;
	return false;
}

function dynamichide(e){
	if (usingIE&&!dropmenuobj.contains(e.toElement))
		delayhidemenu()
	else if (usingNS&&e.currentTarget!= e.relatedTarget&& !contains_usingNS(e.currentTarget, e.relatedTarget))
		delayhidemenu()
}

function hidemenu(e){
	if (typeof dropmenuobj!="undefined"){
		if (usingIE||usingNS) {
			dropmenuobj.style.visibility="hidden"
			makeAllOverlaps('visible');
		}
	}
}

function delayhidemenu(){
	if (usingIE||usingNS)
		delayhide=setTimeout("hidemenu()",disappearDelay)
}

function clearhidemenu(){
	if (typeof delayhide!="undefined")
		clearTimeout(delayhide)
}

if (onClickHideMenu=="yes")
	document.onclick=hidemenu