var disappeardelay=250  //menu disappear speed onMouseout (in miliseconds)
var enableanchorlink=0 //Enable or disable the anchor link when clicked on? (1=e, 0=d)
var hidemenu_onclick=1 //hide menu when user clicks within menu? (1=yes, 0=no)

/////No further editting needed

var ie5=document.all
var ns6=document.getElementById&&!document.all

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){
	if (ie5||ns6)
		dropmenuobj.style.left=dropmenuobj.style.top=-500
	if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover"){
		obj.visibility=visible
	} else if (e.type=="click"){
		obj.visibility=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=ie5 && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
		dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
		if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
			edgeoffset=dropmenuobj.contentmeasure-obj.offsetWidth
	} else {
		var topedge=ie5 && !window.opera? iecompattest().scrollTop : window.pageYOffset
		var windowedge=ie5 && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
		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 dropdownmenu(obj, e, dropmenuID, isTop){
	var e=window.event || e
	var topmenuoffset=(typeof isTop!="undefined")? 6 : 0
	if (window.event) event.cancelBubble=true
	else if (e.stopPropagation) e.stopPropagation()
	if (typeof dropmenuobj!="undefined") //hide previous menu
		dropmenuobj.style.visibility="hidden"
	clearhidemenu()
	if (ie5||ns6){
		obj.onmouseout=delayhidemenu
		dropmenuobj=document.getElementById(dropmenuID)
		if (hidemenu_onclick) dropmenuobj.onclick=function(){
			dropmenuobj.style.visibility='hidden'
		}
		dropmenuobj.onmouseover=clearhidemenu
		dropmenuobj.onmouseout=ie5? function(){ dynamichide(event)} : function(event){ dynamichide(event)}
		showhide(dropmenuobj.style, e, "visible", "hidden")
		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-topmenuoffset+"px"
	}
	return clickreturnvalue()
}

function clickreturnvalue(){
	if ((ie5||ns6) && !enableanchorlink) return false
	else return true
}

function contains_ns6(a, b) {
	while (b.parentNode)
	if ((b = b.parentNode) == a)
		return true;
	return false;
}

function dynamichide(e){
	if (ie5&&!dropmenuobj.contains(e.toElement))
		delayhidemenu()
	else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
		delayhidemenu()
}

function delayhidemenu(){
	delayhide=setTimeout("dropmenuobj.style.visibility='hidden'",disappeardelay)
}

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

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

function overlay(curobj, subobj){
	if (document.getElementById){
		var subobj=document.getElementById(subobj)
		subobj.style.left=getposOffset(curobj, "left")+"px"
		subobj.style.top=getposOffset(curobj, "top")+"px"
		subobj.style.display="block" 
		return false
	}
	else
		return true
}

function overlayclose(subobj){
	document.getElementById(subobj).style.display="none"
}

////Random Order Contents script////////////

function randomizeContent(classname){
	var contents=randomizeContent.collectElementbyClass(classname)
	contents.text.sort(function() {return 0.5 - Math.random();})
	for (var i=0; i<contents.ref.length; i++){
		contents.ref[i].innerHTML=contents.text[i]
		contents.ref[i].style.visibility="visible"
	}
	}
	
	randomizeContent.collectElementbyClass=function(classname){ //return two arrays containing elements with specified classname, plus their innerHTML content
	var classnameRE=new RegExp("(^|\\s+)"+classname+"($|\\s+)", "i") //regular expression to screen for classname within element
	var contentobj=new Object()
	contentobj.ref=new Array() //array containing references to the participating contents
	contentobj.text=new Array() //array containing participating contents' contents (innerHTML property)
	var alltags=document.all? document.all : document.getElementsByTagName("*")
	for (var i=0; i<alltags.length; i++){
		if (typeof alltags[i].className=="string" && alltags[i].className.search(classnameRE)!=-1){
			contentobj.ref[contentobj.ref.length]=alltags[i]
			contentobj.text[contentobj.text.length]=alltags[i].innerHTML
		}
	}
	return contentobj
}

////Dynamic Assign event handler////////////

function assignmyevents(){
	var topitem1=document.getElementById("topnavitem1")
	var topitem2=document.getElementById("topnavitem2")
	var topitem3=document.getElementById("topnavitem3")
	var topitem4=document.getElementById("topnavitem4")
	//var topitem5=document.getElementById("topnavitem5")
	//var topitem6=document.getElementById("topnavitem6")
	//var topitem7=document.getElementById("topnavitem7")
	//var topitem8=document.getElementById("topnavitem8")

	topitem1.onmouseover=function(event){
		dropdownmenu(this, event, 'anylinktopnav1')
	}
	topitem2.onmouseover=function(event){
		dropdownmenu(this, event, 'anylinktopnav2')
	}
	topitem3.onmouseover=function(event){
		dropdownmenu(this, event, 'anylinktopnav3')
	}
	topitem4.onmouseover=function(event){
		dropdownmenu(this, event, 'anylinktopnav4')
	}
//	topitem5.onmouseover=function(event){
//		dropdownmenu(this, event, 'anylinktopnav5')
//	}
//	topitem6.onmouseover=function(event){
//		dropdownmenu(this, event, 'anylinktopnav6')
//	}

}