var menuwidth='165px' //default menu width
var menubgcolor='#FFFFFF'  //menu bgcolor
var disappeardelay=250  //menu disappear speed onMouseout (in miliseconds)
var hidemenu_onclick="yes" //hide menu when user clicks within menu?
var enableiframe=1  //1 or 0, for true or false

/////No further editting needed

var menu_ie4=document.all
var menu_ns6=document.getElementById&&!document.all

if (menu_ie4)
	document.write('<iframe id="iframe_dropdown" src="about:blank" style="position:absolute;display:none;z-index:50;" scrolling="no" frameborder="0"></iframe>')

if (menu_ie4||menu_ns6)
	document.write('<div id="dropmenudiv" style="visibility:hidden;width:'+menuwidth+';background-image: url(images/EN_US/Common/menu_bg.gif);background-repeat: repeat-x;background-position: bottom;background-color:'+menubgcolor+'" onMouseover="clearhidemenu()" onMouseout="dynamichide(event)"></div>')

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 (menu_ie4||menu_ns6)
		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")
		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=menu_ie4 && !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=menu_ie4 && !window.opera? iecompattest().scrollTop : window.pageYOffset
		var windowedge=menu_ie4 && !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 populatemenu(what){
	if (menu_ie4||menu_ns6)
		dropmenuobj.innerHTML=what.join("")
}


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

	if(enableiframe&&typeof iframeobj=='undefined')
	iframeobj=(iframeobj=document.getElementById('iframe_dropdown'))? iframeobj : null;

	populatemenu(menucontents)

	if (menu_ie4||menu_ns6){
		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"
		positioniframe() //call iframe function
	}

	return clickreturnvalue()
}

function clickreturnvalue(){
	if (menu_ie4||menu_ns6) return false
	else return true
}

function contains_menu_ns6(a, b) {
	while (b.parentNode)
	if ((b = b.parentNode) == a)
		return true;
	return false;
}

function dynamichide(e){
	if (menu_ie4&&!dropmenuobj.contains(e.toElement))
		delayhidemenu()
	else if (menu_ns6&&e.currentTarget!= e.relatedTarget&& !contains_menu_ns6(e.currentTarget, e.relatedTarget))
		delayhidemenu()
}

function hidemenu(e){
	if (typeof dropmenuobj!="undefined"){
		if (menu_ie4||menu_ns6)
			dropmenuobj.style.visibility="hidden"
	}
}

function delayhidemenu(){
	if (menu_ie4||menu_ns6)
		delayhide=setTimeout("hideiframe();hidemenu()",disappeardelay)
}

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

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

// additional function for showing menu image
function showImg(objname,imgstatus,imgtype) {
	if (imgstatus != 'on') {
		var imgname = document.getElementById(objname).src
		if (imgtype == 'off') {
			imgname = imgname.replace("_over.gif","_off.gif")
		} else {
			imgname = imgname.replace("_off.gif","_over.gif")
		}
		document.getElementById(objname).src=imgname
	}
}

function positioniframe(){ //display iframe_dropdown function
	if (enableiframe && iframeobj){
		if (dropmenuobj.style.visibility=="visible"){
			iframeobj.style.width=dropmenuobj.offsetWidth+"px"
			iframeobj.style.height=dropmenuobj.offsetHeight+"px"
			iframeobj.style.left=dropmenuobj.style.left
			iframeobj.style.top=dropmenuobj.style.top
		}
		iframeobj.style.display=(dropmenuobj.style.visibility=="visible")? "block" : "none"
	}
}

function hideiframe(){
	if (enableiframe && iframeobj)
		iframeobj.style.display='none'
}