// JavaScript Document
//
// Switch Menu script
//Author Binu jose

var persistmenu="yes" //"yes" or "no". Make sure each SPAN content contains an incrementing ID starting at 1 (id="sub1", id="sub2", etc)
var persisttype="sitewide" //enter "sitewide" for menu to persist across site, "local" for this page only

if (document.getElementById){ 
document.write('<style type="text/css">\n')
document.write('.submenu{display: none;}\n')
document.write('</style>\n')

}

function SwitchMenu(obj){
	if(document.getElementById){
	var divNum= obj.substring(obj.length,obj.length-1);
	
	var el = document.getElementById(obj);
	var ar = document.getElementById("masterdiv").getElementsByTagName("span"); 
	
		if(el.style.display != "block"){ 
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="submenu") {
				ar[i].style.display = "none";
				}
				if (document.getElementById("spn"+i)){
				//document.getElementById("spn"+i).style.backgroundImage="url(/images/expand.gif)";
				document.getElementById("spn"+i).innerHTML="<img src='/images/expand.gif' border='0'>";
				}
			}
			el.style.display = "block";
			//document.getElementById("spn"+divNum).style.backgroundImage="url(/images/collapse.gif)";
			document.getElementById("spn"+divNum).innerHTML="<img src='/images/collapse.gif' border='0'>";
		}else{
			el.style.display = "none";
			//if (obj){
			//document.getElementById("spn"+divNum).style.backgroundImage="url(/images/expand.gif)";
			document.getElementById("spn"+divNum).innerHTML="<img src='/images/expand.gif' border='0'>";
			//}
		}
	}
}

function SwitchMenuTop(){
	if(document.getElementById){
	//var divNum= obj.substring(obj.length,obj.length-1);
	
	//var el = document.getElementById(obj);
	var ar = document.getElementById("masterdiv").getElementsByTagName("span"); 
	
		//if(el.style.display != "block"){ 
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="submenu"){
				ar[i].style.display = "none";
				}
				if (document.getElementById("spn"+i)){
				//document.getElementById("spn"+i).style.backgroundImage="url(/images/expand.gif)";
				document.getElementById("spn"+i).innerHTML="<img src='/images/expand.gif' border='0'>";
				}
			}
			//el.style.display = "block";
			//document.getElementById("div"+divNum).style.backgroundImage="url(/images/collapse.gif)";
		//}else{
			//el.style.display = "none";
			//if (obj){
			//document.getElementById("div"+divNum).style.backgroundImage="url(/images/expand.gif)";
			//}
		//}
	}
}


function get_cookie(Name) { 
var search = Name + "="
var returnvalue = "";
if (document.cookie.length > 0) {
offset = document.cookie.indexOf(search)
if (offset != -1) { 
offset += search.length
end = document.cookie.indexOf(";", offset);
if (end == -1) end = document.cookie.length;
returnvalue=unescape(document.cookie.substring(offset, end))
}
}
return returnvalue;
}

function onloadfunction(){
if (persistmenu=="yes"){
	var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname;
	var cookievalue=get_cookie(cookiename);
	if (cookievalue!=""){
		document.getElementById(cookievalue).style.display="block";
		var divNum= cookievalue.substring(cookievalue.length,cookievalue.length-1);
		if (document.getElementById("spn"+divNum)) {
			//document.getElementById("spn"+divNum).style.backgroundImage="url(/images/collapse.gif)";
			document.getElementById("spn"+divNum).innerHTML="<img src='/images/collapse.gif' border='0'>";
		}
	}
 }
}

function savemenustate(){
var inc=1, blockid=""
while (document.getElementById("sub"+inc)){
if (document.getElementById("sub"+inc).style.display=="block"){
blockid="sub"+inc
break
}
inc++
}
var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
var cookievalue=(persisttype=="sitewide")? blockid+";path=/" : blockid
document.cookie=cookiename+"="+cookievalue
}

if (window.addEventListener)
window.addEventListener("load", onloadfunction, false)
else if (window.attachEvent)
window.attachEvent("onload", onloadfunction)
else if (document.getElementById)
window.onload=onloadfunction

if (persistmenu=="yes" && document.getElementById)
window.onunload=savemenustate