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 el = document.getElementById(obj);
		var ar = document.getElementById("menu-left").getElementsByTagName("ul");
		if(el.style.display != "block"){
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="submenu")
					ar[i].style.display = "none";
			}
			el.style.display = "block";
		}else{
			el.style.display = "none";
		}
	}
}

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"
	}
}

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;