/***********************************************
* Switch Menu script- by Martial B of http://getElementById.com/
* Modified by Dynamic Drive for format & NS4/IE4 compatibility
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

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

function SwitchMenu(obj){
	if(document.getElementById){
	var el = document.getElementById(obj);
	var ar = document.getElementById("masterdiv").getElementsByTagName("span"); //DynamicDrive.com change
		if(el.style.display != "none"){ //DynamicDrive.com change
			//for (var i=0; i<ar.length; i++){ //do the alternate switch
				//if (ar[i].className=="submenu") //DynamicDrive.com change
				//ar[i].style.display = "none";
			//}
			el.style.display = "none";

		}else{
			el.style.display = "block";
}
	}
}

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