/***********************************************
* 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 ('</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 != "block"){ //DynamicDrive.com change
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="submenu") //DynamicDrive.com change
				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;
}