var persistmenu="no"; //"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;