/***********************************************
* 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("menudiv").getElementsByTagName("div"); //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