/***********************************************
      * 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))
          }
        }
        //alert(returnvalue);
        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