/***********************************************
* 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
***********************************************/

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 parent = document.getElementById("menu-" + obj);
		if(el.style.display != "block"){ //DynamicDrive.com change
			el.style.display = "block";
      parent.className = "menutitle expanded";
		}else{
			el.style.display = "none";
      parent.className = "menutitle collapsed";
		}
	}
}

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(){
  var cookievalue = get_cookie("switchmenu");
  if (cookievalue != "") {
    var cookieList = cookievalue.split(",");
    for (var i = 0; i < cookieList.length; i++) {
      document.getElementById(cookieList[i]).style.display = "block"
      document.getElementById("menu-" + cookieList[i]).className = "menutitle expanded";
    }
  }
}

function savemenustate(){

  var blocks = "";
  var spans = document.getElementsByTagName("span"); //DynamicDrive.com change
  for (var i = 0; i < spans.length; i++ ) {
    if (spans[i].className == "submenu" && spans[i].style.display == "block") {
      if (blocks != "") {
        blocks += ",";
      }
      blocks += spans[i].id;
    }
  }

  document.cookie = "switchmenu=" + blocks + ";path=/" ;
}

if (window.addEventListener)
  window.addEventListener("load", onloadfunction, false)
else if (window.attachEvent)
  window.attachEvent("onload", onloadfunction)
else if (document.getElementById)
  window.onload = onloadfunction

if (document.getElementById)
  window.onunload = savemenustate