// JavaScript Document

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



var menuElements = new Array();

var selectedMenuId = "";



if (document.getElementById){

document.write('<style type="text/css">\n')

document.write('.submenu{display: none;}\n')

document.write('.sub_main{display: none;}\n')

document.write('</style>\n')

}



function SwitchMenu(obj)

{

	if(document.getElementById)

  {

	  var el = document.getElementById(obj);



    if (el.style.display != "block")

    {

      for (var i = 0; i < menuElements.length; i++)

      {

        document.getElementById(menuElements[i]).style.display = "none";

      }

      var menuLevels = obj.substr(3).split("_");

      var idString = "";

      for (var i = 0; i < menuLevels.length; i++)

      {

        if (idString == "")

        {

          idString = "sub" + menuLevels[i];

        }

        else

        {

          idString = idString + "_" + menuLevels[i];

        }

        var ar = document.getElementById(idString);

        ar.style.display = "block";

      }

      selectedMenuId = idString;

    }

    else

    {

      selectedMenuId = "";

      el.style.display = "none";

      for (var i = 0; i < menuElements.length; i++)

      {

        if (document.getElementById(menuElements[i]).style.display == "block")

        {

          selectedMenuId = menuElements[i];

        }

      }

    }

  }

}



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 el = document.getElementById("sidebar_nav");

  if (!(el))

  {

    return;

  }

  el = el.getElementsByTagName("ul");

  for (var i = 0; i < el.length; i++)

  {

    if (el[i].id.substr(0, 3) == "sub")

    {

      menuElements[menuElements.length] = el[i].id;

    }

  }



  if (persistmenu=="yes")

  {

    var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname

    var cookievalue=get_cookie(cookiename)

    if (cookievalue!="")

    {

      SwitchMenu(cookievalue);

    }

  }

}



function savemenustate()

{

  var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname

  var cookievalue=(persisttype=="sitewide")? selectedMenuId + ";path=/" : selectedMenuId

  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