/***
* Contractible Headers Script-
* This notice must stay intact for legal use. Last updated Mar 23rd, 2004.
* Visit http://www.dynamicdrive.com/ for full source code
***/
var enablepersist="on" //Enable saving state of content structure using session cookies? (on/off)
var collapseprevious="no" //Collapse previously open content when opening present? (yes/no)

   if (document.getElementById)
   {document.write('<style type="text/css">')
	document.write('.switchcontent{display:none;}')
	document.write('</style>')
   }

   function getElementbyClass(classname)
   {ccollect=new Array()
	var inc=0
	var alltags=document.all? document.all : document.getElementsByTagName("*")
	for (i=0; i<alltags.length; i++)
	{if (alltags[i].className==classname)
	 ccollect[inc++]=alltags[i]
	}
   }

   function contractcontent(omit)
   {var inc=0
    while (ccollect[inc])
	{if (ccollect[inc].id!=omit)
     ccollect[inc].style.display="none"
     inc++
    }
   }

   function expandcontent(cid)
   {if (typeof ccollect!="undefined")
    {if (collapseprevious=="yes")
     contractcontent(cid)
     document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="block")? "block" : "none"
    }
   }

   function revivecontent()
   {contractcontent("omitnothing")
    selectedItem=getselectedItem()
    selectedComponents=selectedItem.split("|")
    for (i=0; i<selectedComponents.length-1; i++)
    document.getElementById(selectedComponents[i]).style.display="block"
   }

   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 getselectedItem()
   {if (get_cookie(window.location.pathname) != "")
    {selectedItem=get_cookie(window.location.pathname)
     return selectedItem
    }
    else
    return ""
   }

   function saveswitchstate()
   {var inc=0, selectedItem=""
    while (ccollect[inc]){
    if (ccollect[inc].style.display=="block")
    selectedItem+=ccollect[inc].id+"|"
    inc++
   }

   document.cookie=window.location.pathname+"="+selectedItem
  }

  function do_onload()
  {uniqueidn=window.location.pathname+"firsttimeload"
   getElementbyClass("switchcontent")
   if (enablepersist=="on" && typeof ccollect!="undefined")
   {document.cookie=(get_cookie(uniqueidn)=="")? uniqueidn+"=1" : uniqueidn+"=0" 
    firsttimeload=(get_cookie(uniqueidn)==1)? 1 : 0 //check if this is 1st page load
    if (!firsttimeload)
     revivecontent()
    }
   }
   if (window.addEventListener)
   window.addEventListener("load", do_onload, false)
   else if (window.attachEvent)
   window.attachEvent("onload", do_onload)
   else if (document.getElementById)
   window.onload=do_onload

   if (enablepersist=="on" && document.getElementById)
   window.onunload=saveswitchstate