/***********************************************
  * Switch Content script- © Dynamic Drive (www.dynamicdrive.com)
  * This notice must stay intact for legal use. Last updated April 2nd, 2005.
  * Visit http://www.dynamicdrive.com/ for full source code
  ***********************************************/

  var enablepersist="off" //Enable saving state of content structure using session cookies? (on/off)
  var collapseprevious="no" //Collapse previously open content when opening present? (yes/no)

  var contractsymbol='&nbsp;<img src="/images/menminus.gif" align="absmiddle"> ' //HTML for contract symbol. For image, use: <img src="whatever.gif">
  var expandsymbol='&nbsp;<img src="/images/menplus.gif" align="absmiddle"> ' //HTML for expand symbol.


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

  function getElementbyClass(rootobj, classname){
  var temparray=new Array()
  var inc=0
  var rootlength=rootobj.length
  for (i=0; i<rootlength; i++){
  if (rootobj[i].className==classname)
  temparray[inc++]=rootobj[i]
  }
  return temparray
  }

  function sweeptoggle(ec){
  var thestate=(ec=="expand")? "block" : "none"
  var inc=0
  while (ccollect[inc]){
  ccollect[inc].style.display=thestate
  inc++
  }
  revivestatus()
  }


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

  function expandcontent(curobj, cid){
  var spantags=curobj.getElementsByTagName("SPAN")
  var showstateobj=getElementbyClass(spantags, "showstate")
  if (ccollect.length>0){
  if (collapseprevious=="yes")
  contractcontent(cid)
  document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="block")? "block" : "none"
  if (showstateobj.length>0){ //if "showstate" span exists in header
  if (collapseprevious=="no")
  showstateobj[0].innerHTML=(document.getElementById(cid).style.display=="block")? contractsymbol : expandsymbol
  else
  revivestatus()
  }
  }
  }

  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 revivestatus(){
  var inc=0
  while (statecollect[inc]){
  if (ccollect[inc].style.display=="block")
  statecollect[inc].innerHTML=contractsymbol
  else
  statecollect[inc].innerHTML=expandsymbol
  inc++
  }
  }

  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"
  var alltags=document.all? document.all : document.getElementsByTagName("*")
  ccollect=getElementbyClass(alltags, "switchcontent")
  statecollect=getElementbyClass(alltags, "showstate")
  if (enablepersist=="on" && ccollect.length>0){
  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 (ccollect.length>0 && statecollect.length>0)
  revivestatus()
  }

  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
  StkFunc(do_onload);

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