/***********************************************
	* Switch Content script II- © 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 memoryduration="7" //persistence in # of days
	
	var contractsymbol='minus.gif' //Path to image to represent contract state.
	var expandsymbol='plus.gif' //Path to image to represent expand state.
	
	/////No need to edit beyond here //////////////////////////
	
	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 inc=0
	while (ccollect[inc]){
	ccollect[inc].style.display=(ec=="contract")? "none" : ""
	inc++
	}
	//revivestatus()
	}
	
	
	function expandcontent(curobj, cid){
	if (ccollect.length>0){
	document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="none")? "none" : ""
	curobj.src=(document.getElementById(cid).style.display=="none")? expandsymbol : contractsymbol
	}
	}
	
	function revivecontent(){
	selectedItem=getselectedItem()
	selectedComponents=selectedItem.split("|")
	for (i=0; i<selectedComponents.length-1; i++)
	document.getElementById(selectedComponents[i]).style.display="none"
	}
	
	function revivestatus(){
	var inc=0
	while (statecollect[inc]){
	if (ccollect[inc].style.display=="none")
	statecollect[inc].src=expandsymbol
	else
	statecollect[inc].src=contractsymbol
	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=="none")
	selectedItem+=ccollect[inc].id+"|"
	inc++
	}
	if (get_cookie(window.location.pathname)!=selectedItem){ //only update cookie if current states differ from cookie's
	var expireDate = new Date()
	expireDate.setDate(expireDate.getDate()+parseInt(memoryduration))
	document.cookie = window.location.pathname+"="+selectedItem+";path=/;expires=" + expireDate.toGMTString()
	}
	}
	
	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" && get_cookie(window.location.pathname)!="" && ccollect.length>0)
	revivecontent()
	if (ccollect.length>0 && statecollect.length>0)
	//revivestatus()
	
	sweeptoggle('contract')
	}
	
	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