//Code to show or hide FAQ answers

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='<img src="/images/arrow-down.gif" height="8" width="8">'
var expandsymbol='<img src="/images/arrow-side.gif" height="8" width="8">'


if (document.getElementById) {
	document.write('<style type="text/css">')
	document.write('.switchcontent{display:none;margin: 0px 0px 0px 12px;}')
	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


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