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)

var contractsymbol='<img src="../\../\images/\minus_blue.gif" border="0" alt="Close">&nbsp;&nbsp;' //HTML for contract symbol. For image, use: <img src="whatever.gif">
var expandsymbol='<img src="../\../\images/\plus_blue.gif" border="0" alt="Expand">&nbsp;&nbsp;' //HTML for expand symbol.

var minusImage = new Image;
minusImage.src="../../images/minus_blue.gif";

var plusImage = new Image;
plusImage.src="../../images/plus_blue.gif";

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

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;
}

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
}
var anchorQuery = false;
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(anchorQuery){			
		loadFaqs();		
	}
}

function doMetrics(itemTxt, cid) {
	//grab page url
	var pageURL = window.location;

	//strip domain from pageURL
	strpdPageURL = new String(pageURL);
	strpdPageURL2 = strpdPageURL.replace(/(http:\/\/)[\w\d\.\-\_]+/i, '');

	//define action (expand or contract content)
	var actionIndicator = "";
	if (cid == "expand_all") {
	  actionIndicator = 'PRG+';
	} else if (cid == "collapse_all") {
	  actionIndicator = 'PRG-';
	} else if (document.getElementById) {
	  actionIndicator = (document.getElementById(cid).style.display=="block")? 'PRG+' : 'PRG-';
	}

	//buld s_pageName param
	s_pageName = strpdPageURL2 + " : " + actionIndicator + " : " + itemTxt + " :";   

	//alert(s_pageName);
	sendAnalyticsEvent(s_pageName);
}