var enablepersist = "on";
var collapseprevious = "yes";

var contractsymbol = '-  ';
var expandsymbol = '+  ';


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();
					}
			}
		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;