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)

if (document.getElementById) {
	document.write('<style type="text/css">')
	document.write('.switchcontent{display:none;}')
	document.write('.switchcontent2{display:block;}')
	document.write('</style>')
}

function getElementbyClass(classname) {
	ccollect = new Array()
	var inc = 0
	var alltags = document.all ? document.all : document.getElementsByTagName("*")
	for (i = 0; i < alltags.length; i++) {
		if (alltags[i].className == classname)
			ccollect[inc++] = alltags[i]
	}
}

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

function up(cid) {
	document.getElementById(cid).style.display = "block"
}

function down(cid) {
	if (document.getElementById(cid).style.display != "none") {
		document.getElementById(cid).style.display = "none"
	}
}


function expandcontent(cid) {
	if (typeof ccollect != "undefined") {
		if (collapseprevious == "yes")
			contractcontent(cid)
		document.getElementById(cid).style.display = (document.getElementById(cid).style.display != "block") ? "block" : "none"
	}
}

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 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"
	getElementbyClass("switchcontent")
	if (enablepersist == "on" && typeof ccollect != "undefined") {
		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 (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