/***********************************************
* Switch Content script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use. Last updated Oct 21st, 2003.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var enablepersist="on" //Enable saving state of content structure using session cookies? (on/off)
var collapseprevious="yes" //Collapse previously open content when opening present? (yes/no)

var contractsymbol='<img src="../img/min.png" width="11" height="11" align="absmiddle" border="0">' //HTML for contract symbol. For image, use: <img src="whatever.gif">
var expandsymbol='<img src="../img/plus.png" width="11" height="11" align="absmiddle" border="0">' //HTML for expand symbol.



if (document.getElementById) {
	document.write('<style type="text/css">')
	document.write('.switchcontent{display:none;padding-left:20px;padding-top:15px}')
	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 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() {
	getElementbyClass("switchcontent")
	if (enablepersist=="on" && typeof ccollect!="undefined")
	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