// open a window given URL, name, and features
function openAd() {
	window.open('advertisement.html','Advertisement','width=320,height=240,scrollbars=no,resizable=no'); 
}



/***********************************************
* Switch Content script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use. Last updated April 2nd, 2005.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

	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='' //HTML for contract symbol. For image, use: <img src="whatever.gif">
	var expandsymbol='Read More' //HTML for expand symbol.
	
	
	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()
			}
		}
	}
	
	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