//Hides and displays the sidebar

var remember_barstate="on" //(on/off)
var persistance_duration="7" //persistence in # of days


var contractsymbol='/themes/ntheme/images/minus_bottom.png' //Path to image to represent contract state.
var expandsymbol='/themes/ntheme/images/plus_bottom.png' //Path to image to represent expand state.


function state_save_func(){
	var inc=0, selectedItem=""
	while (ccollect[inc]){
		if (ccollect[inc].style.display=="none")
			selectedItem+=ccollect[inc].id+"|"
		inc++
	}
	if (get_cookie(window.location.pathname)!=selectedItem){ //only update cookie if current states differ from cookie's
		var expireDate = new Date()
		expireDate.setDate(expireDate.getDate()+parseInt(persistance_duration))
		document.cookie = window.location.pathname+"="+selectedItem+";path=/;expires=" + expireDate.toGMTString()
	}
}


function ElementtoClassConv(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 toggle_ccollect_disp(ec){
	var inc=0
	while (ccollect[inc]){
		ccollect[inc].style.display=(ec=="contract")? "none" : ""
		inc++
	}
	revivestatus()
}


function content_init(curobj, cid){
	if (ccollect.length>0){
		document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="none")? "none" : ""
		curobj.src=(document.getElementById(cid).style.display=="none")? expandsymbol : contractsymbol
	}
}

function revivecontent(){
	selectedItem=element_get_sel()
	selectedComponents=selectedItem.split("|")
	for (i=0; i<selectedComponents.length-1; i++)
		document.getElementById(selectedComponents[i]).style.display="none"
}

function revivestatus(){
	var inc=0
	while (statecollect[inc]){
		if (ccollect[inc].style.display=="none")
			statecollect[inc].src=expandsymbol
		else
			statecollect[inc].src=contractsymbol
		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 element_get_sel(){
if (get_cookie(window.location.pathname) != ""){
selectedItem=get_cookie(window.location.pathname)
return selectedItem
}
else
return ""
}

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




function initiate_body_load(){
uniqueidn=window.location.pathname+"firsttimeload"
var alltags=document.all? document.all : document.getElementsByTagName("*")
ccollect=ElementtoClassConv(alltags, "switchcontent")
statecollect=ElementtoClassConv(alltags, "showstate")
if (remember_barstate=="on" && get_cookie(window.location.pathname)!="" && ccollect.length>0)
revivecontent()
if (ccollect.length>0 && statecollect.length>0)
revivestatus()
}



if (window.addEventListener)
window.addEventListener("load", initiate_body_load, false)
else if (window.attachEvent)
window.attachEvent("onload", initiate_body_load)
else if (document.getElementById)
window.onload=initiate_body_load

if (remember_barstate=="on" && document.getElementById)
window.onunload=state_save_func