/***********************************************
* Contractible Headers script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var enablepersist="off" //Enable saving state of content structure? (on/off)

//if (document.getElementById){
//document.write('<style type="text/css">')
//document.write('.switchcontent{display:none;}')
//document.write('.ItemMouseOver{backgroundcolor: 999999;}')
//document.write('</style>')
//}

function hiLite(name) {  
  document.getElementById(name).style.color = '0000ff';
}

function loLite(name) {  
  document.getElementById(name).style.color = '003366';
}

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 changegraphic(cid, img) {
 
 //close the arrow that was selected
 document.images[img].src = arrow_off;
 
	//close all graphics
	//var inc=0
 //alert(img);
	//while (ccollect[inc]){
		//inc++
		//document.images['arrow' + inc].src = arrow_off;
	//}

	//open current graphic if needed
	if (document.getElementById(cid).style.display != 'block') {
		document.images[img].src = arrow_on;
	}
}

function expandcontent(cid, img){

	if (typeof ccollect!="undefined"){
		//contractcontent(cid)
		changegraphic(cid, img)
		document.getElementById(cid).style.display=(document.getElementById(cid).style.display!="block")? "block" : "none"
		selectedItem=cid+"|"+document.getElementById(cid).style.display
	}

}

function revivecontent(){
selectedItem=getselectedItem()
selectedComponents=selectedItem.split("|")
contractcontent(selectedComponents[0])
document.getElementById(selectedComponents[0]).style.display=selectedComponents[1]
}

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(){
if (typeof selectedItem!="undefined")
document.cookie=window.location.pathname+"="+selectedItem
}

function do_onload(){
getElementbyClass("switchcontent")
if (enablepersist=="on" && getselectedItem()!="")
revivecontent()
if (open_subnav_layer != 0) {
	expandcontent(open_subnav_layer, open_subnav_image);
}
}


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