/***********************************************
* Switch Menu script- by Martial B of http://getElementById.com/
* Modified by Dynamic Drive for format & NS4/IE4 compatibility
* Visit http://www.dynamicdrive.com/ for full source code
*
* Modified by Thomas Nottveit (designer and developer for this website(http://nornen-innebandy.no)) for:
*    - Use of ul-TAG instead of span-TAG
*    - Use of "+" and "-" before the menu-text, indicating if the menu are respectively closed or open
*    - Code for remember which menu that will have a "-" before the menu-text, when loading the website (onloadfunction)
***********************************************/

var persistmenu="yes"
var persisttype="sitewide"

if (document.getElementById){ //DynamicDrive.com change
	document.write('<style type="text/css">\n')
	document.write('.submenu{display: none;}\n')
	document.write('</style>\n')
}

function SwitchMenu(obj){
	if(document.getElementById){
		var el = document.getElementById(obj);
		var ar = document.getElementById("meny").getElementsByTagName("ul"); //DynamicDrive.com change

		var indeks = 0;
		for(var j=0; j<ar.length; j++){
			if(ar[j]==el){
				indeks = j-1;
			}
		}
		
		//Added by Thomas Nottveit
		var div = document.getElementById("meny").getElementsByTagName("div");

		if(el.style.display != "block"){ //DynamicDrive.com change
			for (var i=0; i<ar.length; i++){
				if (ar[i].className=="submenu") //DynamicDrive.com change
				ar[i].style.display = "none";
				
				//Added by Thomas Nottveit
				if(div[i].className=="overnav1"){
					div[i].innerHTML="+"+div[i].innerHTML.substring(1);
				}
			}
			el.style.display = "block";
			
			//Added by Thomas Nottveit
			if(div[indeks].className=="overnav1"){
				div[indeks].innerHTML="-"+div[indeks].innerHTML.substring(1);
			}
		}else{
			el.style.display = "none";
			
			//Added by Thomas Nottveit
			if(div[indeks].className=="overnav1"){
				div[indeks].innerHTML="+"+div[indeks].innerHTML.substring(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 onloadfunction(){
	if (persistmenu=="yes"){
		var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
		var cookievalue=get_cookie(cookiename)
		if (cookievalue!=""){
			document.getElementById(cookievalue).style.display="block"

			//Added by Thomas Nottveit
			openElement = document.getElementById(cookievalue);

			//Added by Thomas Nottveit
			var submenu = document.getElementById("meny").getElementsByTagName("ul");
	
			//Added by Thomas Nottveit
			var index = 0;
			for(var k=0; k<submenu.length; k++){
				if(submenu[k]==openElement){
					index = k-1;
				}
			}
	
			//Added by Thomas Nottveit
			var div = document.getElementById("meny").getElementsByTagName("div");
			
			//Added by Thomas Nottveit
			if(div[index].className=="overnav1"){
				div[index].innerHTML="-"+div[index].innerHTML.substring(1);
			}	
		}		
	}
}

function savemenustate(){
	var inc=1, blockid=""
	while (document.getElementById("sub"+inc)){
		if (document.getElementById("sub"+inc).style.display=="block"){
			blockid="sub"+inc
			break
		}
		inc++
	}
	
	var cookiename=(persisttype=="sitewide")? "switchmenu" : window.location.pathname
	var cookievalue=(persisttype=="sitewide")? blockid+";path=/" : blockid
	document.cookie=cookiename+"="+cookievalue
}

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

if (persistmenu=="yes" && document.getElementById)
	window.onunload=savemenustate