var ns6=document.getElementById && !document.all;
var ie4=document.all;
var ns4=document.layers;
var opp=false;
if (document.all){ if (navigator.userAgent.search('Opera')>=0){ ie4=false; opp=true;} else {ie4=true; opp=false;}}


function createCookie(name,value,days) {
	if (days) {
			var date = new Date();
			date.setTime(date.getTime()+(days*24*60*60*1000));
			var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}
function eraseCookie(name) {
	createCookie(name,"",-1);
}
																															

function roll2_down(warstwa)
{
  if(ns6) { document.getElementById(warstwa).style.display=""; }
  if(ie4 || opp) { document.all[warstwa].style.display=""; } 

}
function roll2_up(warstwa)
{
  if(ns6) { document.getElementById(warstwa).style.display="none"; }
  if(ie4 || opp) { document.all[warstwa].style.display="none"; } 
  if(ns4) { document.layers[warstwa].visibility="hide"; }
 
}


function rollme2(id,ok)
{
var ggg="sitemenuitem2_"+id+"";
var czy_ok;
  if(ns6) { czy_ok=document.getElementById(ggg).style.display; }

  if(ie4 || opp) { czy_ok=document.all[ggg].style.display; } 
  if(ns4) { czy_ok=document.layers[ggg].visibility; }
  
if(czy_ok=='none' || czy_ok=='hidden') {
	roll2_down(ggg); 
if(ok==1) 
	{
		eraseCookie('menu_wup'); 
		createCookie('menu_wup',id,0);
	}
}
else {

roll2_up(ggg);
eraseCookie('menu_wup'); 
//eraseCookie('menu_wup['+id+']'); 

}
}