function set_cookie(nazwa, wartosc, expire)
{
	document.cookie = nazwa + "=" + escape(wartosc) + ((expire==null)?"" : ("; expires=" + expire.toGMTString()))
}

function return_cookie (nazwa)
{
	if (document.cookie!="")
	{
		var toCookie=document.cookie.split("; ");
		for (i=0; i<toCookie.length; i++)
		{
			var nazwaCookie=toCookie[i].split("=")[0];
			var wartoscCookie=toCookie[i].split("=")[1];
			if (nazwaCookie==nazwa) return unescape(wartoscCookie);
		}
	}
	else
	{
		var wartoscCookie="";
		return wartoscCookie;
	}
}

function delete_cookie (nazwa)
{
	var cookie_date = new Date();
	if (document.cookie!="")
	{
		cookie_date.setTime ( cookie_date.getTime() - 1 );
		document.cookie = nazwa += "=; expires=" + cookie_date.toGMTString();
	}
}

function pageload()
{
	var modeCookie = return_cookie("modeType");
	if(modeCookie!="")
	{
		delete_cookie("modeType");
		for (var n = 0; n < menu_item.length; ++n)
		{
			if(menu_item[n] == modeCookie)
			{
				opensite(menu_item[n]);
			}
		}
		if (modeCookie == "mapa") opensite('mapa');
		else
		{
			for (var n = 0; n < menu_item.length; ++n)
			{
				if(modeCookie.indexOf(menu_item[n]) != -1)
				{
					opensite(menu_item[n]);
					if (modeCookie!="kontakt") parent.content.location.href = modeCookie+".html";
				}
			}
		}
	}
	else opensite('portfolio');
}