function setCookie(variabile,valore) {
	
	var expDays = 1000;
	var exp = new Date(); 
	exp.setTime(exp.getTime() + (expDays*24*60*60*1000));
	expdate=exp.toGMTString();
	document.cookie = ""+variabile+" ="+ valore+"; expires ="+ expdate+";";
	
}

function getCookie(name) { 
	
	var arg = name + "="; 
	var alen = arg.length; 
	var clen = document.cookie.length; 
	var i = 0; 
	
	while (i < clen) { 
		var j = i + alen; 
		
		if (document.cookie.substring(i, j) == arg) 
			return getCookieVal(j); 
	
		i = document.cookie.indexOf(" ", i) + 1; 
		if (i == 0) break; 
	} 
	
	return null;
	
}

function getCookieVal (offset) { 
	var endstr = document.cookie.indexOf (";", offset); 
	
	if (endstr == -1) 
		endstr = document.cookie.length; 
	
	return unescape(document.cookie.substring(offset, endstr));
}