function setCookie(cookie_name, cookie_value, cookie_expires, path) {
	var expire_date = new Date();
	expire_date.setDate(expire_date.getDate()+cookie_expires);
	
	document.cookie = cookie_name + "=" + escape(cookie_value)+
	((cookie_expires == null) ? "" : ";expires=" + expire_date.toGMTString())+
	((path == null) ? "" : ";path=" + path);
}

function getCookie(sNome) {
	var asCookies = document.cookie.split("; ");
	for (var iCnt = 0; iCnt < asCookies.length; iCnt++) {
	var asCookie = asCookies[iCnt].split("=");
	if (sNome == asCookie[0]) {
		return (unescape(asCookie[1]));
    	}
  	}
	// SE non esiste il cookie richiesto
	return false;
}

function delCookie(sNome) {
	setCookie(sNome, "");
}