var expire_days = 30;
	var expire_date = new Date();
	var ms_from_now = expire_days * 24 * 60 * 60 * 1000;
	expire_date.setTime(expire_date.getTime() + ms_from_now);
	var expire_string = expire_date.toGMTString();
	document.cookie = "lastPage=" + window.location.href + ";expires=Sun, 31 Jan 2010 23:00:00 UTC;path=/ ";