function saveCookie(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 eraseCookie(name) {
    saveCookie(name,"",-1);
}