//adsolute date
//hour,minute,second,month,day,year
$lifetime = mktime(0,0,12,1,2002);
//midnight .01.12.2002
$lifetime = mktime(12, 50, 30, 6, 20, 2010);
//12:50:30 20.06.2010
setcookie("cookiename", "value", $lifetime);
/ this is another way but for some reason you may have problems setting it for a year /
$lifetime = time() + 86400 *30; //30 days..
