PHP Cookies

Hvorfor bliver disse cookies ikke sat??

<?
session_start();

$ip = $_SERVER["REMOTE_ADDR"];
if ($_GET["mode"] != "auto"){
        $user = $_SESSION["atc_user"];
        $time = time() + 86400 * 30;
        setcookie("atc_autologin_pass","Sj583#g85G8!duf0qhad7D7fFrF74D7rfArQugm57lr0Y", $time, 1);
        setcookie("atc_autologin_user",$user, $time, 1);
?>