cookies with super global arrays

Hi all, I can ACCESS a cookie with something like: <?=$_COOKIE['name']?> but I can't seem to modify a cookie in the same way: <? $_COOKIE['name'] = "new value"; ?> Much in the same way that I *can* do it with $_SESSION. To change the value of a cookie, I seem to have to set it again, with the different values. I *assume* this is expected behaviour, but I thought I'd check, and make sure that it is. If at all possible, it'd be a great feature in a future release... have $_COOKIE respond to new values the same way as $_SESSION. I guess the catch is that it'd have to be PRIOR to any browser output, to avoid errors. Justin French