fjerne cookie

funktioner - internetinstillinger - slet coocies i din IE

setcookie ("TestCookie", "", time() - 3600);

Man sletter en cookie på samme måde som at sætte den, blot med en tom streng som indhold.

http://dk2.php.net/setcookie:
"Cookies must be deleted with the same parameters as they were set with. If the value argument is an empty string (""), and all other arguments match a previous call to setcookie, then the cookie with the specified name will be deleted from the remote client."