About "no-cache"

Hi all, I am using cookie to write a counting page but when the page is refreshed, it will increase by 1 automatically. According to this problem, I used following lines but it doesn't work ---------------------------------------------------------------------------- -- header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); header ("Cache-Control: no-cache, must-revalidate"); header ("Pragma: no-cache"); ---------------------------------------------------------------------------- --- even I used html script <META HTTP-EQUIV="Pragma" CONTENT="no-cache"> <META HTTP-EQUIV="Expires" CONTENT="-1"> Well, Is there anyone who knows how to prevent the page to be cached? Thanks a lot