I think it happen on some machine which don't activate cookies. Maybe yo can try session to save resolution LuckyGuy354 IT Beginner http://www.wiwid.org ----- Original Message ----- From: "Roland Parijs" <uhibullura@xxxxxxxxx> To: <php-objects@xxxxxxxxxxxxxxx> Sent: Wednesday, August 08, 2007 2:49 PM Subject: Get Resolution > Dear All, > > I have a page in php which I wanted to have centered in all resolutions. I > have used a script which I fouund on the Internet called > get_resolution.php. It uses javascript to determine the client resolution > and puts it in a cookie, then php will red the cookie and puts it in a > variable which I can use to calculate the left and right margin. It works > perfect, but somtimes and on some machines I get the blanco page of > get_resolution, > > Any one any idear why this happens? > > Roland Parijs