-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Just remember in web context is a server-side language ... so you couldn't have more information than client would want to send to you in web context, the navigator send some information to the server (like what navigator, address, proxy, ...) so ... has David show you, use javascript for example, and can your php which screen resolution : index.html: <script type="text/javascript"> location.href="index.php?h="+screen.heigth+"&w=" +screen.width; </script> => it will redirect to your php script which $_GET['h'] => heigth client resolution, and $_GET['w'] => width client resolution have fun -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (MingW32) - WinPT 1.0.1 iD8DBQFFm5XdEg3iyspSWPARAiwbAJ9bFE+m/oFAcka236Xnccjzb6YY/ACdFc8G FuH5WvpqWEEkhMK0cYHhvOc= =syLI -----END PGP SIGNATURE-----