header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // datum v minulosti header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // vdy upraven header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 header ("Pragma: no-cache"); // HTTP/1.0 extract($_REQUEST); ?>