function send_no_cache_header () { 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-store, no-cache, must-revalidate" ); header ( "Cache-Control: post-check=0, pre-check=0", false ); header ( "Pragma: no-cache" ); } send_no_cache_header(); ?>