'image/jpeg',
'gif' => 'image/gif',
'png' => 'image/png'
);
header('Content-Type: '.$mime[strtolower($r[1])]);
header('Content-Length: '.filesize('./'.$_GET['file']));
header('Cache-Control: max-age=36000');
header('Pragma: public');
readfile('./'.$_GET['file']);
exit;
?>