<?

Error_Reporting(E_ALL & ~E_NOTICE);



$a=$_GET["a"];
$n=(int)$_GET["n"];
if (!ereg($a,'abcdef')) {$a=''; echo 'error'; exit;}
if (($n<1) && ($n>11)) {$a=''; echo 'error'; exit;}

$file='mapp/'.$a.$n.'.jpg';
#echo $file;
header("Cache-Control: public"); 
header("Expires: " . date("r", time() + 3600*24*365)); 
header('Content-Type: image/jpeg');
echo @implode('', file ($file));

?>