= count($_SESSION['names'])) {
$cur=0;
}
// error_log("no new file $cur");
}
$_SESSION['key'] = $cur;
// Date in the past
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
// always modified
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
// HTTP/1.1
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
// HTTP/1.0
header("Pragma: no-cache");
Header("Content-Type: image/png");
$name=$names[$cur];
header("Content-Length: " . filesize($name));
$fp=fopen($name,"rb");
// dump the picture and stop the script
fpassthru($fp);