CCaptcha::Output

function Output()
{
	header("Expires: Sun, 1 Jan 2000 12:00:00 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");
	header("Content-Type: image/jpeg");
	$this->CreateImage();
	$this->ShowImage();
	$this->DestroyImage();
}