}
//////////////////////////////////////////////////////////////////////////////////////////////////
// make image
/**
* the time() at the end of the address is just to keep the image from being cached
* <img id="captcha_img" src="./captcha/cf.captcha.php?img=<?=time();?>" />
*
*/
if (isset($_GET['img'])) {
$capt = new captcha();
if (isset($_GET['bg'])) {
//$capt->transparent_bg(false);
//$capt->bg_color($_GET['bg']);
$capt->colorshad = 'd';
}
$capt->add_wave();
$capt->display();
exit;
}
//////////////////////////////////////////////////////////////////////////////////////////////////
// captcha Class
class captcha
{
private $UserString;
/**
* The width of the captcha image
* @var integer
*/
private $width = 120;
/**
* The height of the captcha image
