function GetCaptchaObject() { $captchaId = LBD_StringHelper::Normalize($_GET['c']); if (!LBD_StringHelper::HasValue($captchaId) || !LBD_CaptchaBase::IsValidCaptchaId($captchaId)) { return; } $captcha = new LBD_CaptchaBase($captchaId); return $captcha; }