function getRecaptchaField()
 {
     $field = null;
     $spamProtector = SpamProtectorManager::get_spam_protector();
     if ($spamProtector == "RecaptchaProtector") {
         $field = new RecaptchaField("Recaptcha", "Please enter text");
         $field->jsOptions = array('theme' => 'clean');
         $field->addExtraClass("required");
     }
     return $field;
 }