protected function getCaptchaAction()
	{
		if(($captcha=Yii::app()->getController()->createAction($this->captchaAction))===null)
		{
			if(strpos($this->captchaAction,'/')!==false) // contains controller or module
			{
				if(($ca=Yii::app()->createController($this->captchaAction))!==null)
				{
					list($controller,$actionID)=$ca;
					$captcha=$controller->createAction($actionID);
				}
			}
			if($captcha===null)
				throw new CException(Yii::t('yii','CCaptchaValidator.action "{id}" is invalid. Unable to find such an action in the current controller.',
						array('{id}'=>$this->captchaAction)));
		}
		return $captcha;
	}