public function getBannerImageSize($BannerImage,$BannerType)
	{
		switch ($BannerType)
		{
			case self::BANNER_TYPE_INTERN :
				return $this->getImageSizeInternal($BannerImage);
				break;
			case self::BANNER_TYPE_EXTERN :
				return $this->getImageSizeExternal($BannerImage);
				break;
			case self::BANNER_TYPE_TEXT :
				return false;
				break;
			default :
				return false;
			    break;
		}
	}