function httpFile( $release = false )
    {
        if ( isset( $this->ContentObjectAttributeData['DataTypeCustom']['http_file'] ) )
        {
            $httpFile = $this->ContentObjectAttributeData['DataTypeCustom']['http_file'];
            if ( $release )
            {
                unset( $this->ContentObjectAttributeData['DataTypeCustom']['http_file'] );
            }
            return $httpFile;
        }

        return false;
    }