* @param integer $fCode set it to anything but 0 to create an error response
* @param string $fString the error string, in case of an error response
* @param string $valType either 'xmlrpcvals', 'phpvals' or 'xml'
*
* @todo add check that $val / $fCode / $fString is of correct type???
* @param integer $fCode set it to anything but 0 to create an error response
* @param string $fString the error string, in case of an error response
* @param string $valType either 'xmlrpcvals', 'phpvals' or 'xml'
*
* @todo add check that $val / $fCode / $fString is of correct type???