public function processSetDefaultFeeAction()
 {
     $guid = $this->_getParam('guid');
     $fee = $this->_getParam('fee');
     $fs = new FeeSchedule();
     $data = __('Failed to set default fee.');
     if ($fs->setDefaultFee($fee, $guid)) {
         $data = __('Default fee successfully set.');
     }
     $json = Zend_Controller_Action_HelperBroker::getStaticHelper('json');
     $json->suppressExit = true;
     $json->direct($data);
 }