function display($defines, $additionalFormFields = null)
 {
     global $sugar_config;
     if ($sugar_config['fact_deactivate_applet']) {
         return null;
     }
     $mode = $defines['mode'] ? strtoupper($defines['mode']) : 'XML';
     if ($mode == 'XML' && ($defines['focus']->reg_invoices_type != "factura" || !($defines['focus']->number > 0))) {
         return null;
     }
     return parent::display($defines, $additionalFormFields = null);
 }