public function mostrar_fila($result, $fila)
 {
     foreach ($fila as $key => $data) {
         $field = mysql_field_name($result, $key);
         $data = $this->formato_campo($data, $field);
         if ($field == 'codigo') {
             print '<td field="codigo" style="display: none;">' . $data . '</td>';
         } else {
             print '<td field="" align="' . (is_numeric($data) && $field != 'codigo' ? 'right' : 'left') . '">' . $data . '</td>';
         }
     }
     print '<td class="funciones-tabla" align="right">' . parent::agregar_acciones($fila[0]) . '</td>';
 }