public function init_button($field)
    {
        $this->on('click', '.do-'.$field)->univ()->ajaxec(array(
            $this->app->url(),
            $field => $a = $this->js()->_selectorThis()->data('id'),
            $this->name.'_'.$field => $a,
            ));

        /*
        $this->columns[$field]['thparam'] .= ' style="width: 40px; text-align: center"';
        $this->js(true)->find('.button_'.$field)->button();
        */
    }