'<form id="user_search" action="'.$controller->url_for('admin/user/edit').'" method="post">'
                ->withButton(array('width' => 200))
                ->fireJSFunctionOnSelect("selectUser")
                ->render()
            . '</form>'
            . '<script>
                var selectUser = function (user_id, name) {
                    document.location = "'.$controller->url_for('admin/user/edit').'/" + user_id;
                };
              </script>'