public function newfieldAction()
{
$id = $_POST['id'];
$donVis = Khcn_Api::_()->getDbTable('don_vi', 'default')->getDonVisAssoc();
unset($donVis['1']);
$defaultDonVi = 2;
$dvOptions = array("multiOptions" => $donVis);
$ma_don_vi = new Zend_Form_Element_Select('don_vi_' . $id, $dvOptions);
$ma_don_vi->setRequired(true)->setValue($defaultDonVi)->setDecorators(Khcn_Form_Decorator_Select::getDecorator())->setAttribs(array('id' => 'don_vi_' . $id, 'onchange' => 'change(this,' . $id . ')'));
$gvOptions = array("multiOptions" => Khcn_Api::_()->getDbTable('giang_vien', 'default')->getGiangViensByDonViAssoc($defaultDonVi));
$thanh_vien = new Zend_Form_Element_Select('thanh_vien_' . $id, $gvOptions);
$thanh_vien->setRequired(true)->setDecorators(Khcn_Form_Decorator_Select::getDecorator())->setAttribs(array('class' => 'text-input', 'id' => 'thanh_vien_' . $id));
$result = '<tr id="dk_tv_' . $id . '"><td></td><td><fieldset><legend>Thành viên</legend>';
$result .= $ma_don_vi->__toString() . $thanh_vien->__toString();
$result .= '</td></fieldset></tr>';
echo $result;
$this->_helper->viewRenderer->setNoRender();
$this->_helper->layout()->disableLayout();
}
