public function _update() {
$r= new JTContactus($_SESSION['login_user_id']);
$r->select($_POST['id']);
if( empty($r->data['reply']) && !empty($_POST['reply']) || ($r->data['reply']!=$_POST['reply']) ) $_POST['reply_date']=JDate::now();
$r->setFields($_POST);
$r->update();
$this->addAlert(new JAlert('更新完成','告知訊息',"./?action=edit&id={$_POST['id']}"));
$this->action('edit', $_POST['id']);
}
