function __construct()
    {
        parent::__construct();
        $this->id = I('id',0,'intval');
        $this->ajax = I('get.ajax',0,'intval');     

        $this->assign('__ID__',$this->id);
        $this->assign('__AJAX__',$this->ajax);
        $this->assign('__MY_HASH__',md5(time()));
        //$this->dao = M(MODULE_NAME);   
    }
 function __construct()
 {
     parent::__construct();
     $this->DEFAULT_OUT_TYPE = 'xml';
 }