public function actionRegister(){
        $model=new RegisterForm;
        if(isset($_POST['RegisterForm'])){
            $model->attributes=$_POST['RegisterForm'];
            if($model->validate()){
                $model1=new User;
                $model1->username = $model->name;
                $model1->password = $model->password;
                $model1->mail = $model->email;
                if($model1->save()){
                    Yii::app()->user->setFlash('register','It worked!');
                    $this->refresh();
                }
            }
        }
        $this->render('register',array('model'=>$model));
    }