public function actionIndex()
    {
        $this->layout = 'nosignin';
        $model = new LoginForm();
        if(isset($_POST['ajax']) && $_POST['ajax']==='login-form')
        {
            echo CActiveForm::validate($model);
            Yii::app()->end();
        }
        if(isset($_POST["LoginForm"]))
        {
            $model->username = $_POST["LoginForm"]["username"];
            $model->password = $_POST["LoginForm"]["password"];



            // collect user input data

            $model->scenario = 'login';
            $model->username = $_POST["LoginForm"]["username"];
            $model->password = $_POST["LoginForm"]["password"];
            $model->rememberMe = $_POST["LoginForm"]["password"];
            if($model->validate() && $model->login())
            {
                Yii::app()->controller->redirect(array('/home'));
            }

            // display the login form

        }


        $this->render('index',array('model'=>$model));
    }