private void Button_Click(object sender, RoutedEventArgs e)
        {
            Welcome w = (Welcome)Window.GetWindow(this);

            w.frameMain.NavigationService.Navigate(new Login2());
        }
        private void btnPlay_Click(object sender, RoutedEventArgs e)
        {
            Welcome w = (Welcome)Window.GetWindow(this);

            w.frameMain.NavigationService.Navigate(new Game());
        }