private void btnOK_Click(object sender, RoutedEventArgs e)
 {
     if (HighScoreManager.IsHighScore(scorenum))
     {
         HighScoreEnter HSEnter = new HighScoreEnter();
         HSEnter.gameScore.Text = Convert.ToString(scorenum);
         HSEnter.Show();
         this.Close();
     }
 }
        private void btnPitty_Click(object sender, RoutedEventArgs e)
        {
            IsPitty   = true;
            scorenum += 1000;
            HighScoreEnter hsEnt = new HighScoreEnter();

            hsEnt.gameScore.Text = Convert.ToString(1000);
            hsEnt.Show();
            this.Close();
        }