private void silabas_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
 {
 	silabas sl = new silabas();
     sl.vtsilab.Show();
 }
 private void btsil_Click(object sender, RoutedEventArgs e)
 {
     silabas sl = new silabas();
     sl.vtsilab.Show();
 }