public DrillRunning()
        {
            InitializeComponent();
            drill = (App.Current as App).CurrentDrill;
            if (drill != null)
            {
                drill.UI = this;
                currentrepsval = drill.repPosition.ToString();
                totalrepsval = drill.Reps.Count.ToString();
                drill.go();

            }
            else
            {
                NavigationService.Navigate(new Uri("/MainPage.xaml", UriKind.Relative));
            }
        }