private void hsap_Click(object sender, RoutedEventArgs e)
{
//var xd = XDocument.Load("trains.xml");
//IEnumerable<System.Xml.Linq.XElement> bus = from el in xd.Descendants("Bus")
// where el.Attribute("lineNumber").Value == "m1"
// select el;
App.LoadBus("m1");
Frame.Navigate(typeof(TimeSchedule));
}