function Picker1_onSelectionChanged(sender, eventArgs) {
    Calendar1.setSelectedDate(Picker1.getSelectedDate());
}
function Calendar1_onSelectionChanged(sender, eventArgs) {
    Picker1.setSelectedDate(Calendar1.getSelectedDate());
}
function PickerDatum_onSelectionChanged(sender, eventArgs) {
    CalDatum.setSelectedDate(PickerDatum.getSelectedDate());
}
function CalDatum_onSelectionChanged(sender, eventArgs) {
    PickerDatum.setSelectedDate(CalDatum.getSelectedDate());
}