title: Sharepoint DateTimeControl: set it to null
body: <p>how can I set the selected value of a Sharepoint DateTimeControl to null? When you first load it into a page, there's no value selected (even if the returned value is not properly null but one can check it with IsDateEmpty). How can i programmatically set it back to the initial, empty value?</p>
  
  <p>Thanks</p>