How can I get Access to add 14 days to a Date field 1

[cut2please]

I wish to add 14 days to a date field automatically each time a date is entered and the results to show in the date field (entered in the form and the results to show immediately in the form and the table).


Thank you

 

[PWise]

on the after update of the text box

me.datefieldname = me.dateentryname + 14