jQuery Forum

Though this answer is 3 years old, it does not seem to catch the enter key until after the datepicker code has already done its thing on the typed in value.  Same thing with blur and onsubmit functions that try to correct typed in date formats; datepicker has already intervened and replaced the value in the text input by the time those functions are called when enter key is pressed.  blur works to correct a format if there is a blur event and not a submit event.