have the form save upon Open

[JR]

basically, i want a form to be saved every time it is opened.

i have a field, called "Popularity," that increments whenever the form is
opened...therefore, if the user does not save that form, the new value is
lost.

my first reaction was to go to:
tools -> form options -> open and save
but the option to save is not under the open behavior rules (nor is the
option to write your own code).

any ideas ??

thanks!
JR