Is it possible to show/hide drop down menus in the access 2003 custom startup menu bar

Hi all

I am using Access 2003 for my Staff Roster data base project with Windows Vista Pro. This suits me fine.

I have a custom menu bar that loads when Access starts and would like to be able to show/hide drop down menus in the custom menu bar according to which staff have logged on, Manager, Supervisor, Staff etc.

Is this possible?

Pancho