I have two fields I would like to reference each other. For instance, I have a category of expenses (Airfare, Parking, etc.) that I would like the user to select from a drop-down box. Is there anyway for this field to reference an account number and put it in, say, a textbox field, next to the list box when an expense is chosen? There are about 15 account numbers. It isn't in a huge database; I am making this completely on my own.