Drop Down Selection

I have a fairly basic form build in ASP that is in need of an additional function. Currently there are two menu items, each needs to be coded dependent of each other. For example, select merchant category from the main drop down selection, the merchants within the category populates the second drop down selection. The categories/sub categories are extracted from two tables in a MS access database, which is already coded to read from the database. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform ASP MS Access, IIS 5.0 Windows Server 2000.