Searching word(s) in a variable set of fields

Hi list.

I need to select some records from an Access database via a VBScript ASP, something like a search engine………the selected records must be the ones that contain one or more words (specified by the user) in one, or two, or three fields choose by the user as well.

This second part is creating troubles to me, how can I write a re-usable code to get the specified fields and to put them in the querystring?

Thanks in advance for any help.

Marco