where to put my functions

I want to integrate some visual basic code that I wrote in visual basic 2008 express edition into a web site that is being created with visual web developer.

My applications has a a bunch of functions in a module. How should I put this into my web developer project and use it? I don't see an add module under the add new items menu. Is a web service the equivalent? thanks.

Add a new class library or just add a new class to your project, add your code there.