Storing data from several forms of the same type in an array

I would like to store data from several forms (same form, different data) so that the info can be written to a database all at once. The reason being is that I would like to have all this information tied to information from a general form. eg. I have a general information form in one frame on my page, and then in another frame below a form for a specific item purchased. You can purchase several items, therefore several forms filled out. I want to tie all these items to the info in the general form, so I want to be able to send all the data to the database at once. Now I'm wondering if I can store the data in an arrray in the HTTP body and post data from each form to it, etc. I don't think its possible but .....can anyone help?? regards