Dynamic Selects - Dynamic View

I've implemented Ryan Bates's Dynamic Select modules as done here:
http://railscasts.com/episodes/88-dynamic-select-menus

I have a Category select (hardware, software, media...)
Based on the Category, I have a Product select (if hardware is chosen,
then PC, Monitor, Printer...)

That all works.

But now I would like to show the product.description below the
selected Product.

HELP!??!?!

Thanks for any input.....

Can you show the code in the corresponding views and controllers?

Thanks and sure thing:

javascripts controller:

  def dynamic_products
    @products = Product.find(:all)
  end

Do I need to create another javascript to populate descriptions? I'm
stuck... please help!