stecmedia on "Using script value in shortcode"

Hi
I am currently working on a site for a client, which needs a price generator. The pricing generator is javascript, and works like this:
Test version
(View the code by using your browser's source text function)

I would now like to take the chosen values and the result and add to the shortcode for my shop-plugin, which looks like this:

[wp_cart_button name="VALUE 1 to VALUE 2" price="RESULT"]

This is where the shop is located, if you would like to view that as well.

The plugin is WP Simple Paypal Shopping cart v3.8.5

I hope this is the right forum, and thanks in advance. Just ask if you need more information, I'm here to get help ;)