Need Javascript Help with Ecwid on a Wordpress Site

We have a wordpress site that we are using the ecwid e-commerce plugin with. we have done a lot of the work so far and we need assistance with the following: - We need to incorporate a CAPTCHA (or something similar) prior to the final checkout page of ecwid - We need to include a quantity input control on the product details page Both of the items above are documented lightly on the Ecwid forums but we need a Javascript expert to decipher just how to do it and execute it! Wordpress version: 3.5.2 Ecwid level: Venture