Add form element button to Yootheme Zoo Products

I have set up a site using Yootheme Zoo product catalogue, allowing users to list free items. On each product view I need a "Contact" button which then brings up a form with the following fields: Product reference (taken from product id) Your Name Your Email Address Message Send button This form would then be sent to the item owner via the email address listed on product (this should be hidden) PM me for web access to assess project scope