Select quanity in category

-- url of the page with the problem -- : hartlandtroop380.com
-- HikaShop version -- : Starter: 2.2.3
-- Joomla version -- : 3.2
-- PHP version -- : 5.4.23
-- Browser(s) name and version -- : firefox
-- Error-message(debug-mod must be tuned on) -- : none

I am trying to change the add to cart button in the product category to the ajax quanity cart button. I can get the ajax on the product page but not on the category page. Here are some screen shots to show what I mean.

You can do like that:
www.hikashop.com/forum/4-how-to/24521-ho...t-listing.html#24537

It worked. Thanks. Had to add it to quantity.php