How to display 'sold out' in product div/div

-- url of the page with the problem -- : mywebsite.com/mypage
-- HikaShop version -- : Businnes 2.2.3
-- Joomla version -- : 3.2.1
-- PHP version -- : x.x.x
-- Browser(s) name and version -- : XXXXX x.x.x
-- Error-message(debug-mod must be tuned on) -- : Error_message

Hello,

Ihave several categories. When someone clicks on one he get a product view like your website example 'product div/div'. In this overview you see a button under each product to choose this one. If you do you get the product details and can click to add to cart.
But when a product is sold out I want to show that to the visitors of the site in the first overview (product div/div). Now you see it only in the product detail screen.

How can I show 'sold out' in a category div/div overview when a product has zero stock?