Mouse Over effect for the Carousel

-- url of the page with the problem -- : 212.113.141.199/~pubnew/newcatalog/index.php/fa/
-- HikaShop version -- : 2.2.1
-- Joomla version -- : 2.5.14
To whom it may concern,

I've bought the HikaShop business and I'm very satisfied with it. Though there is a thing I need help with. So what I'm basically looking for is an Mouse Over effect for the Carousel I'm using. I tried something I found in the forum but it completely maximizes the image. I want the image to be a bit bigger than the others when I hover on it so that as the carousel is moving, and as I hover a product, not only the carousel stops but also the image of the product (book) I'm on gets a little bigger and not maximized in SPOTLIGHT. Can you help me with that? What piece of code should I add/modify in what css/php file? thanks

Blessings,
Simon