When I click on a product thumbnail, I get an overlay with a big picture of the product with a small animation. It works on all browsers, except IE9. I tried your demo website, and I don't have any problems with that one...
Normally, when you click on an image in the product listing, you will go to the product page. Instead of that, I changed the code that clicking on an image, results in a bigger sized image. (like you told me to do so in this topic:
www.hikashop.com/en/forum/4-how-to/46848...instead-of-page.html
)
The website is located at:
www.phenico.be
It's not hikashop related, but the frontpage slideshow doesn't work neither on IE9