Image filtering problem

Good morning, sir,

I created my gallery with several filters and assigned the images to the corresponding filters. But when I test in front, the gallery is displayed but when I click on the filters, the images don’t filter, I always have the same list. Why do I have the same list?

Page concerned : http://www.store-haute-savoie.fr/nos-realisations/

Thanks in advance.

The page I need help with: [log in to see the link]