Issue with elastislide and Firefox or Safari

[pribeiro78]

I have made a responsive website with bootstrap and I've used Elastislide gallery but I have an issue in Firefox and Safari. The thumbnails are not presented in the gallery, it only shows the first picture. Sometimes when I refresh the page it shows the thumbs but when I click them it sends to the top of the page. You can see the page here:

http://zunatur.com/lang/en/index.html

Anyone with the same issue?! Any help is aprecciated.