响应式Javascript无法在其中一个页面上运行

I just implented a responsive design for www.star-registration.com. It seems to work fine on most of the browsers but on some the startpage www.star-registration.com isn't working but www.star-registration.com/order/ and all other pages work fine. The problem occurs when I use firefox and resize the browser. I quess it's because of the Javascript files I just implented a responsive design for www.st