It must have been so awesome that it crashed my browser, so I couldn’t really see what was behind it. Try right clicking on the page. If it’s made by Adobe Flash then it’s probably not achievable for you, but if it’s not, i.e. you don’t get a Flash right-click popup window, it’s probably JavaScript.
If it’s an open JavaScript library that’s doing it it’ll hopefully be traceable, as the library’s signature should be in its associated JavaScript file(s). To explore these files, right click on the Webpage and select “View source”. Then search for “.js” and explore those files, click through to them to see whether they have signatures.