This isn't a "website". It's just a directory we serve certain javascript files out of. You can press F12 to see the list of javascript files included on any page.

Because you didn't give a valid path? There are only a small handful of javascript files in there, the ones in use are under the Next/ folder.

To see the files in use you have to use f12. We don't provide a directory listing of all the javascript files because there would be no need to.

You should get a better understanding of web development and web server configuration before you poke around and ask questions that don't make sense.