darshak has one likely but you should likely get the original from the Philips site. If you are not Level1 Certified, you will need to sign up and take the test before you can download.

If you do not know Javascript, it is very likely that you will not be able to modify these files on your own. You should also consider downloading the ProntoScript Developers Guide from the Files forum as a reference for the Extensions to Javascript added for Pronto platform.