Cannot get javascript functions to work AT ALL :(

Hi all, 

I've been trying for weeks now to get the jscript to work... I've tried everything I can think of and even gone through a textbook on Javascript and jQuery and I still can't figure out why non of the functions from functions.js seem to be getting called.

I even tried just cloning this repository and setting it all up, and it didn't work either!!

Please can somebody help me :(