I use Google Chrome Version 42.0.2311.135 m.
Solutions that just don't work..
So what does work? I've found a solution below.
Hover mouse over the Initiator column, and you will see the following:
Ignore the jquery.js, and you should see that productDetails.js is the one we want. Its OnColorClick function is called when you caused the click event. If you go to productDetails.js you will see the following code: