Feature/main js cleanup

Changed a bit of the formatting.

1. Changed method names to lowercase the first letter.
    Let's try to keep camel case convention to prevent confusion.

2. Added a line in the comments.
    This is just to make the comments slightly more readable.

3. Changed a jQuery method in the documentation.
    The method should be `.click()` not `.Click()` according to the [jQuery API Documentation](http://api.jquery.com/click/).