It's possible to expand T3's functionality by intergrating the various jquery plugins available or by even creating your own functions. To do so there is a certain protocol you should follow so that additions to the template are treated correctly.

Within the template directory you will see a folder called etc, which provides files that call in any additional functions. Let's take a look at the process of including a jquery plugin within your template. With the following example we are going to use the paypal / bootstrap accessibility plugin located in github, although the same theory will apply for any plugin.