Extend HTML Elements in JS with a 'Factory'

Simple "TIP" to "extend" an HTML element by adding functionality to it from an object-oriented perspective. In JavaScript, you can dynamically add attributes to an instance of an "object" that will only belong to that object. If a 'factory' function is defined that instantiates an object, adds (dynamically) the attributes we want, and returns the newly modified object, we have a quick way to implement some sort of "specialization."