Let's get started with Chapter 3. We start off this chapter with the coolest usable and most commonly prevailing thing on the web - slideshows. By the end of this lesson, you will have a fully operational slideshow. In the process we will discover the "this" command.

The idea behind the this command is simple. When we're inside of a method and want to refer to the object that owns that method we refer to this. One of the most important concepts in object oriented programming is our desire to hide explicit names, helping turn our code from a one-time hit to a reusable Hero. The this command enables us talk to our object without naming it directly.