The ProgressBar Component included with the Professional version of Flash MX 2004 makes it easier than ever to produce a high-quality pre-loader for your projects. It automatically retrieves the progress of loading content so you no longer have to worry about calculating it yourself. In the Professional version there are two items that you can point the ProgressBar to that will make it work the way it is intended: a screen and the Loader component. Without getting into all of the gory details of how it works, we'll step through making a pre-loader with the ProgressBar component utilizing both of these scenarios. Within a few minutes you'll have a progress bar zipping its way across the screen so you can get back to the meat and potatoes of your site: its content. Let's get started!
pbListener = new Object(); create a new object named pbListner