Book excerpt: Provides in-depth information to the more than one million Flash developers who want to take their animations to the next level using sophisticated interaction and data-driven content Flash ActionScript is an object-oriented scripting language used with Flash that allows the designer to control a movie in non-linear fashion, create sophisticated interactivity, control elements on the stage, collect and track input from the movie viewer, and exchange and manipulate data from external sources The most comprehensive Flash ActionScript guide available, cowritten by Robert Reinhardt, coauthor of Macromedia Flash MX 2004 Bible (0-7645-4303-2) Published to coincide with the release of Flash "X," the newest version of this widely used Web development tool