from Wikipedia : ActionScript is a scripting language based on ECMAScript. ActionScript is used primarily for the development of websites and software using the Adobe Flash Player platform (in the form of SWF files embedded into Web pages). — So, basically, it’s very similar in nature to Javascript (which is also a flavor of ECMAScript). I should think that if you’re relatively familiar with Javascript already, then you’d have a leg up on getting around in ActionScript. Be sure to read the Wikipedia article… and check out the external links they provide to the Adobe developer and support sites.