Another cool tutorial (beginner level), by Craig Campbell showing in few steps how to handle / set the dephs in Flash with as3.
Tutorial | ActionScript 3 Depths
About the Author: Carlos Pinho
A father, a husband and a geek... Carlos was the founder of projects like The Tech Labs and Flash Enabled Blog. He is the founder of TekTuts He is passionate about technologies. Their main skills are in analytics, transport & logistics, business administration. He also writes about programming resources, trends, strategy and web development.