[AS3] Help with dynamic XML or Array tree menu

Hi everybody,

I am a AS3 newb, I have been playing with AS2 for a while but not with Class. Now, I like to create a dynamic XML or Array tree menu with customized graphic with AS3. I have learned some basic from the on-line examples but I have problem to addChild dynamically. Will anybody show me how to achieve that with some simple example?

Thanks in Advance.