ActionScript 3.0 :: Determine Rotation Of Child Object To Stage?

How can I get the X, Y, and rotation values, relative to the stage of a child of unknown number of parents?What I am doing is: I have a 'stick' object, that creates a child 'stick', that creates a child 'stick', etc a random number of times.The end stick then creates a leaf. Each new stick rotates a little bit randomly.As a result when my leaf falls off the final stick it flies off in a strange direction.How can I get the leaf to fall down (eg y++ relative to stage)?Alternatively I thought I could dispatch an event that has a leaf created at the stage level but then I really need to know what the X and Y co-ordinates of my final stick is realtive to the stage.