[away3d] getChildByName in Away3d

[SasMaster]

I am building a vehicle in JigLibFlash and I need to access parts
(wheels) of the car model which I imported in DAE  in order to rotate
them in phys engine. Collada Class in pv3d gives a function
getChildByName but in away3d there is no such a method. Any Help on
this subject?
Thanks