[away3d] MouseEvent3D get parent ObjectContainer3D

[am]

Still having problems with my extruded text.
Now i put the TextField3D and the generated extrusion into a
ObjectContainer3D,
to be able to move it as one.

Now i want to add interaction.

function onSceneMouseUp(e:MouseEvent3D):void {
        if (e.object is Mesh) {
                var mesh:Mesh = e.object as Mesh;
                mesh.material = new WireColorMaterial();
        }
}

But it only changes the material of the front, but not of the
extrusion.

How can i change all the materials?

btw: i still couldn´t find out about my other material issue with
extruded text: 
http://groups.google.com/group/away3d-dev/browse_thread/thread/fc0719de8021b5fc