Using 3d motion tween and script20

Hi there,

I’m not very experience with as3, but I made this animation using the 3d rotation tool and the motion presets, now I just want to add a simple function of one button.

I use a very simple code found on this forum for making a button is AS3,

But when I go ahead and export the movie I get a lot of errors

errror 1120

How do I work around this problem?