Button.label transparency

programming flash
1

In flash 8 I have a mx.controls.Button that I want to programatically make fade in and out. If I say:
[INDENT]myButton._alpha -= 5;
[/INDENT] Then the button fades out, but the Button.label in the center doesn’t. Does anyone know if this is even possible, or is there a better way to go about fading a button?

Thanks