Change the Model's Alpha

[kefeihappy]

Hello.sir   
I  had load the Model to the Object3D,
but ..but  I want to change the Object3D's Alpha   anytime int the Game, 
What should I do?
maybe change Model Texture's alpha is a good idea,  it work well?
Thank!

[EgonOlsen]

http://www.jpct.net/jpct-ae/doc/com/threed/jpct/Object3D.html#setTransparency(int)