How do i make ColorTransform interact with user choice?

1

hi everyone

i did this code

import flash.geom.ColorTransform;
import flash.geom.Transform;
//////////////////////////
var redMultiplier=1;
var greenMultiplier=1;
var blueMultiplier=1;
var alphaMultiplier=1;
var redOffset=50;
var greenOffset=-100;
var blueOffset=0;
var alphaOffset=0;
/////////////////////////
var trans:Transform = new Transform(shape_key);

trans.colorTransform = new ColorTransform(redMultiplier, greenMultiplier, blueMultiplier, alphaMultiplier, redOffset, greenOffset, blueOffset, alphaOffset);
trace(trans.colorTransform);

which is coloring the key shape into pink color.
i do need to make 2 buttons that will change the key color when user does the following:
1- click on chosen color
2- click on key
then the chosen color will appear.

could any one help me with this?
thanks in advanced