Return to original gradient color on roll out

Question

I have a movicelip that has a cirlce with a gradient fill.  When I rollover I use a color transform to change the color.  I'm not sure how to get the color transform to return to its original gradient fill once I roll out of the movieclip, can anyone help me:
var overColor:ColorTransform = new ColorTransform;
overColor.color = 0xffcc00;
mc1.addEventListener(MouseEvent.ROLL_OVER, buttonOver);
function buttonOver(e:MouseEvent):void{
      mc1.transform.colorTransform = overColor;

Answer 1

I think this should be the way to do it:
var overColor:ColorTransform = new ColorTransform();
overColor.color = 0xffcc00;
var identityCTransform:ColorTransform = new ColorTransform();
mc1.addEventListener(MouseEvent.ROLL_OVER, buttonOver);
mc1.addEventListener(MouseEvent.ROLL_OUT, buttonOut);
function buttonOver(e:MouseEvent):void{
      mc1.transform.colorTransform = overColor;
function buttonOut(e:MouseEvent):void{
      mc1.transform.colorTransform = identityCTransform;