private function image_resize(evt:ResizeEvent):void {
                  var w:Number = evt.currentTarget.width;
                  var h:Number = evt.currentTarget.height;
                  var cornerRadius:uint = 60;
                  roundedMask.graphics.clear();
                  roundedMask.graphics.beginFill(0xFF0000);
                  roundedMask.graphics.drawRoundRect(0, 0,
                              w, h,
                              cornerRadius, cornerRadius);
                  roundedMask.graphics.endFill();
                  image.mask = roundedMask;
              }
          ]]>
      </mx:Script>