smoothly rotating a bitmap with AS2

Hello list, i-d like to smoothly rotate an image loaded in an as2 swf file.
no tween, just rotate and leave it there.
it doesn´t work. i´ve tried lot of things and no success. actually i-m
used to as2, i don´t understand as2 very well.....

here is the code:

Code:

---

      mcBanner2.loadMovie(linksBanners[1]);

      var bitmap:BitmapData=new
BitmapData(mcBanner2._width,mcBanner2._height,true,0);

      var charObj:Object=new Object();
      charObj.rotation = -3;
      var angle_in_radians = Math.PI * 2 * (charObj.rotation / 360);

      var rotationMatrix:Matrix = new Matrix();
//      rotationMatrix.translate(-16,-16);
      rotationMatrix.rotate(0.1);
//      rotationMatrix.translate(16,16);

      var rectangleTrans:Transform = new Transform(mcBanner2);
      rectangleTrans.matrix = rotationMatrix;

      var myColorTransform:ColorTransform = new ColorTransform(0, 0, 1, 1,
0, 0, 255, 0);
      var myRectangle:Rectangle = new Rectangle(0, 0, 100, 80);
      var smooth:Boolean = true;

  bitmap.draw(mcBanner2,rotationMatrix, myColorTransform, "normal",
myRectangle, smooth);
//      mcBanner2._rotation=-3; // this doesn´t work.
      mcBanner2.attachBitmap(bitmap,100,"auto",true);
      mcBanner2._xscale=100;
      mcBanner2._yscale=100;

---