Are you interested in 2D animation in Flash? First import a image in flash. Then create a new layer and choose oval tool and take a radial gradient. In the middle of the shape, we need to have zero alpha value and pick the colors from the background of the image. Create the shape over the image and take another frame at no.10 and increase alpha. Then create another keyframe and convert it to movie clip. Then create shape and motion tween. On the new layer, write a stop command in action script. Your animation is ready and this will be helpful for presentations.