This tutorial will show you how to make a fading animation in Flash. The first step is to make yourself a new layer. So, go to Insert >Layer

You will see that a new "Layer 2" is added in the section below. So, highlight your newly made layer.

Now we are going to add the object that we are going to fade, so select your circle tool.

Draw your circle in your image area.

Now, we are going to turn our image into a graphic. So, click on your circle. Make sure that you highlight the border as well!

Once it is all highlighted, go to Insert> convert to Symbol.

Use the settings below

Now that we have our image, in our new layer we are going to start and make the animation. So, click about 20 frames down from the beginning of the layer, making sure that you are on the same layer that your graphic is on. Right click and choose "Insert Keyframe"

Now, while you have your last frame selected go to Window >panels> effects to bring up our effects panel.

Choose "alpha" on the dropdown menu. And make it )%

Now, highlight all of your frames and right click. Choose "create Motion Tween"

Your frames should now be merged together with a purple arrow. This symbolizes that your layers are tweened.

Now you are all done :) Go ahead and view your animation by going to file>publish preview.