Double-click the "fall" movie clip so we can edit it.(Don't open
the "flake"
clip inside it — that's for later.) Give the instance of the "flake" movie
clip the name "flakey."
Add a new layer — this is where all our ActionScript will go.
Give each
layer four frames. (Select the first frame and press the F5 key three
times.) In
the
top layer, make frames 2 and 4 into keyframes by selecting each frame and pressing F6.