Onion skin question

Is there a way to have the onion skin visible in your .swf? Is it a way to do this with actionscript?
Im making a stickmen fight animation, and I want to make a cool slowmotion effect.

Haha I dont think you can script that with AS. There is a way of building your movieclips to get the effect you want however. Animate your stickmen and put them into a movieclip. On your timeline place your stickman animation on the timeline, then duplicate it on a new layer and space the starting keyframes out one frame at a time. You can give those repeated clips alpha tweens in ordrer to get the onion skin look. Hope that helps!

I thought I could do something like that:)
But if it was an easier way to do it with AS, I just wanted to know that;)