flash as3 slot reel animation help needed

i am writing an as3 file for slot machine. the first reel already runs, but how to reuse the images for the other reels (total 5)? the images are in an array and the animation needs to be dynamic (for full screen mode and resizing) i have problems to calculate the positions of the images. additionally it should be possible to change the speed of each reel by var. and to stop the reel.