Flash cs4 stop looping in one animation?

[Kirsty]

I've made an animated octopus, it's 8 legs are different movie clips and on different layers and I want the legs to move at different times and stop at different times. Well I've got them moving at different times but when I put stop(); in the action script it stops every animation in the scene, even if I only have the action script on one of the layers, it stops everything. How do I do it so it only effects one of the animations on the stage and not all? Thanks