Starting Animation From JavaScript

Hi.
I just made my first edge animate project and made a progress loader animation. Works well.
When i placed the code in the site the animation was always on, so i've hidden the item in css
#Stage { display:none; }
When my animation is needed i'm making is visible however the animation has already been started in the background so wont begin the right place.
I'm wondering should i stop the stage autoplay in the config and then start the animation in JS? If so how can i go about starting the animation via JS.
I've been playing around with AdobeEdge.bootstrapCallback but cant seem to get it to play.
Many thanks.

Thanks Elaine. That got it.
Added
AdobeEdge.bootstrapCallback(function (compId) {
comp = AdobeEdge.getComposition(compId).getStage();
then
comps.play(0); when i make my indicator visible

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