How stop group of particles child of game object?

Hello every one
I have game object as parent and this object have a lots of particle systems and other things like particle system but some difference with it.
I want to stop all of them but don’t know how can I do that?
I need to play/pause/stop them!!
thanks in advance

Sorry I find the answer but not 100% correct.

var parE : ParticleEmitter[];
function Update () {
 
 	parE[0].emit = false;
 	parE[1].emit = false;
 	parE[2].emit = false;
 	parE[3].emit = false;
	particleEmitter.ClearParticles();


}