pjs_raf.js

var playing = true;

//call this function to start the loop
function startRaf(){
	rafGo();
}

function rafGo() {
  //loop stops when playing is set to false
	if(playing){
    //be sure to include Paul Irish's rAF shim!
		requestAnimationFrame(rafGo);
	  pjs.draw();
	}
}

startRaf();