set(0,0); 
		mouseDown = true;
		leftMouseDown = true;
	}
	else{
		rightTouchStartPos.reset(event.offsetX, event.offsetY); 	
		rightTouchPos.copyFrom(leftTouchStartPos); 
		rightVector.reset(0,0); 
		mouseDown = true;
		leftMouseDown = false;
	}
}
 
function onTouchMove(e) {
	 // Prevent the browser from doing its default thing (scroll, zoom)
	e.preventDefault();
	
	for(var i = 0; i<e.changedTouches.length; i++){
		var touch =e.changedTouches[i]; 
		if(leftTouchID == touch.identifier)		{
			leftTouchPos.res