code: public static Timer setInterval(int milliseconds, TimerCallback callback) {
  		IntervalTimer interval = new IntervalTimer();
  		interval.setId(nativeSetInterval(milliseconds, callback, interval));
  		return interval;
  	}
docs: Defines a repeating timer with a specified interval.
  
  @param milliseconds Interval between timer shots.
  @param callback Callback to fire on each timer shot.
  @return The new interval object