var run = false;
var delay = 3;

function isRunning() {
	return run;
}

function start() {
	run = true;
}

function stop() {
	run = false;
}

function setDelay(_delay) {
	delay = _delay;
}

function getDelay() {
	 return delay;
}

function increaseDelay() {
	delay = delay + 1; 
}

function decreaseDelay() {
	if(delay > 1) {
	  delay = delay - 1; 
  }
}