this.changeTimer.onTimerFired = timerFunction1;
	
	function timerFunction1() {
		if(this.counter < width) {
			clock.update( this.counter );
			this.counter += 10;
		} else {
			//clock.updateTime();
			this.onTimerFired = timerFunction2;
		}
	}
	function timerFunction2() {
		if(this.counter > -width) { 
			clock.update( this.counter );
			this.counter -= 10; 
		} else { 
			this.onTimerFired = timerFunction1;
			this.counter = -width;
		}
	}