 		backButton.setTitle("Back", forState: UIControlState.Normal)
 	}
 	
-	override func presentNextScreen() {
-		timerDidFire()
-	}
-	
 	override func presentPreviousScreen() {
 		if currentView == 0 {
 			return

			currentView -= 2
		}
		timer.invalidate()
		timerDidFire()
	}
	
	var isGameStarted = false

		}
		        
        UIView.transitionWithView(view, duration: transitionSpeed, options: UIViewAnimationOptions.CurveEaseInOut, animations: {
            // animation...
            self.collectionView.alpha = 0.0
            
