     private var numberOfPages: size_t = 0
     private var currentPage: size_t = 1
 
+    private var scale: CGFloat = 0.0
+    
     required init?(coder aDecoder: NSCoder)
     {
         super.init(coder: aDecoder)


            }
        }
        
        return true
    }

        self.addGestureRecognizer(leftSwipeGestureRecognier)
        self.addGestureRecognizer(rightSwipeGestureRecognier)
        
        // add UIPinchGestureRecognizers
        let pinchGestureRecognizer: UIPinchGestureRecognizer = UIPinchGestureRecognizer()
        self.addGestureRecognizer(pinchGestureRecognizer)
    }
    
    // Only override drawRect: if you perform custom drawing.
