         self.layer.addSublayer(self.overlay)
     }
     
-    func setupInitialLayout(){
+    private func setupInitialLayout(){
         
         let selfBindings = ["rootview": self]
         let viewHeight = CGFloat(self.titles.count * 60)

        
    }
    
    func setupOverlay(){
        let frame = UIScreen.mainScreen().applicationFrame
        self.overlay.frame = CGRectMake(frame.origin.x, frame.origin.y, frame.size.width, frame.size.height * 2)
        self.overlay.backgroundColor = UIColor.blackColor().CGColor

        
    }
    
    private func setupButtonLayout(){
        
        for (idx, button) in enumerate(itemsArray) {
            
