         scroller.delegate = self
         dragger = UIView(frame: view.frame)
         dragger.backgroundColor = UIColor.clearColor()
-        var gestureReco = UIPanGestureRecognizer(target: self, action: "dragged:")
+        let gestureReco = UIPanGestureRecognizer(target: self, action: "dragged:")
         dragger.addGestureRecognizer(gestureReco)
         
         

    
    public func scrollViewDidScroll(scrollView: UIScrollView) {
        
        var offset = scroller.contentOffset.x
        
        for var index = 0; index < introViews.count; index++ {
            if introViews[index].isInBound(offset){

        
        for var index = 0; index < views.count; index++ {
            
            let introView = NSBundle.mainBundle().loadNibNamed(views[index], owner: self, options: nil)[0] as! KDIntroView
            introView.center.x = view.center.x + view.frame.width * CGFloat(index)
            scroller.addSubview(introView)
            introViews.append(introView)
            
