         parent.controllers.last?.layoutLeft.constant = delta
         parent.controllers.last?.layoutRight.constant = delta
         
-        UIView.animate(withDuration:kAnimationDurantion, animations:
+        UIView.animate(withDuration:kAnimationDuration, animations:
         {
             self.layoutIfNeeded()
         })

        parent.controllers.last?.addShadow()
        bar.push(name:controller.title)
        
        UIView.animate(withDuration:kAnimationDurantion, animations:
        {
            self.layoutIfNeeded()
            self.parent.controllers.last?.shadow?.maxAlpha()

    weak var layoutBarHeight:NSLayoutConstraint!
    let kBarHeight:CGFloat = 64
    let kBarMinHeight:CGFloat = 20
    private let kAnimationDuration:TimeInterval = 0.3
    
    convenience init(parent:CParent)
    {
