private void LoadButtons()
{
_leftButton = UIButton.FromType (UIButtonType.Custom);
_leftButton.TouchUpInside += HandlePreviousMonthTouch;
_leftButton.SetImage (Util.FromResource (null, "leftarrow.png"), UIControlState.Normal);
AddSubview (_leftButton);
_leftButton.Frame = new RectangleF (10, 0, 44, 42);
_rightButton = UIButton.FromType (UIButtonType.Custom);
_rightButton.TouchUpInside += HandleNextMonthTouch;
_rightButton.SetImage (Util.FromResource (null, "rightarrow.png"), UIControlState.Normal);
AddSubview (_rightButton);
_rightButton.Frame = new RectangleF (320 - 56, 0, 44, 42);
}