anchor.diff:  begin
     SetDockSite(Self, False);
     inherited Destroy;
  +end;
  +
  +procedure TJvDockCustomPanel.WMEraseBkgnd(var Message: TWmEraseBkgnd);
  +begin
  +  if ParentBackground then begin
  +    inherited;
  +    ParentBackground := False;
  +  end;
  +  Message.Result := 1;
   end;
   
   function TJvDockCustomPanel.CreateDockManager: IDockManager;
  
positive.code: 
    TJvDockCustomPanel = class(TJvDockCustomControl)
    protected
      function CreateDockManager: IDockManager; override;
    public
      constructor Create(AOwner: TComponent); override;
  
negative.code: constructor TJvDockPageControl.Create(AOwner: TComponent);
  begin
    inherited Create(AOwner);
    ControlStyle := [csDoubleClicks, csOpaque];
    FPages := TList.Create;
    FTabSheetClass := TJvDockTabSheet;
  end;
  