procedure TWebBrowerForm.WebBrowserBeforeNavigate2(Sender: TObject;
const pDisp: IDispatch; var URL, Flags, TargetFrameName, PostData,
Headers: OleVariant; var Cancel: WordBool);
var NewIndex:integer;
begin
NewIndex:=SLHistory.IndexOf(URL);
if NewIndex=-1 then //??????
begin
if (HistoryIndex>=0) and (HistoryIndex HistoryIndex do