void CMainFrame::CreateOrActivateFrame(CDocTemplate *pTemplate, CRuntimeClass *pViewClass)
{
        CView* pView;
        CDocument* pDoc;
        POSITION pos;

        if(MDIGetActive() != NULL)
        {
                if((pos = pTemplate->GetFirstDocPosition()) != NULL)
                {
                        pDoc = pTemplate->GetNextDoc(pos);
                        pos = pDoc->GetFirstViewPosition();
                        while (pos != NULL)
                        {
                                pView = pDoc->GetNextView(pos);
                                if (pView->IsKindOf(pViewClass))
                                {
                                        pView->GetParentFrame()->ActivateFrame(SW_RESTORE);
                                        return;
                                }
                        }
                }
                else
                {
                        pDoc = (CDocument*)pTemplate->CreateNewDocument();
                }
        }
        else
        {
                pDoc = (CDocument*)pTemplate->CreateNewDocument();
        }

        CMDIChildWnd* pNewFrame = (CChildFrame*)(pTemplate->CreateNewFrame(pDoc, NULL));
        if (pNewFrame == NULL)
                return;     // not created
        ASSERT_KINDOF(CMDIChildWnd, pNewFrame);
        pTemplate->InitialUpdateFrame(pNewFrame, pDoc);
}

void CMainFrame::OnMyMenuItem()
{
        CreateOrActivateFrame(theApp.m_pMyViewTempl, RUNTIME_CLASS(CMyView));
}

BOOL CMyDoc::OnNewDocument()
{
	if (!CDocument::OnNewDocument())
		return FALSE;

	// вот тут
	m_strTitle = _T( "Вот тут название твонго дока" );
	return TRUE;
}