return NS_ERROR_NOT_IMPLEMENTED;
ResourceState setState; USES_CONVERSION;  CWnd *wnd = CWndForDOMWindow(parent); CAlertCheckDialog dlg(wnd, W2T(dialogTitle), W2T(text), W2T(checkboxMsg), checkValue ? *checkValue : 0);  dlg.DoModal();  *checkValue = dlg.m_bCheckBoxValue;  return NS_OK;
NS_IMETHODIMP CPromptService::AlertCheck(nsIDOMWindow *parent,                                         const PRUnichar *dialogTitle,                                         const PRUnichar *text,                                         const PRUnichar *checkboxMsg,                                         PRBool *checkValue){  return NS_ERROR_NOT_IMPLEMENTED;}