public void WaitPageCompleted(int timeOutSec)

         {

             int cnt = ;

             for (int j = ; j < timeOutSec * ; j++)

             {

                 _wb.Invoke(new Action(() =>

                 {

                     if (_wb.ReadyState == WebBrowserReadyState.Complete && _wb.IsBusy == false)

                     {

                         cnt++;

                     }

                     else

                         cnt = ;

                 }));

                 if (cnt >= ) break;

                 System.Threading.Thread.Sleep();

             }

         }