thanks! ------------------------------------------- Best Regards WangYunfei(王云飞) Information Engineering College Capital Normal University Beijing 100048, China E-mail: [log in to unmask] ------------------------------------------- ================================================================ To Subscribe or Unsubscribe CSSAMSU mailing list, please go to: http://list.msu.edu/archives/cssamsu.html Click "Join or leave the list". For further assistance, please contact Jerry McAllister [log in to unmask] ================================================================