Hi Dr sun ,

when an item is checked out on the Viewlog page , and I click the Return button ,but the current page seems doesn't anything at all , I wonder it's because in the doPost part of the Viewlog ,  I have used sendRedirect "Viewlog?id="  which has the same relative URl to the current URL , so after the user clicks the Return button ,it stays on the same page and does nothing . But  I have used conditions to check Available status  and I also changed the available status accordingly . So what should I do to avoid this situation? Thanks !