function popUpWin(url, win, width, height) {
               var leftPos = (screen.availWidth - width) / 2;
               var topPos = (screen.availHeight - height) / 2;
               options = 'scrollbars=no,status=no,toolbar=no,location=no,directories=no,resizable=no,menubar=no,width=' + width + ',height=' + height + ',left=' + leftPos + ',top=' + topPos;
               return window.open(url, win, options);
      }
      function popUpWin2(url, win, width, height) {
               var leftPos = (screen.availWidth - width) / 2;
               var topPos = (screen.availHeight - height) / 2;
               options = 'scrollbars=yes,status=no,toolbar=no,location=no,directories=no,resizable=no,menubar=no,width=' + width + ',height=' + height + ',left=' + leftPos + ',top=' + topPos;
               return window.open(url, win, options);
      }