sheet.setActiveCell(5,5);
alert(sheet.getActiveColumnIndex());
alert(sheet.getActiveRowIndex());
spread.bind(GC.Spread.Sheets.Events.EnterCell, function (event, data) {
    alert(data.col);
    alert(data.row);
  });
spread.bind(GC.Spread.Sheets.Events.LeaveCell, function (event, data) {
    alert(data.col);
    alert(data.row);
  });