<script type="text/javascript">
      window.onload = function(){
          var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"),{sheetCount:3});
          var activeSheet = spread.getActiveSheet(); 

spread.bind(GC.Spread.Sheets.Events.SheetMoving, function (e, data) {
alert(data.sheetName + '\n' +  'oldIndex: ' + data.oldIndex + '\n' +  'newIndex: ' + data.newIndex + '\n' +  'cancel: ' + data.cancel);
});

spread.bind(GC.Spread.Sheets.Events.SheetMoved, function (e, data) {
alert(data.sheetName + '\n' +  'oldIndex: ' + data.oldIndex + '\n' +  'newIndex: ' + data.newIndex);
});
}
</script>