window.onload = function()
{
   var spread = 
   new GC.Spread.Sheets.Workbook(document.getElementById("ss"),{sheetCount:3});
   var sheet = spread.getActiveSheet();
   sheet.getCell(0, 0).backColor("pink");
   sheet.bind(GC.Spread.Sheets.Events.LeaveCell, function (event, infos) {
   
   // Reset the backcolor of cell before moving
   infos.sheet.getCell(infos.row, infos.col).backColor(undefined);
   });
  
   sheet.bind(GC.Spread.Sheets.Events.EnterCell, function (event, infos) {
           
   //Set the backcolor of destination cells (currently active cells)
   infos.sheet.getCell(infos.row, infos.col).backColor("pink");
});
}