window.onload = function()
{
   var spread = 
   new GC.Spread.Sheets.Workbook(document.getElementById("ss"),
   {sheetCount:3});
   var activeSheet = spread.getActiveSheet();
   activeSheet.setRowCount(5);
   activeSheet.setColumnCount(2);
   activeSheet.getRange(-1, 1, -1, 1)
   .backColor("lightYellow")
   .width(120);
   activeSheet.setValue(0, 0, 10);
   activeSheet.setValue(1, 0, 20);
   activeSheet.setValue(2, 0, 30);
   activeSheet.setValue(3, 0, 40);
   activeSheet.setValue(4, 0, 50);

   // Set SUM function (Sum of all parameter values).
   activeSheet.setFormula(0, 1, "SUM(A1:A5)");
  
   // Set PRODUCT function (Product of all parameter values).
   activeSheet.setFormula(1, 1, "PRODUCT(A1:A5)");

   // Set AVERAGE function (Average of all parameter values).
   activeSheet.setFormula(2, 1, "AVERAGE(A1:A5)");

  // Set the sum of cell(0,0) and cell(4,0).
  activeSheet.setFormula(3, 1, "A1 + A5");

  /* Multiply cell(0,0) by 2 if the value in this cell is greater than 10, 
    otherwise multiply it by 3. */
   activeSheet.setFormula(4, 1, "IF(A1>10, A1*2, A1*3)");
}