$(document).ready(function () 
{
   var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"),
   {sheetCount:3});
   
   // Set the number of sheets to 5.
   spread.setSheetCount(5);
   
   // Change the sheet names
   spread.sheets[0].name("The first sheet");
   spread.sheets[1].name( "The second sheet");
   
   // Change sheet information such as sheet tab display color.
   spread.sheets[0].options.sheetTabColor = "LemonChiffon";
});