window.onload = function(){
          var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"),{sheetCount:3});
          var sheet = spread.getActiveSheet();
 //ユーザーに対し、数式の入力を許可します。
spread.options.allowUserEditFormula = true;
 activeSheet.setValue(0, 0, 1000);
 activeSheet.setValue(1, 0, 200);