window.onload = function()
{
   var spread =
   new GC.Spread.Sheets.Workbook(document.getElementById("ss"),{sheetCount:3});
   var activeSheet = spread.getActiveSheet();
  
   // Set the horizontal and vertical alignment of string to “center”
   var cell = activeSheet.getCell(1, 1, GC.Spread.Sheets.SheetArea.viewport);
   cell.hAlign(GC.Spread.Sheets.HorizontalAlign.center);
   cell.vAlign(GC.Spread.Sheets.VerticalAlign.center);
   cell.value("Alignment");
   // Set the indent of strings.
   cell = activeSheet.getCell(2, 1, GC.Spread.Sheets.SheetArea.viewport);
   cell.textIndent(2);
   cell.value("Indent");
   activeSheet.getRange(1, -1,  2, -1, GC.Spread.Sheets.SheetArea.viewport).height(40);
   activeSheet.getRange(-1, 1, -1, 1, GC.Spread.Sheets.SheetArea.viewport).width(120);
}