window.onload = function(){
        var spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"),{sheetCount:3});
        var activeSheet = spread.getActiveSheet();
//それぞれの条件付きスタイルを作成します。
var styleBlue = new GC.Spread.Sheets.Style();
 var stylePink = new GC.Spread.Sheets.Style();
 var styleLime = new GC.Spread.Sheets.Style();
 var styleYellow = new GC.Spread.Sheets.Style();
 var styleEmpty = new GC.Spread.Sheets.Style();
 styleBlue.backColor = "blue";
 styleBlue.foreColor = "white";
 stylePink.backColor = "pink";
 styleLime.backColor = "lime";
 styleYellow.backColor = "yellow";
 styleEmpty.backColor = undefined;
 styleEmpty.foreColor = undefined;
//それぞれのセルに条件付き書式を設定します。
activeSheet.conditionalFormats.addCellValueRule(
     GC.Spread.Sheets.ConditionalFormatting.ComparisonOperators.EqualsTo,
     0,
     undefined,
     styleEmpty,
     [new GC.Spread.Sheets.Range(1, 1, 1, 1)]);
 activeSheet.conditionalFormats.addCellValueRule(
     GC.Spread.Sheets.ConditionalFormatting.ComparisonOperators.LessThan,
     10,
     undefined,
     styleBlue,
     [new GC.Spread.Sheets.Range(1, 1, 1, 1)]);
activeSheet.conditionalFormats.addCellValueRule(
     GC.Spread.Sheets.ConditionalFormatting.ComparisonOperators.Between,
     20,
     50,
     stylePink,
     [new GC.Spread.Sheets.Range(2, 1, 1, 1)]);
activeSheet.conditionalFormats.addCellValueRule(
     GC.Spread.Sheets.ConditionalFormatting.ComparisonOperators.Between,
     50,
     80,
     styleLime,
     [new GC.Spread.Sheets.Range(3, 1, 1, 1)]);
activeSheet.conditionalFormats.addCellValueRule(
     GC.Spread.Sheets.ConditionalFormatting.ComparisonOperators.GreaterThan,
     80,
     undefined,
     styleYellow,
     [new GC.Spread.Sheets.Range(4, 1, 1, 1)]);
activeSheet.getCell(2, 1).value(25);
 activeSheet.getCell(3, 1).value(77);
 activeSheet.getCell(4, 1).value(88);
                  }