var namedStyle1 = new GC.Spread.Sheets.Style();
namedStyle1.name = "style2";
namedStyle1.backColor = "blue";
var namedStyle = new GC.Spread.Sheets.Style();
namedStyle.name = "style1";
namedStyle.backColor = "green";
spread.addNamedStyle(namedStyle);
spread.addNamedStyle(namedStyle1);
activeSheet.setStyleName(1, 1, "style1");
activeSheet.setStyleName(2, 1, "style1");
activeSheet.setStyleName(3, 0, "style2");
activeSheet.getCell(1,1).value("test");
var sname = spread.getNamedStyles();
for(var i = 0; i < sname.length; i++){
alert(sname[i].name);
}