How can I add level rotation to the OpenFlashChart component?

I've checked the documentation, and I've added:
domainLabelRotationDir: "up",
domainLabelRotation: 0.25,


but nothing happens.

Code:
topTenCustomerChartDefinition : {
		width: 600,
		height: 450,
		chartType: "AreaChart",
		datasetType: "CategoryDataset",
		orientation:"horizontal",
		is3d: "true",
		byRow: "true",
		isStacked: "false",
		includeLegend: "false",
		domainLabelRotationDir: "up",
                domainLabelRotation: 0.25,
                title: "",
		foregroundAlpha: 3,
		backgroundColor:'#FFFFFF',
		queryType: 'mdx',
        catalog: 'solution:netxmedia/Analysis/netxmedia Schema.xml',
        orientation: 'horizontal',
		jndi: "netxmedia",
		query: function(){

            var query = "select NON EMPTY Crossjoin({[Measures].[Order Price]}, {[Time].[2007], [Time].[2008], [Time].[2009]}) ON COLUMNS, NON EMPTY TopCount(Crossjoin(Crossjoin([Region].[Regions].Children, [State].[States].Children), [Customer Income].[Incomes].Children), 10.0, [Measures].[Order Price]) ON ROWS from [Orders]";
			return query;
		}
	}
};
Thanks