I'd like to add an own xAxis to the chart with minimum and maximum datetime values. This code doesn't show up any axes:

 $("#chart").igDataChart("option", "axes", [{
            name: "xAxis",
            type: "categoryDateTimeX",
            minimumValue: new Date(2013, 02, 20, 00, 00, 00, 00),
            maximumValue: new Date(2013, 02, 23, 00, 00, 00, 00),
            label: 'label'
        }]);

How should I manage this to work?

Thanks, Peter