The source code

    Ext.chart.Chart.CHART_URL = '../../resources/charts.swf';

    Ext.onReady(function(){
        var store = new Ext.data.JsonStore({
            fields: ['year', 'comedy', 'action', 'drama', 'thriller'],
            data: [
                    {year: 2005, comedy: 34000000, action: 23890000, drama: 18450000, thriller: 20060000},
                    {year: 2006, comedy: 56703000, action: 38900000, drama: 12650000, thriller: 21000000},
                    {year: 2007, comedy: 42100000, action: 50410000, drama: 25780000, thriller: 23040000},
                    {year: 2008, comedy: 38910000, action: 56070000, drama: 24810000, thriller: 26940000}
                  ]
        });

        new Ext.Panel({
            width: 600,
            height: 400,
            renderTo: 'container',
            title: 'Stacked Bar Chart - Movie Takings by Genre',
            items: {
                xtype: 'stackedbarchart',
                store: store,
                yField: 'year',
                xAxis: new Ext.chart.NumericAxis({
                    stackingEnabled: true,
                    labelRenderer: Ext.util.Format.usMoney
                }),
                series: [{
                    xField: 'comedy',
                    displayName: 'Comedy'
                },{
                    xField: 'action',
                    displayName: 'Action'
                },{
                    xField: 'drama',
                    displayName: 'Drama'
                },{
                    xField: 'thriller',
                    displayName: 'Thriller'
                }]
            }
        });
    });