[wUI]

Кстати опять таки вопрос возник.
Вот json строка с данными:
{"contents":[{"name":0,"data1":48,"name2":0,"data2":50},{"name" :1,"data1":48,"name2":1},{"name":2,"data1":50.4,"n ame2":2},{"name":3,"data1":50.4,"name2":3},{"name" :4,"data1":48,"name2":4},{"name":5,"data1":48,"nam e2":5},{"name":6,"data1":48,"name2":6},{"name":7," data1":48,"name2":7},{"name":8,"data1":48,"name2": 8},{"name":9,"data1":48,"name2":9},{"name":10,"dat a1":50.4,"name2":10},{"name":11,"data1":48,"name2" :11},{"name":12,"data2":50},{"name":12,"data2":48},{"name":12,"data1":50.4,"name2":12},{"name":13,"d ata1":50.4,"name2":13},{"name":14,"data1":50.4,"na me2":14},{"name":15,"data1":50.4,"name2":15},{"nam e":16,"data1":48,"name2":16},{"name":17,"data1":48 ,"name2":17},{"name":18,"data1":50.4,"name2":18},{ "name":19,"data1":48,"name2":19},{"name":20,"data1 ":50.4,"name2":20},{"name":21,"data1":50.4,"name2" :21},{"name":22,"data1":50.4,"name2":22},{"name":2 3,"data1":50.4,"name2":23,"data2":48}]}
Вот код графика:

var ColumnChart = Ext.create('Ext.chart.Chart', {
            height: 600,
            width: 980,
            x: 0,
            y: 0,
            id: 'ColumnChart',
            xtype: 'chart',
            style: 'background:#fff',
            animate: true,
            store: store,
            axes: [{
                type: 'Numeric',
                position: 'left',
                fields: 'data1',
                grid: true,
                minimum: 0
            }, {
                type: 'Category',
                position: 'bottom',
                fields: 'name2'
            }],
            series: [{
                type: 'column',
                axis: 'left',
                gutter: 80,
                xField: 'name2',
                yField: 'data1',
                tips: {
                    trackMouse: true,
                    width: 165,
                    height: 28,
                    renderer: function(storeItem, item) {
                        this.setTitle(storeItem.get('name2') + ' : ' + storeItem.get('data1'));
                    }
                },
                style: {
                    fill: '#38B8BF'
                },
                label: {
                display: 'insideEnd',
                'text-anchor': 'middle',
                field: 'data1',
                orientation: 'vertical',
                color: '#333'
                }
            }]
        });

И собственно сам график:
http://saveimg.ru/show-image.php?id=...17dc2b09521820

Вопрос: почему отсраиваются эти два пустых элемента???