An SVG 3D Bar chart with custom background bars

This goes in the documents header:
<script src="RGraph.svg.common.core.js"></script>
<script src="RGraph.svg.bar.js"></script>
<script src="RGraph.svg.hbar.js"></script>
Put this where you want the chart to show up:
<div style="width: 750; height: 500px" id="chart-container"></div>
This is the code that generates the chart:
<script>
    bar_data = [213,268,542,355,129,985,465,854,123,653,452,584];
    hbar_data = [];
    
    for (var i=0; i<(bar_data.length * 2); i++) {
        hbar_data.push(i % 2 === 1 ? 1 : 0);
    }

    var hbar = new RGraph.SVG.HBar({
        id: 'cc',
        data: hbar_data,
        options: {
            vmargin: 0,
            colors: ['rgba(248,248,248,1)','white'],
            gutterLeft: 50,
            gutterRight: 25,
            gutterTop: 25,
            gutterBottom: 25,
            xaxis: false,
            xaxisScale: false,
            yaxis: false,
            backgroundGrid: false
        }
    }).draw();
    
    var bar = new RGraph.SVG.Bar({
        id: 'cc',
        data: bar_data,
        options: {
            gutterLeft: 75,
            gutterRight: 25,
            gutterTop: 25,
            gutterBottom: 25,
            colors: ['gradient(red:#faa)'],
            yaxisMax:1200,
            yaxisLabelsCount:12,
            yaxis: false,
            xaxisLabels: ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'],
            backgroundGridColor: '#eee',
            backgroundGridHlinesCount: 24,
            yaxisUnitsPost: 'km',
            shadow: true,
            shadowOpacity: 0.2
            
        }
    }).wave();
</script>