A Scatter chart with background horizontal bars

This goes in the documents header:

<script src="RGraph.common.core.js"></script>
<script src="RGraph.scatter.js"></script>

Put this where you want the chart to show up:

<canvas id="cvs" width="600" height="250">
    [No canvas support]
</canvas>

This is the code that generates the chart:

<script>
    new RGraph.Scatter({
        id: 'cvs',
        data: [[45,36],[156,32],[142,23],[256,59],[123,48]],
        options: {
            xmax: 365,
            ymax: 60,
            labels: ['Q1','Q2','Q3','Q4'],
            ylabelsCount: 6,
            numyticks: 12,
            backgroundHbars: [
                [0,45,'rgba(0,255,0,0.2)'],
                [45,10,'rgba(255,255,0,0.2)'],
                [55,5,'rgba(255,0,0,0.2)']
            ]
        }
    }).draw();
</script>