A Line chart with background horizontal bars

This goes in the documents header:

<script src="RGraph.common.core.js"></script>
<script src="RGraph.line.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>
    window.onload = function ()
    {
        var line = new RGraph.Line({
            id: 'cvs',
            data: [26,4,-15.5,17,42.5,25],
            options: {
                labels: ['2007', '2008', '2009', '2010', '2011', '2012'],
                backgroundHbars: [
                    [-55,-5,'rgba(255,0,0,0.2)'],
                    [-45,-10,'rgba(255,255,0,0.2)'],
                    [-45,90,'rgba(0,255,0,0.2)'],
                    [45,10,'rgba(255,255,0,0.2)'],
                    [55,5,'rgba(255,0,0,0.2)']
                ],
                xaxispos: 'center',
                ymax: 60,
                linewidth: 5,
                hmargin: 5,
                colors: ['black'],
                textAccessible: true
            }
        }).draw();
    };
</script>