A combined Bar and Line chart

This goes in the documents header:

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

Put this where you want the chart to show up:

<canvas id="cvs" width="900" height="250" style="background-color: #555; border: 5px solid black; border-radius: 7px; box-shadow: 2px 2px 3px gray">
    [No canvas support]
</canvas>

This is the code that generates the chart:

<script>
    window.onload = function ()
    {
        var bar = new RGraph.Bar({
            id: 'cvs',
            data: [81,90,75,85,90,78],
            options: {
                ymax: 100,
                backgroundGridVlines: false,
                backgroundGridBorder: false,
                backgroundGridColor: '#999',
                numyticks: 12,
                labels: ['1','2','3','4','5','6'],
                hmargin: 30,
                gutterTop: 10,
                gutterLeft: 45,
                gutterRight: 45,
                colors: ['#A18AC5'],
                textColor: '#ccc',
                axisColor: '#999',
                numxticks: 0,
                shadowColor: 'black',
                shadowOffsetx: 0,
                shadowOffsety: 0,
                shadowBlur: 15,
                scaleZerostart: true,
                strokestyle: 'rgba(0,0,0,0)',
                textAccessible: true
            }
        })



        var line = new RGraph.Line({
            id: 'cvs',
            data: [150,73,160,350,490,250],
            options: {
                ymax: 600,
                noaxes: true,
                backgroundGrid: false,
                linewidth: 7,
                colors: ['#d00'],
                yaxispos: 'right',
                axisColor: '#999',
                textColor: '#ccc',
                gutterLeft: 45,
                gutterRight: 45,
                tickmarks: null,
                textAccessible: true
            }
        })
        
        var combo = new RGraph.CombinedChart([bar, line])
            .draw();
        
        // Because the combo class turns the line chart labels off,
        // turn them back on
        line.set({
            ylabels: true,
            scaleZerostart: true
        });
        RGraph.redraw();
    };
</script>