A filled spline Line chart

[No canvas support]

This goes in the documents header:
<script src="RGraph.common.core.js"></script>
<script src="RGraph.common.dynamic.js"></script>
<script src="RGraph.common.tooltips.js"></script>
<script src="RGraph.common.effects.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>

<button onclick="accumulative = !accumulative; line.Set('filled.accumulative', accumulative); RGraph.Redraw();"> Toggle accumulative</button>
This is the code that generates the chart:
<script>
    accumulative = true;

    line = new RGraph.Line({
        id: 'cvs',
        data: [ [4,5,1,6,3,8,2], [4,8,6,3,5,2,4] ],
        options: {
            marginBottom: 35,
            shadow: false,
            spline: true,
            backgroundGrid: false,
            tickmarksStyle: 'circle',
            linewidth: 5,
            hmargin: 5,
            xaxisLabels: ['Mon','Tue','Wed','Thu','Fri','Sat','Sun'],
            filled: true,
            filledAccumulative: accumulative,
            filledColors: ['rgba(255,0,0,0.3)', 'rgba(0,255,0,0.3)','rgba(0,0,255,0.3)'],
            tooltips: ['Mon','Tue','Wed','Thu','Fri','Sat','Sun','Mon','Tue','Wed','Thu','Fri','Sat','Sun']
        }
    }).draw();
</script>