A curvy Line chart with multiple lines

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>

This is the code that generates the chart:

<script>
    window.onload = function ()
    {
        var line = new RGraph.Line({
            id: 'cvs',
            data: [
                [4,5,1,6,3,5,2],
                [7,7,8,6,2,1,1]
            ],
            options: {
                spline: true,
                splineTickmarksFill: null,
                splineTickmarksSize: 5,
                splineTickmarksStroke: '#aaa',
                splineTickmarksLinewidth: 2,
                linewidth: 3,
                hmargin: 5,
                labels: ['Mon','Tue','Wed','Thu','Fri','Sat','Sun'],
                tooltips: ['Mon','Tue','Wed','Thu','Fri','Sat','Sun'],
                tickmarks: 'circle',
                textAccessible: true
            }
        }).trace2();
    };
</script>