A dual color Line chart

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: [5,4,1,6,null,null,null],
            options: {
                labels: ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'],
                colors: ['black'],
                title: 'A dual color line chart',
                tickmarks: 'filledcircle',
                ticksize: 5,
                shadow: false,
                gutterTop: 35,
                gutterRight: 30,
                gutterLeft: 30,
                textAccessible: true
            }
        }).draw();

        var line2 = new RGraph.Line({
            id: 'cvs',
            data: [null,null,null,6,5,4,3],
            options: {
                colors: ['red'],
                tickmarks: 'filledcircle',
                ticksize: 5,
                shadow: false,
                backgroundGrid: false,
                noaxes: true,
                gutterTop: 35,
                gutterRight: 30,
                gutterLeft: 30,
                textAccessible: true
            }
        }).draw();
    };
</script>