A dual color Line chart

[No canvas support]

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>
    line = new RGraph.Line({
        id: 'cvs',
        data: [5,4,1,6,null,null,null],
        options: {
            xaxisLabels: ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'],
            colors: ['black'],
            title: 'A dual color line chart',
            titleSize: 16,
            titleBold: true,
            tickmarksStyle: 'filledcircle',
            tickmarksSize: 5,
            shadow: false,
            marginTop: 35,
            marginRight: 30,
            marginLeft: 30
        }
    }).draw();


    line2 = new RGraph.Line({
        id: 'cvs',
        data: [null,null,null,6,5,4,3],
        options: {
            colors: ['red'],
            tickmarksStyle: 'filledcircle',
            tickmarksSize: 5,
            shadow: false,
            backgroundGrid: false,
            axes: false,
            marginTop: 35,
            marginRight: 30,
            marginLeft: 30
        }
    }).draw();
</script>