An adjustable Gantt chart

This goes in the documents header:

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

Put this where you want the chart to show up:

<canvas id="cvs" width="800" height="350">
    [No canvas support]
</canvas>

This is the code that generates the chart:

<script>
    var data = [
        [31, 28, 67, 'Richard'], [0, 28, 50, 'Rachel'], [12, 28, 45, 'Fred'],
        [59, 14, 0, 'Barney'],   [59, 21, 5, 'Gloria'], [46, 31, 92, 'Paul'],
        [80, 21, 46, 'Harry'],   [94, 17, 84, 'Shane'], [34, 14, 32, 'Kyle'],
        [64, 14, 28, 'Cynthia'], [13, 61, 74, 'Mabel'], [84, 31, 16, 'Paul'],
        [80, 22, 45, 'Kiffen'], [0, 115, 50, 'John']
    ];

    new RGraph.Gantt({
        id: 'cvs',
        data: data,
        options: {
            labels: ['January', 'February', 'March', 'April'],
            xmax: 122,
            labelsPercent: true,
            backgroundGridAutofitNumvlines: 4,
            adjustable: true
        }
    }).draw();
</script>