An adjustable Odo 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.odo.js"></script>
Put this where you want the chart to show up:
<canvas id="cvs" width="300" height="300">
    [No canvas support]
</canvas>
This is the code that generates the chart:
<script>
    new RGraph.Odometer({
        id: 'cvs',
        min: 0,
        max: 100,
        value: 45,
        options: {
            adjustable: true
        }
    }).draw();
</script>