Line chart with scrolling effect

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>
    data = RGraph.array_pad([], 500);

    function DrawGraph ()
    {
        RGraph.clear(document.getElementById("cvs"));
        RGraph.ObjectRegistry.clear();

        var line = new RGraph.Line({
            id: 'cvs',
            data: data,
            options: {
                colors: ['green'],
                linewidth: 1,
                filled: true,
                fillstyle: 'rgba(128,255,128,0.5)',
                ymax: 60,
                tickmarks: null,
                shadow: false,
                numxticks: 5,
                labels: ['Now','25s','50s','75s','100s','125s'],
                backgroundGridAutofitNumvlines: 5,
                textAccessible: true
            }
        }).draw();
        


        r    = RGraph.random(45,55);
        data = [r].concat(data);
        data.pop();

        
        setTimeout(DrawGraph, 250);
    }
    
    window.onload = function ()
    {
        DrawGraph();
    };
</script>