A basic SVG Vertical Progress Bar using the AJAX getNumber() function

This is a demo of an SVG Bar chart that has been configured to act as a progress bar and which is fetching the value by making use of the AJAX getNumber() function. The getNumber() function is an easy way to fetch a single value from your server (and which is given to you as a true JavaScript number - not a string.

This goes in the documents header:
<script src="RGraph.svg.common.core.js"></script>
<script src="RGraph.svg.common.ajax.js"></script>
<script src="RGraph.svg.bar.js"></script>
Put this where you want the chart to show up:
<div style="width: 100px; height: 300px" id="chart-container"></div>
This is the code that generates the chart:
<script>
    RGraph.SVG.AJAX.getNumber('/getdata.html', function (num)
    {
        // This bar chart becomes the background
        new RGraph.SVG.Bar({
            id: 'chart-container',
            data: [100],
            options: {
                marginLeft: 45,
                colors: ['#ddd'],
                backgroundGrid: false,
                xaxis: false,
                yaxis: false,
                yaxisScale: false,
                yaxisScaleMax: 100,
                shadow: true,
                shadowOpacity: .1
            }
        }).draw();

        var bar = new RGraph.SVG.Bar({
            id: 'chart-container',
            data: [num],
            options: {
                marginLeft: 45,
                colors: ['Gradient(red:#fcc)'],
                backgroundGrid: false,
                xaxis: false,
                yaxis: false,
                yaxisScaleMax: 100,
                hmargin: 8
            }
        }).grow();
    });
</script>