An image based Meter chart with background and needle images

This Meter uses CSS width/height units on the canvas tag to scale the whole Meter down (the image is 640x640 but the canvas is sized by CSS to 400x400).

[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.meter.js"></script>
Put this where you want the chart to show up: 
<canvas id="cvs" width="640" height="640" style="width: 400px; height: 400px">
    [No canvas support]
</canvas>
This is the code that generates the chart: