A stepped Line chart with bulging horizontal lines

[No canvas support]

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="750" height="350">[No canvas support]</canvas>
This is the code that generates the chart - it should be placed AFTER the canvas tag(s):