An SVG clipped red and black Line chart

This is an SVG chart that uses a different color for the top half compared to the bottom half. You could use it to show a financial chart where the top half is black and the bottom half is red. There's a HOWTO document available of this technique.

This goes in the documents header:
<script src="RGraph.svg.common.core.js"></script>
<script src="RGraph.svg.line.js"></script>
Put this where you want the chart to show up:
<div style="position: relative; width: 700px; height: 300px">
    <div id="cc1" style="width: 700px; height: 300px; position: absolute; top: 0; left: 0"></div>
    <div id="cc2" style="width: 700px; height: 300px; position: absolute; top: 0; left: 0"></div>
</div>
This is the code that generates the chart: