<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <title>derivation editor</title>
  <script src="raphael.js" type="text/javascript" charset="utf-8"></script>
  <script src="r.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
  <div id="holder"></div>
</body>
</html>