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<html>
<body>
<script type="text/javascript">
x=parent.document.getElementsByTagName("frame")[0];
y=parent.document.getElementsByTagName("frame")[1];
document.write("The id for the left frame is: ");
document.write(x.id);
document.write("<br />The id for the right frame is: ");
document.write(y.id);
</script>
</body>
</html>