<html>
<body>
<img src="/demo/planets.gif" width="145" height="126" usemap="#planetmap">
<map name="planetmap">
<area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm">
</map>
<p>Venus area's protocol:
<script>
document.write(document.getElementById('venus').protocol);
</script>
</p>
</body>
</html>