<html>
<body>
<img id="compman" src="/demo/compman.gif" lowsrc="compman_lowres.gif" alt="Computerman" width="107" height="98">
<br>
<script>
var x=document.getElementById("compman");
document.write('<a href="' + x.lowsrc + '">Low resolution</a>');
</script>
</body>
</html>