<body>
<script type="text/javascript">
<!--
function toggle_visibility(id) {
var e = document.getElementById(id);
if(e.style.display == 'none')
e.style.display = 'block';
else
e.style.display = 'none';
}
//-->
</script>
<a onclick="toggle_visibility('foo');"><b><u>Click to
view</b></u></a><div id="foo" style=display:none;>{param}</div>
</body>