Merry Christmas and to all a good night!
<html>
<head>
<title>Merry Christmas</title>
<script type="text/javascript">
function MerryChristmas()
{
alert ("Merry Christmas!");
}
</script>
</head>
<body>
<a href="javascript:MerryChristmas()">MerryChristmas</a>
</body>
</html>