Virrt,
Вариант...
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
</head>
<body>
<div><div id='divId'>imkw</div></div>
<script>
function test() {
i = document.getElementById('divId');
i.onclick = function() { alert('WTF') }
i.parentNode.appendChild(document.createTextNode('P.S. ..'));
}
test();
</script>
</body>
</html>