<div id="demo">

<p><em>Click me.</em></p>

</div>

<script type="text/javascript">

YUI().use('node', function(Y) {

var node = Y.one('#demo p');

var onClick = function(e) {

// e.target === node || #demo p em

var tag = e.target.get('parentNode.tagName');

// e.currentTarget === node

e.currentTarget.one('em').setContent('I am a child of ' + tag + '.');

};

node.on('click', onClick);

});

</script>