gistfile1.html

<script type="text/template" id="template-user">
    <div class="user">
        <h3>{name}</h3>
        <p>{lifeStory}</p>
    </div>
</script>
<script>
YUI().use('node', function(Y){
    var user        = { name: 'Eric', lifeStory: 'codes all day' },
        template    = Y.one('template-user').getContent();
        
    Y.Node.create(Y.Lang.sub(template, user)).appendTo('body');
});
</script>