 <p>I think you're confusing the properties which pluck() works on with HTML attributes. It's anyway easier to add the pseudo class of checked as part of the initial selector, like:</p> <pre><code>$$('li.litemd input:checked').each(function(s) { alert(s.next().innerHTML); }); </code></pre> <p><a href="http://jsfiddle.net/tXXwD/1/" rel="nofollow">Example</a></p>