I have a series of slides based off of sections:

<div id=slides>

    <section id=first>

        <section>

            <table>

                <thead>

                </thead>

                <tbody>

                    <tr id=somethingUnique>

                    ...

                    </tr>

                </tbody>

            </table>

        </section>

        <section>

            <table>

                <thead>

                </thead>

                <tbody>

                    <tr id=somethingUnique>

                    ...

                    </tr>

                </tbody>

            </table>

        </section> 

       ...

    </section>

</div>

I need to select grab the ID of the last row from the table in the last section of #first section.

I'm using the following Jquery, getting undefined back...any ideas?

    var lastListItem = $('#first:last-child table>tbody>tr:last').attr(id);

    alert(lastListItem);