 attribute of the <code>UIColumn</code>
            component is not present, output the value of the "headerClass"
            attribute of the <code>UIData</code> component, if
            present, as
            the value of the "class" attribute on the "th". Output "col" as
            the value of the "scope" attribute on the "th" element.
            </p>
            <p>Close out the "thead" element.</p>
            </ul>
            <p>Rendering the footer</p>
            <ul>
            <p>Follow t