></example>
        <p>In general, this update function is called whenever the underlying
            shared "data" structure is changed. This happens when the user clicks
            a button, selects a list item or a menu. Next we will look at a typical
        callback.</p>
                 <p><small>(Full source code for this application is available here: 
                     [ <a href="Examples/demoBrowser.m">view</a>
                     | <a href="matlab: edit(fullfile(layoutDocRoot,'Examples','dem