How to optimize jQuery code for adding classes (to different elements)?
<p><strong>Example HTML</strong> (for the sake of clarity):</p>

<pre><code>&lt;nav&gt;
    &lt;ul&gt;
        &lt;li class="top-navbar-channels"&gt;
            &lt;a href="#"&gt;&lt;/a&gt;
            &lt;div class="dropdown-menu"&gt;BLAH, BLAH, BLAH!&lt;/div&gt;
        &lt;/li&gt;

        &lt;li class="top-navbar-about"&gt;
            &lt;a href="#"&gt;&lt;/a&gt;
            &lt;div class="dropdown-menu-about"&gt;BLAH, BLAH, BLAH!&lt;/div&gt;
        &lt;/li&gt;

        &lt;li class="top-navbar-search"&gt;
            &lt;a href="#"&gt;&lt;/a&gt;
            &lt;div class="dropdown-menu-search"&gt;BLAH, BLAH, BLAH!&lt;/div&gt;
        &lt;/li&gt;
    &lt;/ul&gt;
&lt;/nav&gt;
</code></pre>

<p><strong>Example jQuery code:</strong></p>

<pre><code>jQuery(document).ready(function($){

    $('.dropdown-menu').on('show', function () {
        $('.top-navbar-channels &gt; a').addClass('selected');
    });
    $('.dropdown-menu').on('hide', function () {
        $('.top-navbar-channels &gt; a').removeClass('selected');
    });

    $('.dropdown-menu-about').on('show', function () {
        $('.top-navbar-about &gt; a').addClass('selected');
    });
    $('.dropdown-menu-about').on('hide', function () {
        $('.top-navbar-about &gt; a').removeClass('selected');
    });

    $('.dropdown-menu-search').on('show', function () {
        $('.top-navbar-search &gt; a').addClass('selected');
    });
    $('.dropdown-menu-search').on('hide', function () {
        $('.top-navbar-search &gt; a').removeClass('selected');
    });

});
</code></pre>

<p><strong>For those who are curious...</strong> the jQuery code adds a new class <code>selected</code> to the active menu item's link. In my case it's <a href="http://twitter.github.com/bootstrap/javascript.html#collapse" rel="nofollow">Twitter Bootstrap-based collapsible menu</a>, where active means, the menu item is not collapsed i.e. open.</p>

<p>Now, the question is, can the jQuery code be optimized (i.e. same functionality with less code)? If so, how?</p>
