title: Add active class to nav links with exception for some li
body: <p>I have <code>ul.menu</code> for which few <code>li</code> are styled differently, therefore those <code>li</code>  dont need to add active class.</p>
  
  <pre><code>&lt;ul class="menu"&gt;
     &lt;li id="1st" class="default"&gt;&lt;a href="#"&gt;Text1&lt;/a&gt;&lt;/li&gt;
     &lt;li id="2nd" class="default"&gt;&lt;a href="#"&gt;Text2&lt;/a&gt;&lt;/li&gt;
     &lt;li class="cross-out"&gt;&lt;a href="#"&gt;Text3&lt;/a&gt;&lt;/li&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p>jQuery to add active class for first two links, except <code>li.cross-out</code></p>
  
  <pre><code>$('ul.menu li').click(function(){
      $('ul.menu li').removeClass('active');
      $(this).not('cross-out').addClass('active');
  });
  </code></pre>
  
  <p>What is wrong? Hope I was clear enough...</p>