title: WP + W3c Total Cache brokes responsive menu on Minify
body: <p>i have a responsive website and i have activaded w3c total cache.
  whenever i Minify, the responsive menu is misssing.
  This menu is activated on specific screen sizes, the code is:</p>
  
  <pre><code>&lt;div class="main-nav"&gt;
    &lt;div id="responsive_current_menu_item"&gt;Welcome to Yum Yum Videos!&lt;/div&gt;
      &lt;ul id="menu-top-menu" class="menu"&gt;
        &lt;li&gt;...&lt;/li&gt;
      &lt;/ul&gt;
      &lt;a id="responsive_menu_button"&gt;&lt;/a&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>The problem is, that whenever i minify, the <code>id="responsive_current_menu_item"</code> and <code>id="responsive_menu_button"</code> simply dissapear from code.</p>
  
  <p>you can see it in action <a href="http://www.pabloscillia.com.ar/clientes/yumyum/" rel="nofollow">here</a> (is the top menu, w3c tocal cache is deactivated in order to show responsive menu)</p>
  
  <p>any idea where i might take a look please?
  thanks a lot in advance</p>