title: JSTL if-statement inside HTML-attribute
body: <p>is it possible to do something like this in JSTL:</p>
  
  <pre><code>&lt;div class="firstclass&lt;c:if test='true'&gt; someclass&lt;/c:if&gt;"&gt;
     &lt;p&gt;some other stuff...&lt;/p&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Is there any way to get this to work, or is there a better way to add a class by looking at a JSTL-if-statement?</p>