title: problem with function getBaseUrl() in zend framework
body: <p>i have <code>BaseUrl</code> class in this path <code>application\views\helpers</code> </p>
  
  <pre><code>class Zend_View_Helper_BaseUrl {
      function baseUrl ()
      {
          $fc = Zend_Controller_Front::getInstance();
          return $fc-&gt;getBaseUrl();
      }
  }
  </code></pre>
  
  <p>but in my views when i use </p>
  
  <pre><code>echo $this-&gt;baseUrl(); 
  </code></pre>
  
  <p>its <code>null</code>;</p>
  
  <p>someone could help ?</p>
  
  <p>thanks</p>