title: Delete cookie by name?
body: <p>How can I delete a specific cookie with the name <code>roundcube_sessauth</code>?</p>
  
  <p>Shouldn't the following:</p>
  
  <pre><code>function del_cookie(name) {
      document.cookie = 'roundcube_sessauth' + 
      '=; expires=Thu, 01-Jan-70 00:00:01 GMT;';
  } 
  </code></pre>
  
  <p>And then:</p>
  
  <pre><code>&lt;a href="javascript:del_cookie(name);"&gt;KILL&lt;/a&gt;
  </code></pre>
  
  <p>Kill the <code>roundcube_sessauth</code> cookie?</p>