title: How to set re-captcha in joomla 2.5?
body: <p>In joomla 2.5 there is built in for re-captcha in </p>
  
  <pre><code>Site &gt; Global Configuration
    &gt; site : Default Captcha
  </code></pre>
  
  <p>But there is no option in the input box this has <code>-None Selected-</code> only.</p>