title: How do I get the http return code from an XHR object in mootools
body: <p>I am doing an AJAX request. In my <code>onFail</code> event of the <code>Request</code> I catch the <code>XHR</code> object.<br>
  What is the name of the member in this object that holds the code.<br>
  For that mater, I could not find a documentation that shows the list of members in that object.</p>