title: No Event object on Scroll Event in MooTools?
body: <p>I am getting an undefined value for the event object that I think should be available in the callback for the addEvent() function. This is what I'm doing. </p>
  
  <pre><code>element.addEvent('scroll', callback(event) {
    console.log(event);
  });
  // on scroll, event is 'undefined'
  </code></pre>
  
  <p>I tested the same code attaching the callback to the <code>click</code> event instead and in that case the event variable was defined as you'd imagine. What am I missing here? My utlimate goal is to stop the normal effect of the scroll, i.e. prevent scrolling, so that I can scroll with an ease function using Fx.Scroll... </p>