title: Block scroll event in knockout.JS
body: <p>I need to reimplement the scroll functionality over an overflow area, so that the mousewheel changes the current selection rather than the scroll position.</p>
  
  <p>To do this at the very least, I need to block the default scroll action of the browser.
  From what I can tell knockout does this by default, provided that you don't return 'true' from the event handler.</p>
  
  <p>However it doesn't seem to work, nor does calling 'preventDefault' on the event explicitly. This problem must be specific to the scroll event.</p>
  
  <pre><code>scrolled: function (vm, event) {
      event.preventDefault();
      return false;
  }
  </code></pre>
  
  <p>Example: <a href="http://jsfiddle.net/vjLqauq5/2/" rel="nofollow">http://jsfiddle.net/vjLqauq5/2/</a></p>