span></p>
  
  <script type="text/javascript">
    $w('left middle right').each(function(button) {
      Event.observe(button, 'mousedown', function(e) {
	  if (Event['is' + this.id.capitalize() + 'Click'](e)) this.passed('Squeak!')
	  else this.failed('OH NO!');
	  log(e);
      });
    });
  </script>
  
  <p id="context">Context menu event (tries to prevent default)</p>
  
  <script type="text/javascript">
    $('context').observe('contextmenu', function(e){
      this.passed();
      Event.stop(e);
    