function initIE6ExceptionalClasses() {
  // @TODO IE6 exception
  $$('ul.commandButtons li').each(function(liElement) {
    liElement.onmouseover = function() {
      this.getElements('UL').setStyle('display', 'block');
      $$('div#sidebar select').setStyle('visibility', 'hidden');
    }
    liElement.onmouseout = function() {
      this.getElements('UL').setStyle('display', 'none');
      $$('div#sidebar select').setStyle('visibility', 'visible');
    }
  });

  $$('ul.commandLinks li').each(function(liElement) {
    liElement.onmouseover = function() {
      this.getElements('UL').setStyle('display', 'block');
      $$('div#sidebar select').setStyle('visibility', 'hidden');
    }
    liElement.onmouseout = function() {
      this.getElements('UL').setStyle('display', 'none');
      $$('div#sidebar select').setStyle('visibility', 'visible');
    }
  });
}