window.addEvent('domready', function(){
      var accordion = new Accordion('h4.atStart', 'div.atStart', {
        opacity: false,
        onActive: function(toggler, element){
          toggler.setStyle('background', 'f8f8f8 url("/css/images/navigation/bg-nav-arrow-grey-down.gif") 10px 6px no-repeat');
        },
        onBackground: function(toggler, element){
          toggler.setStyle('background-image', 'url("/css/images/navigation/bg-nav-arrow-grey.gif")');
        }
      }, $('accordion'));
      //var newTog = new Element('h4', {'class': 'toggler'}).setHTML('Common descent');
      //var newEl = new Element('div', {'class': 'element'}).setHTML('<p>...</p>');
      //accordion.addSection(newTog, newEl, 0); accordion.addSection(newTog, newEl, 0); alert("the dom is ready");
    });