window.addEvent('domready', function() { 
   if($$('.moo-toggler').length >0){
     var myAccordion = new Fx.Accordion($$('.moo-toggler'), $$('.moo-element'), {
          alwaysHide: true,
          opacity: true,
          alwaysHide: true,
          start:'all-close'
      });   
   }                                                             
});