jQuery(document).ready(function($) {

  $('.rgaccordmenu ul').hide();
  $('.rgaccordmenu div.open').next().show(); // apre il menu corrente indicato con <div class="open">
  
  $('.rgaccordmenu div.open').addClass('act');
  $('.rgaccordmenu li div').click(
    function() {
	  $('.rgaccordmenu div.act').removeClass('act');
      $(this).addClass('act');
      var checkElement = $(this).next();
      if((checkElement.is('ul')) && (checkElement.is(':visible'))) {
        return false;
        }
      if((checkElement.is('ul')) && (!checkElement.is(':visible'))) {
        $('.rgaccordmenu ul:visible').slideUp('normal');
        checkElement.slideDown('normal');
        return false;
        }
      }
    );
	
});