window.addEvent('load', function(){
	
		$$('.sm-node').setStyle('display', 'block');
		$$('li.group').each(function(li){
			var link = li.getElement('span');
			var block = li.getElement('ul.sm-node');
			if(block){
				var fx = new Fx.Slide(block);
				fx.hide();
				link.addEvent('click', function(){
				fx.toggle();
				link.setHTML('-');
				if (link.hasClass('active')){
					 link.removeClass('active').addClass('inactive');
					 link.setHTML('+');
					}
					else {
					 link.removeClass('inactive').addClass('active');
					 link.setHTML('-');
					}				
				});
			};
		});
	});

	document.write('<style type="text/css" media="screen">ul.sm-node{display: none}</style>');