window.addEvent('domready', function() {
									 
	$$('#side-menu li').each(function(el, i) {
		var parent = el.getParent();
		

		if(el.getChildren('ul').length > 0) {
			el.addClass('expandable');			
			
			el.getChildren('a').addEvent('click', function(ev){
				var child = this.getParent().getChildren('ul');
				child.toggleClass('index');
				this.getParent().toggleClass('expanded');

				ev.stop();
			});
		}

	});
	
});