var j$ = jQuery;

j$(function(){
	j$(".acc").each(function(){
		j$("li > a", this).each(function(index){
			var $this = j$(this);

			if(index >= 0) $this.next().hide();

			$this.click(function(){
				var params = {height:"toggle", opacity:"toggle"};
				j$(this).next().animate(params).parent().siblings()
					.children("ul:visible").animate(params);
				return false;
			});
		});
	});
});