(function($){

	function banner_func(hover){
		$("#banner li, #banner .navi button").removeClass("on");
		$("#banner li:eq("+hover+"), #banner .navi button:eq("+hover+")").addClass("on");
	};

	$(document).ready(function(){
		$("#banner .navi button").hover(function(){
			var hover = Number($(this).attr("rel"))-1;
			banner_func(hover);
		});

		function bannerInterval(){
			var current = $("#banner li.on").index()+1;
			var length = $("#banner li").length;
			if(current==length) current = 0;

			banner_func( current );
		};

		bannerTrigger = setInterval(bannerInterval, 5000);
	});
})(jQuery);