$(function (){
	
	var hard_news = $('#frontpage4 ul.hard_news li');
	
	var hover = function (elem) {
		hard_news.removeClass('on');
		$(elem).addClass('on');
	};
	
	var inter;
	var rotate = function () {
		inter = setInterval(function(){
			var next = hard_news.filter('.on').next();
			hover(next.length && next || hard_news.eq(0));
		}, 5000);
	};
	var rotate_off = function () {
		clearInterval(inter);
	};
	
	var hard_links = $('a', hard_news).hover(function(){
		hover($(this).parents('li:eq(0)'));
		rotate_off();
	}, rotate);
	
	rotate();
	
});