var current_news = -1;

window.addEvent("domready", function() {
	rotateNews();
	rotateNews.periodical(5000);
}); 

function rotateNews () {
	var news = $$('.items li');
	if (current_news >= 0) {
		news[current_news].setStyle('display', 'none');
	}
	if (++current_news >= news.length) {
		current_news = 0;
	}
	news[current_news].setStyle('display', 'block');
}