document.observe('dom:loaded', function() {
	li = $$('#top_i div.top_i_butt span');

	pf = new Protofade($$('#top_i ul').first(), {
		autostart: true,
		updatefunction: function(slide) {
			li.each(function(el){
				el.removeClassName('sel');
			});
			
			li[slide].addClassName('sel');
		},
		duration: 1,
		delay: 15
	});

	li.each(function(el){
		el.observe('click', function() {
			cl = li.indexOf(el);
			pf.updateSlide(cl);
		});
	});
});