window.addEvent('domready', function() {
	var nav_chain = new Chain();
	$$('#nav li').each(function(li) {
		if (!li.hasClass('selected')) {
			li.setStyle('opacity', 0);
			var fx = new Fx.Tween(li, {
				duration: 300,
				wait: false,
				transition: 'cubic:in'
			});
			nav_chain.chain(function(){
				fx.start('opacity', 1);
			});
		}
	});
	var nav_run = function() { 
		if (nav_chain.callChain() == false) {
			nav_run = $clear(nav_timer);
		}
	}
	var nav_timer = nav_run.periodical(50);
});