window.addEvent('domready', function() {
$$('.mo').each(function(el, i) {
	var ExampleFx = new Fx.Style(el, 'opacity', { 
	wait: false,
	duration: 350,
	transition: Fx.Transitions.Quart.easeInOut});
		el.addEvent('mouseenter', function() { ExampleFx.start(1, 0.01); });
		el.addEvent('mouseleave', function() { ExampleFx.start(0.01, 1); });
});
});