window.addEvent('domready', function() {
					
	$$('.photo').each(function(el, it) {
		el.set('tween', { duration: 200 }); 
		el.setStyle('opacity', '0.6');
		
		el.addEvent('mouseenter', function(ev) {
			el.fade(1.0);
			ev.stop();
		});
		
		el.addEvent('mouseleave', function(ev) {
			el.fade(0.6);
			ev.stop();
		});
	});
	
});