$(document).ready(function() { 
	Shadowbox.init({ 
		overlayOpacity: 0.9
	});
	$('.fourth li a').hover(function() { 
		$(this).children('img').animate({ 
			opacity: 0.3
		}, 150, function() { 
		
		}); 
	}, function() { 
		$(this).children('img').animate({ 
			opacity: 1
		}, 150, function() { 
		
		}); 
	}); 
});