[Css-jQuery] Effetto scala grigi all’hover dell’immagine

CODICE HTML

 
<ul class="gallery">
<li>
		<a href="#" class="thumb"><span><img src="image.gif" alt="" /></span></a>
<h2><a href="#">Image Name</a></h2>
</li>
</ul>
 

CODICE CSS

 
ul.gallery {
	width: 708px; /*--Adjust width according to your scenario--*/
	list-style: none;
	margin: 0; padding: 0;
}
ul.gallery li {
	float: left;
	margin: 10px; padding: 0;
	text-align: center;
	border: 1px solid #ccc;
	-moz-border-radius: 3px; /*--CSS3 Rounded Corners--*/
	-khtml-border-radius: 3px; /*--CSS3 Rounded Corners--*/
	-webkit-border-radius: 3px; /*--CSS3 Rounded Corners--*/
	display: inline; /*--Gimp Fix aka IE6 Fix - Fixes double margin bug--*/
}
ul.gallery li a.thumb {
	width: 204px; /*--Width of image--*/
	height: 182px; /*--Height of image--*/
	padding: 5px;
	border-bottom: 1px solid #ccc;
	cursor: pointer;
}
ul.gallery li span { /*--Used to crop image--*/
	width: 204px;
	height: 182px;
	overflow: hidden;
	display: block;
}
ul.gallery li a.thumb:hover {
	background: #333; /*--Hover effect for browser with js turned off--*/
}
ul.gallery li h2 {
	font-size: 1em;
	font-weight: normal;
	text-transform: uppercase;
	margin: 0; padding: 10px;
	background: #f0f0f0;
	border-top: 1px solid #fff; /*--Subtle bevel effect--*/
}
ul.gallery li a {text-decoration: none; color: #777; display: block;}
 

CODICE JQUERY

 
$(document).ready(function() {
 
	$("ul.gallery li").hover(function() { //On hover...
 
		var thumbOver = $(this).find("img").attr("src"); //Get image url and assign it to 'thumbOver'
 
		//Set a background image(thumbOver) on the <a> tag - Set position to bottom
		$(this).find("a.thumb").css({'background' : 'url(' + thumbOver + ') no-repeat center bottom'});
 
		//Animate the image to 0 opacity (fade it out)
		$(this).find("span").stop().animate({opacity: 0}, 300);
 
	} , function() { //on hover out...
 
		//Animate the image back to 100% opacity (fade it back in)
		$(this).find("span").stop().animate({opacity: 1}, 300);
 
	});
 
});
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