JQery 渐变图片导航效果代码漂亮

图片如上。。下载图片试试。。效果不错哦。。JS就直接连接远程就可以了

代码复用性差。。希望高手指点下，应该怎么样才好

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>测试导航</title> 
<script src="http://img.jb51.net/jslib/jquery/jquery.js" type="text/javascript"></script> 
<script type="text/javascript"> 
$(document).ready(function() 
{ 
var datacss=["home","game","zine","community","calendar","participate"]; 
for(var i=0;i<datacss.length;i++) 
{ 
$("#"+datacss[i]).append("<div class='"+datacss[i]+"'></div>"); 
$("."+datacss[i]).css('opacity', 0); 
$("#"+datacss[i]).hover( 
function() 
{ 
$("."+this.id).stop().animate({opacity: '1'},800); 
}, 
function() 
{ 
$("."+this.id).stop().animate({opacity: '0'},800); 
}); 
} 
}); 
</script> 
<style type="text/css"> 
body { } ul li{ list-style:none; float:left; margin:0; padding:0;} 
#home{background: url(navigation.jpg) top left no-repeat; 
width:90px; height:55px; 
} 
.home {background: url(navigation.jpg) 0 -55px no-repeat; 
width: 90px;height: 55px; 
} 
#game{background: url(navigation.jpg) -90px 0px; no-repeat; 
width:114px; height:55px; 
} 
.game{background: url(navigation.jpg) -90px -55px no-repeat; 
width:114px; height:55px; 
} 
#zine{background: url(navigation.jpg) -204px 0px; no-repeat; 
width:96px; height:55px; 
} 
.zine{background: url(navigation.jpg) -204px -55px no-repeat; 
width:96px; height:55px; 
} 
#community{background: url(navigation.jpg) -300px 0px; no-repeat; 
width:144px; height:55px; 
} 
.community{background: url(navigation.jpg) -300px -55px no-repeat; 
width:144px; height:55px; 
} 
#calendar{background: url(navigation.jpg) -446px 0px; no-repeat; 
width:137px; height:55px; 
} 
.calendar{background: url(navigation.jpg) -446px -55px no-repeat; 
width:137px; height:55px; 
} 
#participate{background: url(navigation.jpg) -583px 0px; no-repeat; 
width:135px; height:55px; 
} 
.participate{background: url(navigation.jpg) -583px -55px no-repeat; 
width:135px; height:55px; 
} 
</style> 
</head> 
<body> 
<ul> 
<li><a href="#"><div id="home"></div></a></li> 
<li><a href="#"><div id="game"></div></a></li> 
<li><a href="#"><div id="zine"></div></a></li> 
<li><a href="#"><div id="community"></div></a></li> 
<li><a href="#"><div id="calendar"></div></a></li> 
<li><a href="#"><div id="participate"></div></a></li> 
</ul> 
</body> 
</html> 