Jquery 菜单

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演示地址:http://www.corange.cn/demo/3693/index.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">

<head>
<title>jQuery 菜单</title>

<style type="text/css">
h2 {clear:both;padding-top:20px;}
ul {list-style:none;margin:0;padding:0;}
li {float:left;width:100px;margin:0;padding:0;text-align:center;}
li a {display:block;padding:5px 10px;height:100%;color:#FFF;text-decoration:none;border-right:1px solid #FFF;}
li a {background:url(bg2.jpg) repeat 0 0;}
li a:hover, li a:focus, li a:active {background-position:-150px 0;}
#a a {background:url(bg.jpg) repeat -20px 35px;}
#b a {background:url(bg2.jpg) repeat 0 0;}
#c a {background:url(bg3.jpg) repeat 0 0;}
#d a {background:url(bg4.jpg) repeat 0 0;}
</style>

<script src="http://www.google.com/jsapi" type="text/javascript"></script>
<script type="text/javascript">
google.load("jquery", "1.2.6");
</script>
<script type="text/javascript" src="jquery.bgpos.js"></script>

<script type="text/javascript">

$(function(){
$('#a a')
.css( {backgroundPosition: "-20px 35px"} )
.mouseover(function(){
$(this).stop().animate({backgroundPosition:"(-20px 94px)"}, {duration:500})
})
.mouseout(function(){
$(this).stop().animate({backgroundPosition:"(40px 35px)"}, {duration:200, complete:function(){
$(this).css({backgroundPosition: "-20px 35px"})
}})
})
$('#b a')
.css( {backgroundPosition: "0 0"} )
.mouseover(function(){
$(this).stop().animate({backgroundPosition:"(-150px 0)"}, {duration:500})
})
.mouseout(function(){
$(this).stop().animate({backgroundPosition:"(-300px 0)"}, {duration:200, complete:function(){
$(this).css({backgroundPosition: "0 0"})
}})
})
$('#c a')
.css( {backgroundPosition: "0 0"} )
.mouseover(function(){
$(this).stop().animate({backgroundPosition:"(0 -250px)"}, {duration:500})
})
.mouseout(function(){
$(this).stop().animate({backgroundPosition:"(0 0)"}, {duration:500})
})
$('#d a')
.css( {backgroundPosition: "0 0"} )
.mouseover(function(){
$(this).stop().animate({backgroundPosition:"(0 -250px)"}, {duration:500})
})
.mouseout(function(){
$(this).stop().animate({backgroundPosition:"(0 0)"}, {duration:500})
})
});
</script>

</head>
<body>
<h1>jQuery Background Position</h1>
<h2>Example 0: No Script</h2>
<ul id="noscript">
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
</ul>

<h2>Example A: Top down</h2>
<ul id="a">
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
</ul>

<h2>Example B: Right left</h2>
<ul id="b">
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
</ul>
<h2>Example C: Fade 1-colour</h2>
<ul id="c">
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
</ul>
<h2>Example D: Fade 2-colour</h2>
<ul id="d">
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
</ul>
</body>

</html>
全部代码下载，不含jquery
http://www.corange.cn//uploadfiles/jquery menu_76615.rar