jquery动感漂浮导航菜单代码分享

 这是一款基于jquery实现动感漂浮导航菜单的特效代码，菜单可以上下浮动，动感十足，为自己的网站增加了活力，是一款非常实用的导航菜单特效源码。

运行效果图：

为大家分享的jquery动感漂浮导航菜单代码如下

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title>jQuery Floating Menu</title>

<script type="text/javascript" src="js/jquery-1.3.1.min.js"></script>

<script type="text/javascript" src="js/jquery.easing.1.3.js"></script>

<script>

$(document).ready(function () {

//get the default top value

var top_val = $('#menu li a').css('top');

//animate the selected menu item

$('#menu li.selected').children('a').stop().animate({top:0}, {easing: 'easeOutQuad', duration:500});

$('#menu li').hover(

function () {

//animate the menu item with 0 top value

$(this).children('a').stop().animate({top:0}, {easing: 'easeOutQuad', duration:500});

},

function () {

//set the position to default

$(this).children('a').stop().animate({top:top_val}, {easing: 'easeOutQuad', duration:500});

//always keep the previously selected item in fixed position

$('#menu li.selected').children('a').stop().animate({top:0}, {easing: 'easeOutQuad', duration:500});

}

);

});

</script>

<style>

#menu {

list-style:none;

padding:0;

margin:0 auto;;

height:70px;

width:600px;

}

#menu li {

float:left;

width:109px;

height:inherit;

position:relative;

overflow:hidden;

}

#menu li a {

position:absolute;

top:20px;

text-indent:-999em;

background:url(menu.png) no-repeat 0 0;

display:block;

width:109px;

height:inherit;

/* fast png fix for ie6 */

position:relative;

behavior: expression((this.runtimeStyle.behavior="none")&&(this.pngSet?this.pngSet=true:(this.nodeName == "IMG" && this.src.toLowerCase().indexOf('.png')>-1?(this.runtimeStyle.backgroundImage = "none",

this.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.src + "', sizingMethod='image')",

this.src = "transparent.gif"):(this.origBg = this.origBg? this.origBg :this.currentStyle.backgroundImage.toString().replace('url("','').replace('")',''),

this.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.origBg + "', sizingMethod='crop')",

this.runtimeStyle.backgroundImage = "none")),this.pngSet=true));

}

</style>

</head>

<body>

<br/><br/><br/>

<ul id="menu">

<li><a href="#">Item 1</a></li>

<li><a href="#">Item 2</a></li>

<li><a href="#">Item 3</a></li>

<li><a href="#">Item 4</a></li>

<li><a href="#">Item 5</a></li>

</ul>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

<title>jQuery Floating Menu</title>

<script type="text/javascript" src="js/jquery-1.3.1.min.js"></script>

<script type="text/javascript" src="js/jquery.easing.1.3.js"></script>

<script>

$(document).ready(function () {

//get the default top value

var top_val = $('#menu li a').css('top');

//animate the selected menu item

$('#menu li.selected').children('a').stop().animate({top:0}, {easing: 'easeOutQuad', duration:500});

$('#menu li').hover(

function () {

//animate the menu item with 0 top value

$(this).children('a').stop().animate({top:0}, {easing: 'easeOutQuad', duration:500});

},

function () {

//set the position to default

$(this).children('a').stop().animate({top:top_val}, {easing: 'easeOutQuad', duration:500});

//always keep the previously selected item in fixed position

$('#menu li.selected').children('a').stop().animate({top:0}, {easing: 'easeOutQuad', duration:500});

}

);

});

</script>

<style>

#menu {

list-style:none;

padding:0;

margin:0 auto;;

height:70px;

width:600px;

}

#menu li {

float:left;

width:109px;

height:inherit;

position:relative;

overflow:hidden;

}

#menu li a {

position:absolute;

top:20px;

text-indent:-999em;

background:url(menu.png) no-repeat 0 0;

display:block;

width:109px;

height:inherit;

/* fast png fix for ie6 */

position:relative;

behavior: expression((this.runtimeStyle.behavior="none")&&(this.pngSet?this.pngSet=true:(this.nodeName == "IMG" && this.src.toLowerCase().indexOf('.png')>-1?(this.runtimeStyle.backgroundImage = "none",

this.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.src + "', sizingMethod='image')",

this.src = "transparent.gif"):(this.origBg = this.origBg? this.origBg :this.currentStyle.backgroundImage.toString().replace('url("','').replace('")',''),

this.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + this.origBg + "', sizingMethod='crop')",

this.runtimeStyle.backgroundImage = "none")),this.pngSet=true));

}

</style>

</head>

<body>

<br/><br/><br/>

<ul id="menu">

<li><a href="#">Item 1</a></li>

<li><a href="#">Item 2</a></li>

<li><a href="#">Item 3</a></li>

<li><a href="#">Item 4</a></li>

<li><a href="#">Item 5</a></li>

</ul>

以上就是为大家分享的jquery动感漂浮导航菜单代码，希望大家可以喜欢。