如题:现在想把下边的程序改成当鼠标离开时下拉菜单不关闭,求教各位高手
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<title>简洁的横向二级下拉导航菜单 </title>
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<style type="text/css">
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* {margin:0;padding:0;border:0;}
body { font-family: arial, 宋体, serif;font-size:12px;}
#nav { height: 24px; list-style-type: none; padding-left:200px;line-height:24px;overflow:hidden;background:#999;}
#nav a {display: block; width: 80px; text-align:center;}
#nav a:link { color:#EEE; text-decoration:none;}
#nav a:visited {color:#EEE;text-decoration:none;}
#nav a:hover {color:#FFF;text-decoration:none;font-weight:bold;background:#CCC;}
#nav li { float: left; width: 80px;}
#nav li ul {line-height: 24px; list-style-type: none;text-align:left;left: -999px; width: 510px; position: absolute;background:#CCC;}
#nav li ul li{float: left;width: 80px;}
#nav li ul a{display: block; width: 65px;text-align:left;padding-left:15px;}
#nav li ul a:link { color:#F1F1F1; text-decoration:none;}
#nav li ul a:visited {color:#F1F1F1;text-decoration:none;}
#nav li ul a:hover {color:#FFF;text-decoration:none;font-weight:normal;background:#C00;}
#nav li:hover ul {left:25%;}
#nav li.sfhover ul { left:25%;}
#content {clear: left;}
-->
</style>
<script type=text/javascript>
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function showMenu(_obj){
var x=_obj.offsetLeft;
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w=_obj.getElementsByTagName("ul")[0].offsetWidth
_obj.getElementsByTagName("ul")[0].style.left=x+W/2-w/2+20
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function menuFix() {
var sfEls = document.getElementById("nav").getElementsByTagName("li");
for (var i=0; i <sfEls.length; i++) {
if (sfEls[i].parentNode.id=="nav"){
sfEls[i].onmouseover=function() {showMenu(this)}
sfEls[i].onMouseDown=function() {showMenu(this)}
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sfEls[i].onmouseout=function() {this.className=this.getElementsByTagName("ul")[0].style.left="-999px";}
}
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}
window.onload=menuFix;
//--> <!]]>
</script>
</head>
<body>
<!--把下面代码加到 <body>与 </body>之间-->
<ul id="nav">
<li> <a href="#">菜单1 </a>
<ul>
<li> <a href="#">菜单1_1 </a> </li>
<li> <a href="#">菜单1_2 </a> </li>
<li> <a href="#">菜单1_3 </a> </li>
<li> <a href="#">菜单1_4 </a> </li>
<li> <a href="#">菜单1_5 </a> </li>
<li> <a href="#">菜单1_6 </a> </li>
</ul>
</li>
<li> <a href="#">菜单2 </a>
<ul>
<li> <a href="#">菜单2_1 </a> </li>
<li> <a href="#">菜单2_2 </a> </li>
<li> <a href="#">菜单2_3 </a> </li>
<li> <a href="#">菜单2_4 </a> </li>
<li> <a href="#">菜单2_5 </a> </li>
</ul>
</li>
<li> <a href="#">菜单3 </a>
<ul>
<li> <a href="#">菜单3_1 </a> </li>
<li> <a href="#">菜单3_2 </a> </li>
<li> <a href="#">菜单3_3 </a> </li>
<li> <a href="#">菜单3_4 </a> </li>
</ul>
</li>
<li> <a href="#">菜单4 </a>
<ul>
<li> <a href="#">菜单4_1 </a> </li>
<li> <a href="#">菜单4_2 </a> </li>
<li> <a href="#">菜单4_3 </a> </li>
</ul>
</li>
<li> <a href="#">菜单5 </a>
<ul>
<li> <a href="#">菜单5_1 </a> </li>
<li> <a href="#">菜单5_2 </a> </li>
</ul>
</li>
<li> <a href="#">菜单6 </a>
<ul>
<li> <a href="#">菜单6_1 </a> </li>
</ul>
</li>
</ul>
</body>
</html>
<!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>
<title>简洁的横向二级下拉导航菜单 </title>
<meta http-equiv="content-type" content="text/html;charset=gb2312">
<!--把下面代码加到 <head>与 </head>之间-->
<style type="text/css">
<!--
* {margin:0;padding:0;border:0;}
body { font-family: arial, 宋体, serif;font-size:12px;}
#nav { height: 24px; list-style-type: none; padding-left:200px;line-height:24px;overflow:hidden;background:#999;}
#nav a {display: block; width: 80px; text-align:center;}
#nav a:link { color:#EEE; text-decoration:none;}
#nav a:visited {color:#EEE;text-decoration:none;}
#nav a:hover {color:#FFF;text-decoration:none;font-weight:bold;background:#CCC;}
#nav li { float: left; width: 80px;}
#nav li ul {line-height: 24px; list-style-type: none;text-align:left;left: -999px; width: 510px; position: absolute;background:#CCC;}
#nav li ul li{float: left;width: 80px;}
#nav li ul a{display: block; width: 65px;text-align:left;padding-left:15px;}
#nav li ul a:link { color:#F1F1F1; text-decoration:none;}
#nav li ul a:visited {color:#F1F1F1;text-decoration:none;}
#nav li ul a:hover {color:#FFF;text-decoration:none;font-weight:normal;background:#C00;}
#nav li:hover ul {left:25%;}
#nav li.sfhover ul { left:25%;}
#content {clear: left;}
-->
</style>
<script type=text/javascript>
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function showMenu(_obj){
var x=_obj.offsetLeft;
W=_obj.offsetWidth
w=_obj.getElementsByTagName("ul")[0].offsetWidth
_obj.getElementsByTagName("ul")[0].style.left=x+W/2-w/2+20
}
function menuFix() {
var sfEls = document.getElementById("nav").getElementsByTagName("li");
for (var i=0; i <sfEls.length; i++) {
if (sfEls[i].parentNode.id=="nav"){
sfEls[i].onmouseover=function() {showMenu(this)}
sfEls[i].onMouseDown=function() {showMenu(this)}
sfEls[i].onMouseUp=function() {showMenu(this)}
sfEls[i].onmouseout=function() {this.className=this.getElementsByTagName("ul")[0].style.left="-999px";}
}
}
}
window.onload=menuFix;
//--> <!]]>
</script>
</head>
<body>
<!--把下面代码加到 <body>与 </body>之间-->
<ul id="nav">
<li> <a href="#">菜单1 </a>
<ul>
<li> <a href="#">菜单1_1 </a> </li>
<li> <a href="#">菜单1_2 </a> </li>
<li> <a href="#">菜单1_3 </a> </li>
<li> <a href="#">菜单1_4 </a> </li>
<li> <a href="#">菜单1_5 </a> </li>
<li> <a href="#">菜单1_6 </a> </li>
</ul>
</li>
<li> <a href="#">菜单2 </a>
<ul>
<li> <a href="#">菜单2_1 </a> </li>
<li> <a href="#">菜单2_2 </a> </li>
<li> <a href="#">菜单2_3 </a> </li>
<li> <a href="#">菜单2_4 </a> </li>
<li> <a href="#">菜单2_5 </a> </li>
</ul>
</li>
<li> <a href="#">菜单3 </a>
<ul>
<li> <a href="#">菜单3_1 </a> </li>
<li> <a href="#">菜单3_2 </a> </li>
<li> <a href="#">菜单3_3 </a> </li>
<li> <a href="#">菜单3_4 </a> </li>
</ul>
</li>
<li> <a href="#">菜单4 </a>
<ul>
<li> <a href="#">菜单4_1 </a> </li>
<li> <a href="#">菜单4_2 </a> </li>
<li> <a href="#">菜单4_3 </a> </li>
</ul>
</li>
<li> <a href="#">菜单5 </a>
<ul>
<li> <a href="#">菜单5_1 </a> </li>
<li> <a href="#">菜单5_2 </a> </li>
</ul>
</li>
<li> <a href="#">菜单6 </a>
<ul>
<li> <a href="#">菜单6_1 </a> </li>
</ul>
</li>
</ul>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>简洁的横向二级下拉导航菜单 </title>
<meta http-equiv="content-type" content="text/html;charset=gb2312">
<!--把下面代码加到 <head>与 </head>之间-->
<style type="text/css">
<!--
* {margin:0;padding:0;border:0;}
body { font-family: arial, 宋体, serif;font-size:12px;}
#nav { height: 24px; list-style-type: none; padding-left:200px;line-height:24px;overflow:hidden;background:#999;}
#nav a {display: block; width: 80px; text-align:center;}
#nav a:link { color:#EEE; text-decoration:none;}
#nav a:visited {color:#EEE;text-decoration:none;}
#nav a:hover {color:#FFF;text-decoration:none;font-weight:bold;background:#CCC;}
#nav li { float: left; width: 80px;}
#nav li ul {line-height: 24px; list-style-type: none;text-align:left;left: -999px; width: 510px; position: absolute;background:#CCC;}
#nav li ul li{float: left;width: 80px;}
#nav li ul a{display: block; width: 65px;text-align:left;padding-left:15px;}
#nav li ul a:link { color:#F1F1F1; text-decoration:none;}
#nav li ul a:visited {color:#F1F1F1;text-decoration:none;}
#nav li ul a:hover {color:#FFF;text-decoration:none;font-weight:normal;background:#C00;}
#nav li:hover ul {left:25%;}
#nav li.sfhover ul { left:25%;}
#content {clear: left;}
-->
</style>
<script type=text/javascript>
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var old=null;
function showMenu(_obj){
if(old)
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w=_obj.getElementsByTagName("ul")[0].offsetWidth
_obj.getElementsByTagName("ul")[0].style.left=x+W/2-w/2+20
}
function menuFix() {
var sfEls = document.getElementById("nav").getElementsByTagName("li");
for (var i=0; i <sfEls.length; i++) {
if (sfEls[i].parentNode.id=="nav"){
sfEls[i].onmouseover=function() {showMenu(this)}
sfEls[i].onMouseDown=function() {showMenu(this)}
sfEls[i].onMouseUp=function() {showMenu(this)}
sfEls[i].onmouseout=function() {old=this;}
}
}
}
window.onload=menuFix;
//--> <!]]>
</script>
</head>
<body>
<!--把下面代码加到 <body>与 </body>之间-->
<ul id="nav">
<li> <a href="#">菜单1 </a>
<ul>
<li> <a href="#">菜单1_1 </a> </li>
<li> <a href="#">菜单1_2 </a> </li>
<li> <a href="#">菜单1_3 </a> </li>
<li> <a href="#">菜单1_4 </a> </li>
<li> <a href="#">菜单1_5 </a> </li>
<li> <a href="#">菜单1_6 </a> </li>
</ul>
</li>
<li> <a href="#">菜单2 </a>
<ul>
<li> <a href="#">菜单2_1 </a> </li>
<li> <a href="#">菜单2_2 </a> </li>
<li> <a href="#">菜单2_3 </a> </li>
<li> <a href="#">菜单2_4 </a> </li>
<li> <a href="#">菜单2_5 </a> </li>
</ul>
</li>
<li> <a href="#">菜单3 </a>
<ul>
<li> <a href="#">菜单3_1 </a> </li>
<li> <a href="#">菜单3_2 </a> </li>
<li> <a href="#">菜单3_3 </a> </li>
<li> <a href="#">菜单3_4 </a> </li>
</ul>
</li>
<li> <a href="#">菜单4 </a>
<ul>
<li> <a href="#">菜单4_1 </a> </li>
<li> <a href="#">菜单4_2 </a> </li>
<li> <a href="#">菜单4_3 </a> </li>
</ul>
</li>
<li> <a href="#">菜单5 </a>
<ul>
<li> <a href="#">菜单5_1 </a> </li>
<li> <a href="#">菜单5_2 </a> </li>
</ul>
</li>
<li> <a href="#">菜单6 </a>
<ul>
<li> <a href="#">菜单6_1 </a> </li>
</ul>
</li>
</ul>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>简洁的横向二级下拉导航菜单 </title>
<meta http-equiv="content-type" content="text/html;charset=gb2312">
<!--把下面代码加到 <head>与 </head>之间-->
<style type="text/css">
<!--
* {margin:0;padding:0;border:0;}
body { font-family: arial, 宋体, serif;font-size:12px;}
#nav { height: 24px; list-style-type: none; padding-left:200px;line-height:24px;overflow:hidden;background:#999;}
#nav a {display: block; width: 80px; text-align:center;}
#nav a:link { color:#EEE; text-decoration:none;}
#nav a:visited {color:#EEE;text-decoration:none;}
#nav a:hover {color:#FFF;text-decoration:none;font-weight:bold;background:#CCC;}
#nav li { float: left; width: 80px;}
#nav li ul {line-height: 24px; list-style-type: none;text-align:left;left: -999px; width: 510px; position: absolute;background:#CCC;}
#nav li ul li{float: left;width: 80px;}
#nav li ul a{display: block; width: 65px;text-align:left;padding-left:15px;}
#nav li ul a:link { color:#F1F1F1; text-decoration:none;}
#nav li ul a:visited {color:#F1F1F1;text-decoration:none;}
#nav li ul a:hover {color:#FFF;text-decoration:none;font-weight:normal;background:#C00;}
#nav li:hover ul {left:25%;}
#nav li.sfhover ul { left:25%;}
#content {clear: left;}
-->
</style>
<script type=text/javascript>
<!--//--> <![CDATA[//> <!--
function showMenu(_obj){
var x=_obj.offsetLeft;
W=_obj.offsetWidth
w=_obj.getElementsByTagName("ul")[0].offsetWidth
_obj.getElementsByTagName("ul")[0].style.left=x+W/2-w/2+20
}
function menuFix() {
var sfEls = document.getElementById("nav").getElementsByTagName("li");
for (var i=0; i <sfEls.length; i++) {
if (sfEls[i].parentNode.id=="nav"){
sfEls[i].onmouseover=function() {showMenu(this)}
sfEls[i].onMouseDown=function() {showMenu(this)}
sfEls[i].onMouseUp=function() {showMenu(this)}
}
}
}
window.onload=menuFix;
//--> <!]]>
</script>
</head>
<body>
<!--把下面代码加到 <body>与 </body>之间-->
<ul id="nav">
<li> <a href="#">菜单1 </a>
<ul>
<li> <a href="#">菜单1_1 </a> </li>
<li> <a href="#">菜单1_2 </a> </li>
<li> <a href="#">菜单1_3 </a> </li>
<li> <a href="#">菜单1_4 </a> </li>
<li> <a href="#">菜单1_5 </a> </li>
<li> <a href="#">菜单1_6 </a> </li>
</ul>
</li>
<li> <a href="#">菜单2 </a>
<ul>
<li> <a href="#">菜单2_1 </a> </li>
<li> <a href="#">菜单2_2 </a> </li>
<li> <a href="#">菜单2_3 </a> </li>
<li> <a href="#">菜单2_4 </a> </li>
<li> <a href="#">菜单2_5 </a> </li>
</ul>
</li>
<li> <a href="#">菜单3 </a>
<ul>
<li> <a href="#">菜单3_1 </a> </li>
<li> <a href="#">菜单3_2 </a> </li>
<li> <a href="#">菜单3_3 </a> </li>
<li> <a href="#">菜单3_4 </a> </li>
</ul>
</li>
<li> <a href="#">菜单4 </a>
<ul>
<li> <a href="#">菜单4_1 </a> </li>
<li> <a href="#">菜单4_2 </a> </li>
<li> <a href="#">菜单4_3 </a> </li>
</ul>
</li>
<li> <a href="#">菜单5 </a>
<ul>
<li> <a href="#">菜单5_1 </a> </li>
<li> <a href="#">菜单5_2 </a> </li>
</ul>
</li>
<li> <a href="#">菜单6 </a>
<ul>
<li> <a href="#">菜单6_1 </a> </li>
</ul>
</li>
</ul>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>flyout</title>
<style type="text/css">
/* common styling */
.menu {font-family: arial, sans-serif; width:106px; height:150px; position:relative; margin:0; font-size:11px; margin:50px 0;}
.menu ul li a, .menu ul li a:visited {display:block; text-decoration:none; color:#000;width:104px; height:20px; text-align:center; color:#fff; border:1px solid #aaa; background:#710069; line-height:20px; font-size:11px; overflow:hidden;}
.menu ul {padding:0; margin:0;list-style-type: none; }
.menu ul li {float:left; margin-right:1px; position:relative;}
.menu ul li ul {display: none;}
/* specific to non IE browsers */
.menu ul li:hover a {color:#fff; background:#36f;}
.menu ul li:hover ul {display:block; position:absolute; top:0; left:105px; width:105px;}
.menu ul li:hover ul li a.hide {background:#6a3; color:#fff;}
.menu ul li:hover ul li:hover a.hide {background:#6fc; color:#000;}
.menu ul li:hover ul li ul {display: none;}
.menu ul li:hover ul li a {display:block; background:#eee; color:#000;}
.menu ul li:hover ul li a:hover {background:#6fc; color:#000;}
.menu ul li:hover ul li:hover ul {display:block; position:absolute; left:105px; top:0;}
</style>
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<style type="text/css">
.menu ul li a.hide, .menu ul li a:visited.hide {display:none;}
.menu ul li a:hover ul li a.hide {display:none;}
.menu ul li a:hover {color:#fff; background:#36f;}
.menu ul li a:hover ul {display:block; position:absolute; top:0; left:105px; width:105px;}
.menu ul li a:hover ul li a.sub {background:#6a3; color:#fff;}
.menu ul li a:hover ul li a {display:block; background:#eee; color:#000;}
.menu ul li a:hover ul li a ul {visibility:hidden;}
.menu ul li a:hover ul li a:hover {background:#6fc; color:#000;}
.menu ul li a:hover ul li a:hover ul {visibility:visible; position:absolute; left:105px; top:0; color:#000;}
</style>
<![endif]-->
</head>
<body>
<div class="menu">
<ul>
<li><a class="hide" href="../menu/index.html">DEMOS</a>
<!--[if lte IE 6]>
<a href="../menu/index.html">DEMOS
<table><tr><td>
<![endif]-->
<ul>
<li><a href="../menu/zero_dollars.html" title="The zero dollar ads page">zero dollars</a></li>
<li><a href="../menu/embed.html" title="Wrapping text around images">wrapping text</a></li>
<li><a href="../menu/form.html" title="Styling forms">styled form</a></li>
<li><a href="../menu/nodots.html" title="Removing active/focus borders">active focus</a></li>
<li><a class="hide" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">HOVER/CLICK ></a>
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<a class="sub" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">HOVER/CLICK >
<table><tr><td>
<![endif]-->
<ul>
<li><a href="../menu/form.html" title="Styling forms">styled form</a></li>
<li><a href="../menu/nodots.html" title="Removing active/focus borders">active focus</a></li>
</ul>
<!--[if lte IE 6]>
</td></tr></table>
</a>
<![endif]-->
</li>
<li><a href="../menu/shadow_boxing.html" title="Multi-position drop shadow">shadow boxing</a></li>
<li><a href="../menu/old_master.html" title="Image Map for detailed information">image map</a></li>
<li><a href="../menu/bodies.html" title="fun with background images">fun backgrounds</a></li>
</ul>
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</td></tr></table>
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</li>
<li><a class="hide" href="index.html">MENUS</a>
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<a href="index.html">MENUS
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<ul>
<li><a href="expand.html" title="an enlarging unordered list">enlarging list</a></li>
<li><a href="enlarge.html" title="an unordered list with link images">link images</a></li>
<li><a href="cross.html" title="non-rectangular links">non-rectangular</a></li>
<li><a href="jigsaw.html" title="jigsaw links">jigsaw links</a></li>
<li><a href="circles.html" title="circular links">circular links</a></li>
</ul>
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</li>
<li><a class="hide" href="../layouts/index.html">LAYOUTS</a>
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<a href="../layouts/index.html">LAYOUTS
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<ul>
<li><a href="../layouts/body4.html" title="Cross browser fixed layout">Fixed 3</a></li>
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<ul>
<li><a href="spies.html" title="a coded list of spies">spies menu</a></li>
<li><a href="enlarge.html" title="an unordered list with link images">link images</a></li>
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<li><a href="circles.html" title="circular links">circular links</a></li>
</ul>
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</td></tr></table>
</a>
<![endif]-->
</li>
<li><a class="hide" href="../mozilla/index.html">MOZILLA</a>
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<a href="../mozilla/index.html">MOZILLA
<table><tr><td>
<![endif]-->
<ul>
<li><a href="#" title="Using content:">content:</a></li>
<li><a href="../" title=":hover applied to a div">mozzie box</a></li>
<li><a href="../mozilla/rainbow.html" title="I can build a rainbow">rainbow box</a></li>
<li><a href="../mozilla/shadow_text.html" title="Shadow text">shadow text</a></li>
</ul>
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</td></tr></table>
</a>
<![endif]-->
</li>
<li><a class="hide" href="/index.html">EXPLORER</a>
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<a href="../ie/index.html">EXPLORER
<table><tr><td>
<![endif]-->
<ul>
<li><a href="http://www.codefans.net" title="Example one">example one</a></li>
<li><a href="#" title="Weft fonts">weft fonts</a></li>
<li><a href="#" title="Vertical align">vertical align</a></li>
</ul>
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</td></tr></table>
</a>
<![endif]-->
</li>
<li><a class="hide" href="/index.html">OPACITY</a>
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<a href="../opacity/index.html">OPACITY
<table><tr><td>
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<ul>
<li><a href="http://www.codefans.net" title="colour wheel">opaque colours</a></li>
<li><a href="http://www.codefans.net" title="a menu using opacity">opaque menu</a></li>
<li><a href="#" title="partial opacity">partial opacity</a></li>
<li><a href="#" title="partial opacity II">partial opacity II</a></li>
</ul>
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</td></tr></table>
</a>
<![endif]-->
</li>
</ul>
</div>
</body>
</html>网上搜的。
把这句去掉不就不关闭了