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<!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>导航</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<style>
.nav{
width: 406px;
height: 75px;
margin: 220px auto 0px;
padding:0px;
}
.nav li{
float: left;
width: 54px;
margin: 0px 27px 0px 0px;
padding:0px;
list-style-type: none;
}
.nav li a{
display: block;
text-decoration: none;
text-align: center;
padding: 50px 0px 10px 0px;
}
/* ===== 字体颜色 ===== */
.nav .home a{color: #990000;}
.nav .f1 a{color: #FF0000;}
.nav .f2 a{color: #0000FF;}
.nav .f3 a{color: #FF9966;}
.nav .f4 a{color: #9966FF;}
/* ===== 鼠标移上去的颜色 =====*/
.nav .home a:hover,.nav .home a.focus{/*--多增加一个焦点样式,和hover效果一样,下面的同理---*/
color: #FFFFFF;
background-color: #990000;
}
.nav .f1 a:hover,.nav .f1 a.focus{
color: #FFFFFF;
background-color: #FF0000;
}
.nav .f2 a:hover,.nav .f2 a.focus{
color: #FFFFFF;
background-color: #0000FF;
}
.nav .f3 a:hover,.nav .f3 a.focus{
color: #FFFFFF;
background-color: #FF9966;
}
.nav .f4 a:hover,.nav .f4 a.focus{
color: #FFFFFF;
background-color: #9966FF;
}
</style>
</head>
<body>
<ul class="nav" id="nav">
<li class="home"><a href="xx.html">首页</a></li>
<li class="f1"><a href="xx.html?tag=f1">分类1</a></li>
<li class="f2"><a href="xx.html?tag=f2">分类2</a></li>
<li class="f3"><a href="xx.html?tag=f3">分类3</a></li>
<li class="f4"><a href="xx.html?tag=f4">分类4</a></li>
</ul>
<script>
var search = location.search//////////
var as = document.getElementById('nav').getElementsByTagName('a');
if (search != '') {
for (var i = 0; i < as.length; i++)
if (as[i].href.indexOf(search) != -1) {//连接包含当前页面名称则设置获得焦点
as[i].className = 'focus'; break;
}
}
else as[0].className = 'focus'; //没有参数怎默认首页
</script>
</body>
</html>
<ul class="nav" id="nav">
<li class="home"><a href="http://localhost/">首页</a></li>
<li class="f1"><a target="_blank" href="http://localhost/?tag=f1">分类1</a></li>
<li class="f2"><a href="http://localhost/?tag=f2">分类2</a></li>
<li class="f3"><a href="http://localhost/?tag=f3">分类3</a></li>
<li class="f4"><a href="http://localhost/?tag=f4">分类4</a></li>
</ul>