日期:2014-05-16  浏览次数:20509 次

隐藏li
现在与我想象中有点出入求帮手修改下(理想中:<li>里面内容是隐藏的,当鼠标移动到导航条才会弹出。)
<!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=utf-8" />
<title>无标题文档</title>
<style type="text/css">
#body{margin:0px;}
#char{
background-color:#66FF66;
  width:811px;
  height:570px;
  margin:auto;
}
#head {
  width:811px;
  height:67px;
}
#head_a {
  background-image:url(images/1_02.gif.gif);
  width:209px;
  height:67px;
}
#head_b {
background-color:#FFFFFF;
  float:right;
  width:602px;
  height:67px;
  margin-top:-67px;
}
#tit{
width:100%;
height:25px;
line-height:25px;
}
#tit h3{
margin:0px;
padding:0px;
width:88px;
background:#ccc;
float:left;
line-height:25px;
text-align:center;
border:1px solid white;
font-size:12px;
color:white;
}
#content{
width:100%;
height:175px;
background:#888;
}
#content div{
display:none;
}
#content .one{
display:block;
}
#tit .titin{
border:2px solid #888;
background:#888;
}
</style>
</head>
<body>
<div id="char">
<div id="head">
<div id="head_a"></div>
<div id="head_b"></div>
</div>
<div id="tit">
<h3 onmouseover="show(0)" class="titin">首页</h3>
<h3 onmouseover="show(1)">关于我们</h3>
<h3 onmouseover="show(2)">新闻中心</h3>
<h3 onmouseover="show(3)">产品中心</h3>
</div>
<div id="content">
<div class="one">
<ul>
<li>aaas</li>
<li>aaag</li>
<li>aaasg</li>
<li>aaaaa</li>
<li>aaaaa</li>
</ul>
</div>
<div>
<ul>
<li>bbbbb</li>
<li>bbbbbbb</li>
</ul>
</div>
<div>
<ul>
<li>cccc</li>
</ul>
</div>
<div>
<ul>
<li>cccc</li>
</ul>
</div>

</div>

</div>
<script>
var h3os=document.getElementsByTagName("h3");
var cdivs=document.getElementById("content").getElementsByTagName("div");

function show(num){
for(var i=0; i<h3os.length; i++){
if(i==num){
h3os[num].className="titin";
cdivs[num].style.display="block"
}else{
h3os[i].className="";
cdivs[i].style.display="none";
 
}

}

}
</script>
</body>
</html>

------解决方案------------