代码如下：
<!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>用户信息-tabs标签切换-www.jb200.com</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="css/ask.css" />
</head>
<body>
<div class="userinfo">
<div class="title" id="title">
<a href="#" class="default" onclick="selectObj(this)" id="grzl">个人资料</a> <a href="#"
class="current" id="xgmm" onclick="selectObj(this)">修改密码</a> <a href="#" class="default"
id="xgtx" onclick="selectObj(this)">修改头像</a>
</div>
<div class="content">
<table cellpadding="0" cellspacing="3" border="0">
<tr>
<td align="right">
<b>用户名：</b>
</td>
<td>
Admin
</td>
</tr>
<tr>
<td align="right">
<b>当前密码：</b>
</td>
<td>
<input type="text" />
</td>
</tr>
<tr>
<td align="right">
<b>新密码：</b>
</td>
<td>
<input type="text" />
</td>
</tr>
<tr>
<td align="right">
<b>确认密码：</b>
</td>
<td>
<input type="text" />
</td>
</tr>
<tr>
<td>
</td>
<td>
<input type="submit" value=" " class="btnok" />
</td>
</tr>
</table>
</div>
</div>
<script type="text/javascript">
function selectObj(obj) {
var objArray = document.getElementById("title").getElementsByTagName("a"); //得到title 下 所有 a 对象 为数组
var count = objArray.length; //得到数组selects长度
for (var i = 0; i < count; i++) { //将所有选项都置为不选中
objArray[i].className = "default";
}
obj.className = "current"; //选中当前项
}
</script>
</body>
</html>