1、创建页签，以及页签内容的div。
2、编写被选中的页签和页签内容div显示、隐藏的样式。
3、编写js方法，根据被选中的页签，显示相应的页签内容。
例如：
<!doctype html>
<html lang="zh-cn">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript">
function doClick(o){
//当前被中的对象设置css
o.className="nav_current";
var j;
var id;
var e;
//遍历所有的页签，没有被选中的设置其没有被选中的css
for(var i=1;i<=7;i++){ //i<7 多少个栏目就填多大值
id ="nav"+i;
j = document.getElementById(id);
e = document.getElementById("sub"+i);
if(id != o.id){
j.className="nav_link";
e.style.display = "none";
}else{
e.style.display = "block";
}
}
}
</script>
<style type="text/css" media="screen">
body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, button, textarea, p, blockquote, th, td { margin:0; padding:0 }
fieldset, img { border:0 none }
:focus { outline:0 }
.dis{display:block;}
.undis{display:none;}
ol, ul { list-style:none }
.fr { display:inline; float:right!important }
.fl { display:inline; float:left!important }
.show { display:block }
.hide { display:none }
.highlight { color:#F30!important }
.important { font-weight:bold!important }
.center { text-align:center!important }
body { font:12px/1.5 tahoma, sans-serif; color:#333 }
a { text-decoration:none; color:#333 }
a:hover { text-decoration:underline; color:#E30751 }
.nav_current{ float:left;background:#FFF; color:#F00; }
.nav_link{ float:left;}
.nav_current:hover ,.nav_link:hover{ color:#FF6600;}
#dww-menu { width:978px; overflow:hidden; border:1px #dcdcdc solid; }
#dww-menu .mod-hd { overflow:hidden; height:30px; line-height:30px; position:relative; background:#CCCCCC repeat-x 0 0 }
#dww-menu .mod-hd li { float:left; cursor:pointer; text-align:center; height:30px; line-height:30px; padding:0 10px; letter-spacing:1px; text-transform:uppercase; border-right:1px #dcdcdc solid }
#dww-menu .mod-hd li.hover { font-weight:900; background:#FFF }
#dww-menu .mod-bd { padding:5px 10px }
#dww-menu .mod-bd div {color:#BFBFBF; line-height:24px }
#dww-menu .mod-bd div.show { display:block }
#dww-menu .mod-bd div a { display:inline-block; padding:0 4px }
</style>
<base target="_blank" />
</head>
<body>
<div >
<div id="dww-menu">
<div>
<ul>
<li id="nav1" onMouseOver="javascript:doClick(this)">标签1</li>
<li id="nav2" onMouseOver="javascript:doClick(this)">标签2</li>
<li id="nav3" onMouseOver="javascript:doClick(this)">标签3</li>
<li id="nav4" onMouseOver="javascript:doClick(this)">标签4</li>
<li id="nav5" onMouseOver="javascript:doClick(this)">标签5</li>
<li id="nav6" onMouseOver="javascript:doClick(this)">标签6</li>
<li id="nav7" onMouseOver="javascript:doClick(this)">标签7</li>
</ul>
</div>
<div>
<div id="sub1">
标签内容1
</div>
<div id="sub2">
标签内容2
</div>
<div id="sub3">
标签内容3
</div>
<div id="sub4">
标签内容4
</div>
<div id="sub5">
标签内容5
</div>
<div id="sub6">
标签内容6
</div>
<div id="sub7">
标签内容7
</div>
</div>
</div>
</div>
</body>
</html>
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