JS实现切换标签页效果实例代码

在网页<head>区添加以下代码

<style type="text/css">  
<!--  
BODY {  
PADDING-RIGHT: 0px; PADDING-LEFT: 0px; FONT-SIZE: 12px; PADDING-BOTTOM: 0px; MARGIN: 0px auto; COLOR: black; LINE-HEIGHT: 150%; PADDING-TOP: 10px; BACKGROUND-COLOR: white; TEXT-ALIGN: center  
}  
.dis {  
DISPLAY: block  
}  
.undis {  
DISPLAY: none  
}  
#cntR {  
WIDTH: 302px  
}  
#NewsTop {  
CLEAR: both; MARGIN-BOTTOM: 16px  
}  
#NewsTop P {  
FLOAT: left; LINE-HEIGHT: 21px  
}  
#NewsTop P.topTit {  
FONT-WEIGHT: bold; WIDTH: 117px  
}  
#NewsTop P.topC0 {  
BACKGROUND: #dcdcdc; BORDER-LEFT: #f2f2f2 1px solid; WIDTH: 40px; CURSOR: pointer  
}  
#NewsTop P.topC1 {  
BACKGROUND: #c2130e; BORDER-LEFT: #f2f2f2 1px solid; WIDTH: 40px; COLOR: #fff  
}  
#NewsTop #NewsTop_tit {  
BORDER-BOTTOM: #c2130e 3px solid; HEIGHT: 21px  
}  
#NewsTop #NewsTop_cnt {  
PADDING-LEFT: 32px; BACKGROUND: url(https://www..net/code/table/tab/o2007320133249.gif) no-repeat 12px 13px; LINE-HEIGHT: 26px; PADDING-TOP: 7px; HEIGHT: 260px; TEXT-ALIGN: left  
}  
#NewsTop #NewsTop_cnt A {  
COLOR: #666; TEXT-DECORATION: none  
}  
#NewsTop #NewsTop_cnt A:hover {  
COLOR: #c2130e; TEXT-DECORATION: underline  
}  
--> 
</style> 

在网页<body>区添加以下代码

复制代码代码如下:

<DIV id=cntR>  
<DIV id=NewsTop>  
<DIV id=NewsTop_tit>  
<P class=topTit>新闻排行</P>  
<P class=topC0>国内</P>  
<P class=topC0>国际</P>  
<P class=topC0>社会</P>  
<P class=topC0>网评</P>  
</DIV>  
<DIV id=NewsTop_cnt><SPAN title="Don't delete me"></SPAN>  
<SPAN>  
<A href="https://www..net" target=_self></A><BR>  
<A href="http://play..net" target=_self>播放器之家</A><BR>  
<A href="http://mingzi..net" target=_self>个性名字网</A><BR>  
<A href="http://office..net" target=_self>Office之家</A><BR>  
<A href="http://sc..net" target=_self>素材之家</A><BR>  
<A href="http://yueduqi..net" target=_self>阅读器之家</A><BR>  
<div align="right"><A href="https://www..net" target=_self>...more</A></div>  
</SPAN>  
<SPAN>  
<A href="https://www..net" target=_self></A><BR>  
<A href="http://play..net" target=_self>播放器之家</A><BR>  
<A href="http://mingzi..net" target=_self>个性名字网</A><BR>  
<A href="http://office..net" target=_self>Office之家</A><BR>  
<A href="http://sc..net" target=_self>素材之家</A><BR>  
<A href="http://yueduqi..net" target=_self>阅读器之家</A><BR>  
<div align="right"><A href="https://www..net" target=_self>...more</A></div>  
</SPAN>  
<SPAN>  
<A href="https://www..net" target=_self></A><BR>  
<A href="http://play..net" target=_self>播放器之家</A><BR>  
<A href="http://mingzi..net" target=_self>个性名字网</A><BR>  
<A href="http://office..net" target=_self>Office之家</A><BR>  
<A href="http://sc..net" target=_self>素材之家</A><BR>  
<A href="http://yueduqi..net" target=_self>阅读器之家</A><BR> 
<div align="right"><A href="https://www..net" target=_self>...more</A></div>  
</SPAN>  
<SPAN>  
<A href="https://www..net" target=_self></A><BR>  
<A href="http://play..net" target=_self>播放器之家</A><BR>  
<A href="http://mingzi..net" target=_self>个性名字网</A><BR>  
<A href="http://office..net" target=_self>Office之家</A><BR>  
<A href="http://sc..net" target=_self>素材之家</A><BR>  
<A href="http://yueduqi..net" target=_self>阅读器之家</A><BR> 
<div align="right"><A href="https://www..net" target=_self>...more</A></div>  
</SPAN>  
</DIV>  
<SCRIPT>  
var Tags=document.getElementById('NewsTop_tit').getElementsByTagName('p');  
var TagsCnt=document.getElementById('NewsTop_cnt').getElementsByTagName('span');  
var len=Tags.length;  
var flag=1;//修改默认值  
for(i=1;i<len;i++){  
Tags[i].value = i;  
Tags[i].onmouseover=function(){changeNav(this.value)};  
TagsCnt[i].className='undis';  
}  
Tags[flag].className='topC1';  
TagsCnt[flag].className='dis';  
function changeNav(v){  
Tags[flag].className='topC0';  
TagsCnt[flag].className='undis';  
flag=v;  
Tags[v].className='topC1';  
TagsCnt[v].className='dis';  
}  
</SCRIPT>  
</DIV>  
</DIV> 

JS实现切换标签页效果实例代码

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