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

  

复制代码 代码如下:

  <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(http://www.glzy8.com/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="http://www.glzy8.com" target=_self>管理资源吧</A><BR>

  <A href="http://play.glzy8.com" target=_self>播放器之家</A><BR>

  <A href="http://mingzi.glzy8.com" target=_self>个性名字网</A><BR>

  <A href="http://office.glzy8.com" target=_self>Office之家</A><BR>

  <A href="http://sc.glzy8.com" target=_self>素材之家</A><BR>

  <A href="http://yueduqi.glzy8.com" target=_self>阅读器之家</A><BR>

  <div align="right"><A href="http://www.glzy8.com" target=_self>...more</A></div>

  </SPAN>

  <SPAN>

  <A href="http://www.glzy8.com" target=_self>管理资源吧</A><BR>

  <A href="http://play.glzy8.com" target=_self>播放器之家</A><BR>

  <A href="http://mingzi.glzy8.com" target=_self>个性名字网</A><BR>

  <A href="http://office.glzy8.com" target=_self>Office之家</A><BR>

  <A href="http://sc.glzy8.com" target=_self>素材之家</A><BR>

  <A href="http://yueduqi.glzy8.com" target=_self>阅读器之家</A><BR>

  <div align="right"><A href="http://www.glzy8.com" target=_self>...more</A></div>

  </SPAN>

  <SPAN>

  <A href="http://www.glzy8.com" target=_self>管理资源吧</A><BR>

  <A href="http://play.glzy8.com" target=_self>播放器之家</A><BR>

  <A href="http://mingzi.glzy8.com" target=_self>个性名字网</A><BR>

  <A href="http://office.glzy8.com" target=_self>Office之家</A><BR>

  <A href="http://sc.glzy8.com" target=_self>素材之家</A><BR>

  <A href="http://yueduqi.glzy8.com" target=_self>阅读器之家</A><BR>

  <div align="right"><A href="http://www.glzy8.com" target=_self>...more</A></div>

  </SPAN>

  <SPAN>

  <A href="http://www.glzy8.com" target=_self>管理资源吧</A><BR>

  <A href="http://play.glzy8.com" target=_self>播放器之家</A><BR>

  <A href="http://mingzi.glzy8.com" target=_self>个性名字网</A><BR>

  <A href="http://office.glzy8.com" target=_self>Office之家</A><BR>

  <A href="http://sc.glzy8.com" target=_self>素材之家</A><BR>

  <A href="http://yueduqi.glzy8.com" target=_self>阅读器之家</A><BR>

  <div align="right"><A href="http://www.glzy8.com" 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>