JS简单实现tab切换效果的多窗口显示功能

本文实例讲述了JS简单实现tab切换效果的多窗口显示功能。分享给大家供大家参考，具体如下：

<div style=" text-align:center; margin-top:40px;">
  <div class="menubox">
    <span id="newstab1" class="hover" onmouseover="setTab('newstab',1,3)"> <a href="###" target="_blank">科室新闻</a></span>
    <span id="newstab2" onmouseover="setTab('newstab',2,3)"> <a href="###" target="_blank">媒体报道</a></span>
    <span id="newstab3" onmouseover="setTab('newstab',3,3)"> <a href="###" target="_blank">学术研究</a></span>
  </div>
  <div class="contentbox">
    <div id="con_newstab_1">
      <ul>
        <li><span>2015-09-09</span><a href="###" target="_blank">阅谁问君诵水落清香浮1</a></li>
        <li><span>2015-08-17</span><a href="###" target="_blank">阅谁问君诵水落清香浮1</a></li>
        <li><span>2015-08-05</span><a href="###" target="_blank">阅谁问君诵水落清香浮1</a></li>
      </ul>
    </div>
    <div id="con_newstab_2" style="display:none;">
      <ul>
        <li><span>2015-09-09</span><a href="###" target="_blank">阅谁问君诵水落清香浮2</a></li>
        <li><span>2015-08-17</span><a href="###" target="_blank">阅谁问君诵水落清香浮2</a></li>
        <li><span>2015-08-05</span><a href="###" target="_blank">阅谁问君诵水落清香浮2</a></li>
      </ul>
    </div>
    <div id="con_newstab_3" style="display:none;">
      <ul>
        <li><span>2015-09-09</span><a href="###" target="_blank">阅谁问君诵水落清香浮3</a></li>
        <li><span>2015-08-17</span><a href="###" target="_blank">阅谁问君诵水落清香浮3</a></li>
        <li><span>2015-08-05</span><a href="###" target="_blank">阅谁问君诵水落清香浮3</a></li>
      </ul>
    </div>
  </div>
</div>
<script type="text/javascript">
function setTab(name,cursel,n){
  for(i=1;i<=n;i++){
  var menu=document.getElementById(name+i);
  var con=document.getElementById("con_"+name+"_"+i);
  menu.className=i==cursel?"hover":"";
  con.style.display=i==cursel?"block":"none";
  }
}
</script>

效果图：

希望本文所述对大家JavaScript程序设计有所帮助。