javascript 定时自动切换的选项卡Tab

这里要注意,用于产生changetabinterval的随机数，防止页面上tabpane过多，如果设置的changetabinterval都一样的话会产生整齐划一的切换的效果，不美观.

<title>自动切换tab选项卡</title> <style> .tab { font-family: verdana, helvetica, arial; font-size: 12px; position: relative; width: 100%; } .tab-border {border:1px solid;border-color: rgb(120,172,255);} .tab-head { background-color:rgb(234,242,255);; border:0px; height:23px; line-height:20px; position:relative; } .tab-head ul{ border:0px; height:23px; list-style:none; margin:0px; text-align:center; padding:0; position:absolute; } .tab-head li{ border: 1px solid; border-color: rgb(120,172,255); border-left: 0; border-bottom: 0; border-top: 0; cursor:pointer; color:#416aa3; float:left; display:block; height:22px;!important;height:20px; line-height:20px; padding: 2px 6px 0px 6px; margin-top: 2px; margin-right: -1px; text-overflow:ellipsis; white-space:nowrap; overflow:hidden; } .tab-head li.hover{ border: 1px solid rgb(120,172,255); border-bottom: 0; padding: 0px 6px 3px 6px; margin: 0px 1px 0px 0px; background: white; font-size: 13px; font-weight: bold; color: rgb(0,66,174); overflow:visible; } </style> <div id="rptopmain_right_middle_right"> <div id="divforumcast" style="padding:8px;height:200px"> <div class="rp_2equalcol"><a href="#">黑客零起点教程 chm</a></div> <div class="rp_2equalcol"><a href="#">可以加密及解密的vb屏幕键盘组件</a></div> <div class="rp_2equalcol"><a href="#">可以加密及解密的vb屏幕键盘组件</a></div> </div> <div id="divforumpanel" style="padding:8px;height:210px"> <div class="rp_2equalcol"><a href="#">delphi多文档几何图形绘制及编辑程序</a></div> <div class="rp_2equalcol"><a href="#">学acm算法题有用吗？</a></div> <div class="rp_2equalcol"><a href="#">黑客零起点教程 chm</a></div> <div class="rp_2equalcol"><a href="#">b实现主窗体控制副窗口的显示与隐藏</a></div> <div class="rp_2equalcol"><a href="#">delphi多文档几何图形绘制及编辑程序</a></div> </div> </div>

[ctrl+a 全选 注:如需引入外部js需刷新才能执行]