支持自动切换的tab标签代码札记

html代码如下：

<!-- tab标签代码begin -->
<div class="tab1" id="tab1">
    <div class="menu">
        <ul>
            <li id="one1" onclick="setTab('one',1)">新闻</li>
            <li id="one2" onclick="setTab('one',2)">活动</li>
            <li id="one3" onclick="setTab('one',3)">公告</li>
        </ul>
    </div>
    <div class="menudiv">
        <div id="con_one_1">新闻新闻新闻新闻新闻</div>
        <div id="con_one_2" style="display:none;">活动活动活动活动活动</div>
        <div id="con_one_3" style="display:none;">公告公告公告公告公告</div>
    </div>
</div>
<!-- tab标签代码end -->

jquery代码如下：

<script>
function setTab(name,cursel){
    cursel_0=cursel;
    for(var i=1; i<=links_len; i++){
        var menu = document.getElementById(name+i);
        var menudiv = document.getElementById("con_"+name+"_"+i);
        if(i==cursel){
            menu.className="off";
            menudiv.style.display="block";
        }
        else{
            menu.className="";
            menudiv.style.display="none";
        }
    }
}
function Next(){                                                        
    cursel_0++;
    if (cursel_0>links_len)cursel_0=1
    setTab(name_0,cursel_0);
} 
var name_0='one';
var cursel_0=1;
var ScrollTime=3000;//循环周期，可任意更改（毫秒）
var links_len,iIntervalId;
onload=function(){
    var links = document.getElementById("tab1").getElementsByTagName('li')
    links_len=links.length;
    for(var i=0; i<links_len; i++){
        links[i].onmouseover=function(){
            clearInterval(iIntervalId);
            this.onmouseout=function(){
                iIntervalId = setInterval(Next,ScrollTime);;
            }
        }
    }
    document.getElementById("con_"+name_0+"_"+links_len).parentNode.onmouseover=function(){
        clearInterval(iIntervalId);
        this.onmouseout=function(){
            iIntervalId = setInterval(Next,ScrollTime);;
        }
    }
    setTab(name_0,cursel_0);
    iIntervalId = setInterval(Next,ScrollTime);
}
</script>