怎么实现选项卡自动切换

如何实现选项卡自动切换


如上图，如何实现选项卡的自动切换，比如：第一个界面是在俊采深度，3秒钟后希望自动变为“行业新闻，以此类推”

<ul id="gai-tab" class="news-nav">
<li class="first active">
<label>俊采深度</label><a href="{PE.Label id="取得节点链接路径" nodeId="37" /}" class="more" title="俊采深度"></a>
<ul class="cont1">

{PE.Label id="shouyexinwen" nodeids="37" len="90" ts="5" /}



</ul>
</li>
<li>
<label>行业新闻</label><a href="{PE.Label id="取得节点链接路径" nodeId="38" /}" class="more" title="行业新闻"></a>
<ul class="cont1">

{PE.Label id="shouyexinwen" nodeids="38" len="90" ts="5" /}

</ul>
</li>
<li>
<label>俊采公告</label><a href="{PE.Label id="取得节点链接路径" nodeId="39" /}" class="more" title="俊采公告"></a>
<ul class="cont1">

{PE.Label id="shouyexinwen" nodeids="39" len="90" ts="5" /}
</ul>
</li>
<li>
<label>解决方案</label><a href="{PE.Label id="取得节点链接路径" nodeId="40" /}" class="more" title="解决方案"></a>
<ul class="cont1">

{PE.Label id="shouyexinwen" nodeids="40" len="90" ts="5" /}


</ul>
</li>
                    
                    <li>
<label>HR专区</label><a href="{PE.Label id="取得节点链接路径" nodeId="41" /}" class="more" title="HR专区"></a>
<ul class="cont1">

{PE.Label id="shouyexinwen" nodeids="41" len="90" ts="5" /}





</ul>
</li>
                    
                    
                             <li>
<label>人才服务</label><a href="{PE.Label id="取得节点链接路径" nodeId="42" /}" class="more" title="人才服务"></a>
<ul class="cont1">
{PE.Label id="shouyexinwen" nodeids="42" len="90" ts="5" /}

</ul>
</li>
                    
</ul>
</div>
<div class="gaibottom"></div>
</div>  

求给出详细的js代码,我想直接插入到html代码中。谢谢！ 选项卡自动切换
[解决办法]

var items=[elm1,elm2,elm3];
var now = 0;
var len = items.length;
function change(){
var pass = now;
if(now == len){
now = 0;
}else{
now = now+1;
}
removeClass(items[pass],'active');
addClass(items[now],'active');
}
var time = setinterval(change,3000);

[解决办法]
最笨的方法 
给标签执行click()
[解决办法]

引用:

var items=[elm1,elm2,elm3];
var now = 0;
var len = items.length;
function change(){
var pass = now;
if(now == len){
now = 0;
}else{
now = now+1;
}
removeClass(items[pass],'active');
addClass(items[now],'active');
}
var time = setinterval(change,3000);

不错，这段代码如何更好的和当点击某一选项卡时结合呢？ 谢谢
[解决办法]

<ul id="gai-tab" class="news-nav">
                    <li class="first active"> 
 
                        <label>俊采深度</label><a href="{PE.Label id="取得节点链接路径" nodeId="37" /}" class="more" title="俊采深度"></a>
                        <ul class="cont1">
                             
{PE.Label id="shouyexinwen" nodeids="37" len="90" ts="5" /}
                             
 
                             
                        </ul>
                    </li>
                    <li>
                        <label>行业新闻</label><a href="{PE.Label id="取得节点链接路径" nodeId="38" /}" class="more" title="行业新闻"></a>
                        <ul class="cont1">
                             
{PE.Label id="shouyexinwen" nodeids="38" len="90" ts="5" /}               
                             
                        </ul>
                    </li>
                    <li>
                        <label>俊采公告</label><a href="{PE.Label id="取得节点链接路径" nodeId="39" /}" class="more" title="俊采公告"></a>
                        <ul class="cont1">
                             
{PE.Label id="shouyexinwen" nodeids="39" len="90" ts="5" /}
                        </ul>
                    </li>
                    <li>
                        <label>解决方案</label><a href="{PE.Label id="取得节点链接路径" nodeId="40" /}" class="more" title="解决方案"></a>
                        <ul class="cont1">
                             
                {PE.Label id="shouyexinwen" nodeids="40" len="90" ts="5" /}   
 
                             
                        </ul>
                    </li>
                     
                        <li>
                        <label>HR专区</label><a href="{PE.Label id="取得节点链接路径" nodeId="41" /}" class="more" title="HR专区"></a> 
 
                        <ul class="cont1">
                             
                        {PE.Label id="shouyexinwen" nodeids="41" len="90" ts="5" /}
                             
                             
                             
 
                             
                        </ul>
                    </li>
                     
                     
                                 <li>
                        <label>人才服务</label><a href="{PE.Label id="取得节点链接路径" nodeId="42" /}" class="more" title="人才服务"></a>
                        <ul class="cont1">
                    {PE.Label id="shouyexinwen" nodeids="42" len="90" ts="5" /}
                             
                        </ul>
                    </li>
                     
                </ul>
<script>
    var lis = [], uls = document.getElementById('gai-tab').getElementsByTagName('ul'),nowIndex=0;
    for (var i = 0; i < uls.length; i++) { lis[i] = uls[i].parentNode; uls[i].style.display = i == 0 ? 'block' : 'none'; }
    lis[0].className = 'first active';
    setInterval(function () {
        nowIndex++;
        if (nowIndex >= uls.length) nowIndex = 0;
        for (var i = 0; i < uls.length; i++) {
            lis[i].className = i == nowIndex ? 'first active' : '';
            uls[i].style.display = i == nowIndex ? 'block' : 'none';
        }
    }, 3000);
</script>

[解决办法]

<ul id="gai-tab" class="news-nav">
                    <li class="first active">
                        <label>俊采深度</label><a href="{PE.Label id="取得节点链接路径" nodeId="37" /}" class="more" title="俊采深度"></a>
                        <ul class="cont1">
                              
{PE.Label id="shouyexinwen" nodeids="37" len="90" ts="5" /}
                               
 
  
                              
                        </ul>
                    </li>
                    <li>
                        <label>行业新闻</label><a href="{PE.Label id="取得节点链接路径" nodeId="38" /}" class="more" title="行业新闻"></a>
                        <ul class="cont1">
                              
{PE.Label id="shouyexinwen" nodeids="38" len="90" ts="5" /}               
                              
                        </ul>
                    </li>
                    <li>
                        <label>俊采公告</label><a href="{PE.Label id="取得节点链接路径" nodeId="39" /}" class="more" title="俊采公告"></a>
                        <ul class="cont1">
                              
{PE.Label id="shouyexinwen" nodeids="39" len="90" ts="5" /}
                        </ul>
                    </li>
                    <li>
                        <label>解决方案</label><a href="{PE.Label id="取得节点链接路径" nodeId="40" /}" class="more" title="解决方案"></a>
                        <ul class="cont1">
                              
                {PE.Label id="shouyexinwen" nodeids="40" len="90" ts="5" /}   
  
                              
                        </ul>
                    </li>
                      
                        <li>
                        <label>HR专区</label><a href="{PE.Label id="取得节点链接路径" nodeId="41" /}" class="more" title="HR专区"></a>
                        <ul class="cont1">
                              
                        {PE.Label id="shouyexinwen" nodeids="41" len="90" ts="5" /}
                              
                               
 
                              
  
                              
                        </ul>
                    </li>
                      
                      
                                 <li>
                        <label>人才服务</label><a href="{PE.Label id="取得节点链接路径" nodeId="42" /}" class="more" title="人才服务"></a>
                        <ul class="cont1">
                    {PE.Label id="shouyexinwen" nodeids="42" len="90" ts="5" /}
                              
                        </ul>
                    </li>
                      
                </ul>
<script>
function contains(t,o){
  if(t==o)return true;
  while(o=o.parentNode)if(o==t)return true;
  return false;
}
    var lis = [], uls = document.getElementById('gai-tab').getElementsByTagName('ul'),nowIndex=0;
    for (var i = 0; i < uls.length; i++) { lis[i] = uls[i].parentNode; uls[i].style.display = i == 0 ? 'block' : 'none'; 
lis[i].onmouseover=lis[i].onmouseout=function(e){
if(this.className.indexOf('active')==-1)return false
e=e
[解决办法]
window.event;
if(e.type=='mouseover')clearInterval(timer);
else{
  var o=e.toElement
[解决办法]
e.ralatedTarget;
  if(contains(this,o))return false;
  timer=   setInterval(chr, 3000);
}
}

}
function chr() {
        nowIndex++;
        if (nowIndex >= uls.length) nowIndex = 0;
        for (var i = 0; i < uls.length; i++) {
            lis[i].className = i == nowIndex ? 'first active' : '';
            uls[i].style.display = i == nowIndex ? 'block' : 'none';
        }
    }
    lis[0].className = 'first active';
 var timer=   setInterval(chr, 3000);
</script>

[解决办法]
http://blog.csdn.net/hch126163/article/details/6050485
[解决办法]

<ul id="gai-tab" class="news-nav">
                    <li class="first active">
                        <label>俊采深度</label><a href="{PE.Label id="取得节点链接路径" nodeId="37" /}" class="more" title="俊采深度"></a>
                        <ul class="cont1">
                               
{PE.Label id="shouyexinwen" nodeids="37" len="90" ts="5" /}
                                
 
   
                               
                        </ul>
                    </li>
                    <li>
                        <label>行业新闻</label><a href="{PE.Label id="取得节点链接路径" nodeId="38" /}" class="more" title="行业新闻"></a>
                        <ul class="cont1">
                               
{PE.Label id="shouyexinwen" nodeids="38" len="90" ts="5" /}               
                               
                        </ul>
                    </li>
                    <li>
                        <label>俊采公告</label><a href="{PE.Label id="取得节点链接路径" nodeId="39" /}" class="more" title="俊采公告"></a>
                        <ul class="cont1">
                               
{PE.Label id="shouyexinwen" nodeids="39" len="90" ts="5" /}
                        </ul>
                    </li>
                    <li>
                        <label>解决方案</label><a href="{PE.Label id="取得节点链接路径" nodeId="40" /}" class="more" title="解决方案"></a>
                        <ul class="cont1">
                               
                {PE.Label id="shouyexinwen" nodeids="40" len="90" ts="5" /}   
   
                               
                        </ul>
                    </li>
                       
                        <li>
                        <label>HR专区</label><a href="{PE.Label id="取得节点链接路径" nodeId="41" /}" class="more" title="HR专区"></a>
                        <ul class="cont1">
                               
                        {PE.Label id="shouyexinwen" nodeids="41" len="90" ts="5" /}
                                
 
                               
                               
   
                               
                        </ul>
                    </li>
                       
                       
                                 <li>
                        <label>人才服务</label><a href="{PE.Label id="取得节点链接路径" nodeId="42" /}" class="more" title="人才服务"></a>
                        <ul class="cont1">
                    {PE.Label id="shouyexinwen" nodeids="42" len="90" ts="5" /}
                               
                        </ul>
                    </li>
                       
                </ul>
<script>
    function contains(t, o) {
        if (t == o) return true;
        while (o = o.parentNode) if (o == t) return true;
        return false;
    }
    var lis = [], ulTab = document.getElementById('gai-tab'), uls = ulTab.getElementsByTagName('ul'), nowIndex = 0;
    for (var i = 0; i < uls.length; i++) {
        lis[i] = uls[i].parentNode; 
        uls[i].style.display = i == 0 ? 'block' : 'none';

        lis[i].onmouseover = lis[i].onmouseout = (function (index) {
            return function (e) {
                //if (this.className.indexOf('active') == -1) return false
                e = e 
[解决办法]
 window.event;
                if (e.type == 'mouseover') {
                    clearInterval(timer);
                    chr(index);
                }
                else {
                    var o = e.toElement 
[解决办法]
 e.relatedTarget;
                    if (contains(ulTab, o)) return false;
                    timer = setInterval(function () { chr() }, 3000);
                }
            }
        })(i);

    }
    function chr(index) { 
 
        if (index == undefined) nowIndex++;
        else nowIndex = index;
        if (nowIndex >= uls.length) nowIndex = 0;
        for (var i = 0; i < uls.length; i++) {
            lis[i].className = i == nowIndex ? 'first active' : '';
            uls[i].style.display = i == nowIndex ? 'block' : 'none';
        }
    }
    lis[0].className = 'first active';
    var timer = setInterval(function () { chr() }, 3000);
</script>

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