一个漂亮的js展开菜单效果-JS特效-爱易网页

一个漂亮的js展开菜单效果

日期：2014-05-18　浏览次数：20240 次

以下是程序代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>下拉效果</title>
<script type=text/javascript>
function $(d){
 return document.getElementById(d);
}
// set or get the current display style of the div
function dsp(d,v){
 if(v==undefined){
  return d.style.display;
 }else{
  d.style.display=v;
 }
}
// set or get the height of a div.
function sh(d,v){
 // if you are getting the height then display must be block to return the absolute height
 if(v==undefined){
  if(dsp(d)!='none'&& dsp(d)!=''){
   return d.offsetHeight;
  }
  viz = d.style.visibility;
  d.style.visibility = 'hidden';
  o = dsp(d);
  dsp(d,'block');
  r = parseInt(d.offsetHeight);
  dsp(d,o);
  d.style.visibility = viz;
  return r;
 }else{
  d.style.height=v;
 }
}
/*
* Variable 'S' defines the speed of the accordian
* Variable 'T' defines the refresh rate of the accordian
*/
s=7;
t=10;
//Collapse Timer is triggered as a setInterval to reduce the height of the div exponentially.
function ct(d){
 d = $(d);
 if(sh(d)>0){
  v = Math.round(sh(d)/d.s);
  v = (v<1) ? 1 :v ;
  v = (sh(d)-v);
  sh(d,v+'px');
  d.style.opacity = (v/d.maxh);
  d.style.filter= 'alpha(opacity='+(v*100/d.maxh)+');';
 }else{
  sh(d,0);
  dsp(d,'none');
  clearInterval(d.t);
 }
}
//Expand Timer is triggered as a setInterval to increase the height of the div exponentially.
function et(d){
 d = $(d);
 if(sh(d)<d.maxh){
  v = Math.round((d.maxh-sh(d))/d.s);
  v = (v<1) ? 1 :v ;
  v = (sh(d)+v);
  sh(d,v+'px');
  d.style.opacity = (v/d.maxh);
  d.style.filter= 'alpha(opacity='+(v*100/d.maxh)+');';
 }else{
  sh(d,d.maxh);
  clearInterval(d.t);
 }
}
// Collapse Initializer
function cl(d){
 if(dsp(d)=='block'){
  clearInterval(d.t);
  d.t=setInterval('ct("'+d.id+'")',t);
 }
}
//Expand Initializer
function ex(d){
 if(dsp(d)=='none'){
  dsp(d,'block');
  d.style.height='0px';
  clearInterval(d.t);
  d.t=setInterval('et("'+d.id+'")',t);
 }
}
// Removes Classname from the given div.
function cc(n,v){
 s=n.className.split(/\s+/);
 for(p=0;p<s.length;p++){
  if(s[p]==v+n.tc){
   s.splice(p,1);
   n.className=s.join(' ');
   break;
  }
 }
}
//Accordian Initializer
function Accordian(d,s,tc){
 // get all the elements that have id as content
 l=$(d).getElementsByTagName('div');
 c=[];
 for(i=0;i<l.length;i++){
  h=l[i].id;
  if(h.substr(h.indexOf('-')+1,h.length)=='content'){c.push(h);}
 }
 sel=null;
 //then search through headers
 for(i=0;i<l.length;i++){
  h=l[i].id;
  if(h.substr(h.indexOf('-')+1,h.length)=='header'){
   d=$(h.substr(0,h.indexOf('-'))+'-content');
   d.style.display='none';
   d.style.overflow='hidden';
   d.maxh =sh(d);
   d.s=(s==undefined)? 7 : s;
   h=$(h);
   h.tc=tc;
   h.c=c;
   // set the onclick function for each header.
   h.onclick = function(){
    for(i=0;i<this.c.length;i++){
     cn=this.c[i];
     n=cn.substr(0,cn.indexOf('-'));
     if((n+'-header')==this.id){
      ex($(n+'-content'));
      n=$(n+'-header');
      cc(n,'__');
      n.className=n.className+' '+n.tc;
     }else{
      cl($(n+'-content'));
      cc($(n+'-header'),'');
     }
    }
   }
   if(h.className.match(/selected+/)!=undefined</div></div>

<div class="clearfix"></div>
                    </div>
                    <nav aria-label="...">
                        <ul class="pager">
                            <li class="previous"><a href="4667">上一篇：狡猾的按钮特效</a></li>

<li class="next"><a href="620">下一篇：div+css设计精美导航菜单</a></li>
                        </ul>
                    </nav>

<div class="alert alert-warning" role="alert">
                        <strong>免责声明：</strong> 本文仅代表作者个人观点，与爱易网无关。其原创性以及文中陈述文字和内容未经本站证实，对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺，请读者仅作参考，并请自行核实相关内容。
                    </div>

<div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/34443' title='乐视28日发布手机进展 LeUI系统Mobile版或曝光' target="_blank">
                        乐视28日发布手机进展 LeUI系统Mobile版或曝光</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/16159' title='谷歌新技术进入iOS平台：将叫板苹果Siri' target="_blank">
                        谷歌新技术进入iOS平台：将叫板苹果Siri</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/34085' title='传搜狗估值12亿美元 与360谈判进入白热化' target="_blank">
                        传搜狗估值12亿美元 与360谈判进入白热化</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/439' title='工商下月将整治手机市场' target="_blank">
                        工商下月将整治手机市场</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/34389' title='从雷军的“互联网七字诀”告诉你一个非妖魔化的小米' target="_blank">
                        从雷军的“互联网七字诀”告诉你一个非妖魔化的小米</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/437' title='戴尔正告继续上市存风险 称黑石伊坎方案有缺乏' target="_blank">
                        戴尔正告继续上市存风险 称黑石伊坎方案有缺乏</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/34093' title='传360周鸿祎曾试图阻止百度收购91无线' target="_blank">
                        传360周鸿祎曾试图阻止百度收购91无线</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/34314' title='天音通信170套餐试商用放号：流量两年不清零' target="_blank">
                        天音通信170套餐试商用放号：流量两年不清零</a></li></div>
                   
                
                  <div class="col-md-6 col-xs-12">
                      <li class="articleAbout"><a href='/ItNews/16156' title='网曝富士康“二连跳” 疑因推静音模式' target="_blank">
                        网曝富士康“二连跳” 疑因推静音模式</a></li></div>
                   
                
        </ol>
    </div>
</div>

</div>

</div>
            </div>
            <div class="clearfix"></div>

<footer class=" footer navbar-bottom">
<em>友情链接：</em>
    
      <a href="http://www.aiyiweb.com/" target="_blank">爱易网 </a>            
    
      <a href="http://www.aiyiweb.com/" target="_blank">云虚拟主机技术 </a>            
    
      <a href="http://www.aiyiweb.com/" target="_blank">云服务器技术 </a>            
    
      <a href="http://www.aiyiweb.com/" target="_blank">程序设计技术 </a>            
    
      <a href="http://www.aiyiweb.com/" target="_blank">开发网站 </a>            
    
      <a href="http://www.aiyiweb.com/" target="_blank">APP开发教程 </a>            
    
<br />
<script type="text/javascript">(function(){document.write(unescape('%3Cdiv id="bdcs"%3E%3C/div%3E'));var bdcs = document.createElement('script');bdcs.type = 'text/javascript';bdcs.async = true;bdcs.src = 'http://znsv.baidu.com/customer_search/api/js?sid=15239353030108964139' + '&plate_url=' + encodeURIComponent(window.location.href) + '&t=' + Math.ceil(new Date()/3600000);var s = document.getElementsByTagName('script')[0];s.parentNode.insertBefore(bdcs, s);})();</script>

Copyright © 2013-2026 爱易网页 当前在线：187人　
        网站在1时35分35秒内访问总人数：9070人
    当前 67.58%
　<a href="https://beian.miit.gov.cn" target="_blank">粤ICP备18100884号-2 </a>
<script charset="UTF-8" id="LA_COLLECT" src="//sdk.51.la/js-sdk-pro.min.js"></script>
<script>LA.init({ id: "JszEmKrtpbU59dY5", ck: "JszEmKrtpbU59dY5" })</script>

</footer>

</div>
   
</body>
</html>