JavaScript实现QQ列表展开收缩扩展功能

本文实例为大家分享了js实现QQ列表展开收缩扩展展示的具体代码,供大家参考,具体内容如下

效果图:

代码:

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>无标题文档</title>

<style>

ul,h2{margin:0; padding:0;}

li{list-style-type:none;}

#list{margin:0 auto; border:#333 solid 1px; width:250px;}

#list h2 {background: url(../img/ico1.gif) no-repeat 5px 14px #0C6; text-indent:20px; height:32px; line-height:32px;}

#list ul li{text-indent:25px; border-bottom:#333 solid 1px; line-height:24px; height:23px; }

#list .active{background: url(../img/ico2.gif) no-repeat 5px 14px #693; text-indent:20px; height:30px; line-height:30px;}

#list ul{display:none;}

.hover{background:#CFC;}

</style>

<script>

window.onload = function(){

var oUl = document.getElementById("list");

var aUl =oUl.getElementsByTagName("ul");

var aH2 = oUl.getElementsByTagName("h2");

var aLi = null;

var arrLi = [];

var that = null;

for(i=0;i<aH2.length;i++){

aH2[i].index = i;

aH2[i].onclick = function(){

if(this.className==''){

for(i=0;i<aH2.length;i++){

aH2[i].className='';

aUl[i].style.display='none';

}

this.className='active';

aUl[this.index].style.display = 'block';

}else{

this.className='';

aUl[this.index].style.display='none';

}

}

}

for(i=0;i<aUl.length;i++){

aLi =aUl[i].getElementsByTagName("li");

for(j=0;j<aLi.length;j++){

arrLi.push(aLi[j]);

}

}

for(var i=0;i<arrLi.length;i++){

arrLi[i].onclick = function(){

for(i=0; i<arrLi.length;i++){

arrLi[i].className='';

}

this.className = 'hover';

}

}

};

</script>

</head>

<body>

<ul id="list">

<li class="lis">

<h2>我的好友</h2>

<ul>

<li>张三</li>

<li>张四</li>

<li>张五</li>

<li>张六</li>

</ul>

</li>

<li class="lis">

<h2>企业好友</h2>

<ul>

<li>李四</li>

<li>李小四</li>

<li>李四二</li>

<li>李毅</li>

<li>李二</li>

</ul>

</li>

<li class="lis">

<h2>黑名单</h2>

<ul>

<li>张三</li>

<li>李四</li>

</ul>

</li>

</ul>

</body>

</html>

以上是 JavaScript实现QQ列表展开收缩扩展功能 的全部内容, 来源链接: utcz.com/z/313616.html

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