<!DOCTYPE html>
<html>
<head>
<script src="https://zhanzhang360.qulang.net/imgupload/009811/jquery-1.7.2.min.js"></script>
<meta charset=utf-8 />
<title>js模拟select</title>
</head>
<style>
*{ margin:0; padding:0;}
li{ list-style:none;}
body{ font:12px "宋体"; color:#666;}
.select_down{ margin:100px auto; position:relative; width:600px; min-height:200px; height:auto!important; height:200px; border:1px solid #ccc; padding:20px; border-radius: 8px}
.select_down dt{float:left;width:134px;position:relative;margin-right:5px;display:inline;}
.select_down h3{color: #919191; font-size:12px;font-weight: normal;border:1px solid #e5e5e5;height:18px;background:#fbfbfb;line-height: 18px;text-indent:8px;}
.select_down ul{width: 132px;border: 1px solid #e5e5e5;background:#fbfbfb;position: absolute;top: 18px;left: 0;
z-index: 1;text-indent:8px;display:none;}
.select_down ul li{height:22px;line-height: 22px;cursor:pointer;}
.select_down ul li.hover{background:#f2f2f2;}
.select_down dt a{background:url('https://www.jb51.net/hxh-hua/478335/o_select.jpg') no-repeat;position:absolute;width:18px;height:18px;top:1px;right:1px; }
</style>
<body>
<div class="select_down" id="sel">
<dl>
<dt>
<h3>select选择</h3>
<a href="javascript:;"></a>
<ul>
<li>jq的select模拟1</li>
<li>jq的select模拟2</li>
<li>jq的select模拟3</li>
</ul>
</dt>
<dt>
<h3>select选择2</h3>
<a href="javascript:;"></a>
<ul>
<li>jq的select模拟11</li>
<li>jq的select模拟22</li>
<li>jq的select模拟31</li>
</ul>
</dt>
</dl>
</div>
<script>
window.onload=function(){
var oflink = document.getElementById('sel');
var aDt = oflink.getElementsByTagName('dt');
var aUl = oflink.getElementsByTagName('ul');
var aH3= oflink.getElementsByTagName('h3');
for(var i=0;i<aDt.length;i++){
aDt[i].index = i;
aDt[i].onclick = function(ev){
var ev = ev || window.event;
var This = this;
for(var i=0;i<aUl.length;i++){
aUl[i].style.display = 'none';
}
aUl[this.index].style.display = 'block';
document.onclick = function(){
aUl[This.index].style.display = 'none';
};
ev.cancelBubble = true;
};
}
for(var i=0;i<aUl.length;i++){
aUl[i].index = i;
(function(ul){
var iLi = ul.getElementsByTagName('li');
for(var i=0;i<iLi.length;i++){
iLi[i].onmouseover = function(){
this.className = 'hover';
};
iLi[i].onmouseout = function(){
this.className = '';
};
iLi[i].onclick = function(ev){
var ev = ev || window.event;
aH3[this.parentNode.index].innerHTML = this.innerHTML;
ev.cancelBubble = true;
this.parentNode.style.display = 'none';
};
}
})(aUl[i]);
}
}
</script>
</body>
</html>
