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选择菜单.html
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选择菜单.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>下拉菜单</title>
<style type="text/css">
body,ul,li{ margin:0; padding:0; font-size:13px;}
ul,li{list-style:none;}
#divselect{width:186px; margin:80px auto; position:relative; z-index:10000;}
#divselect cite{width:150px; height:24px;line-height:24px; display:block; color:#807a62; cursor:pointer;font-style:normal;
padding-left:4px; padding-right:30px; border:1px solid #333333;
background:url(xjt.png) no-repeat right center;}
#divselect ul{width:184px;border:1px solid #333333; background-color:#ffffff; position:absolute; z-index:20000; margin-top:-1px; display:none;}
#divselect ul li{height:24px; line-height:24px;}
#divselect ul li a{display:block; height:24px; color:#333333; text-decoration:none; padding-left:10px; padding-right:10px;}
</style>
<script type="text/javascript">
window.onload=function(){
var box=document.getElementById('divselect'),
title=box.getElementsByTagName('cite')[0],
menu=box.getElementsByTagName('ul')[0],
as=box.getElementsByTagName('a'),
index=-1;
// 点击三角时
title.onclick=function(event){
title.style.display = 'none';
menu.style.display = 'block';
event = event || window.event;
if(event.stopPropagation){
event.stopPropagation();
}else{
event.cancelBubble = true;
}
// 执行脚本
document.onkeyup= function(event){
event = event || window.event;
event.preventDefault ? event.preventDefault() : event.returnValue = false;
for (var i=0;i<as.length;i++) {
as[i].style.background='#fff';
};
if(event.keyCode==38){
if(index <= 0){
index = as.length-1;
}else{
index = index - 1;
}
as[index].style.background='#eee';
}else if(event.keyCode==40){
if(index >= as.length-1){
index = 0;
}else{
index = index + 1;
}
as[index].style.background='#eee';
}else if(event.keyCode==13){
title.innerHTML=as[index].innerHTML;
menu.style.display = 'none';
title.style.display = 'block';
}
}
}
// 滑过滑过、离开、点击每个选项时
for (var i = 0; i < as.length; i++) {
as[i].onmouseover=function(){
this.style.background = '#eee';
}
as[i].onmouseout = function(){
this.style.background = '#fff';
}
as[i].onclick = function(event){
event = event || window.event;
if(event.stopPropagation){
event.stopPropagation();
}else{
event.cancelBubble = true;
}
title.innerHTML = this.innerHTML;
menu.style.display = 'none';
title.style.display = 'block';
}
};
// 执行脚本
// 点击页面空白处时
document.onclick = function(){
menu.style.display = 'none';
title.style.display = 'block';
}
// 执行脚本
}
</script>
</head>
<body>
<div id="divselect">
<cite>请选择分类</cite>
<ul>
<li id="li"><a href="javascript:;" selectid="1">ASP开发</a></li>
<li><a href="javascript:;" selectid="2">.NET开发</a></li>
<li><a href="javascript:;" selectid="3">PHP开发</a></li>
<li><a href="javascript:;" selectid="4">Javascript开发</a></li>
<li><a href="javascript:;" selectid="5">Java特效</a></li>
</ul>
</div>
</body>
</html>