日期:2014-05-16  浏览次数:20328 次

js美化下拉菜单,点击空白外自动收缩
麻烦帮我看下下面的下拉项代码,我点击打开菜单后,鼠标点击别的地方,怎么样让打开的菜单项自动收缩起来呢,谢谢



<!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=utf-8" />
<title>无标题文档</title>
<style>
body,htmy{ margin:0; padding:0;}
div,ul,li{margin:0; padding:0;}
ul,li{list-style:none;}
#macstyle .select_box{height:22px;  width:113px;}
#macstyle div.tag_select{display:block;color:#fff; text-align:left; padding-left:10px;width:113px;height:150px;background:url(http://img.bbs.csdn.net/upload/201309/05/1378377493_953497.gif) no-repeat;line-height:22px;}
#macstyle div.tag_select_hover{display:block;color:#fff;text-align:left; padding-left:10px;width:113px;height:22px;background:url(http://img.bbs.csdn.net/upload/201309/05/1378377493_953497.gif) no-repeat;line-height:22px;}
#macstyle div.tag_select_open{display:block;color:#fff;text-align:left; padding-left:10px;width:113px;height:22px;background:url(http://img.bbs.csdn.net/upload/201309/05/1378377493_953497.gif) no-repeat;line-height:22px;}
#macstyle ul.tag_options{position:absolute;list-style:none;text-align:left; }
#macstyle ul.tag_options li{ background:#414348;display:block;text-align:left; padding-left:10px;width:103px;height:30px;text-decoration:none;line-height:30px;color:#fff;}
#macstyle ul.tag_options li.open_hover{color:#fff; background:#6c6f75;}
#macstyle ul.tag_options li.open_selected{color:#fff;}
</style>
<script>
var selects = document.getElementsByTagName('select');

var isIE = (document.all && window.ActiveXObject && !window.opera) ? true : false;

function $(id) {
return document.getElementById(id);
}

function stopBubbling (ev) {
ev.stopPropagation();
}

function rSelects() {
for (i=0;i<selects.length;i++){
selects[i].style.display = 'none';
select_tag = document.createElement('div');
select_tag.id = 'select_' + selects[i].name;
select_tag.className = 'select_box';
selects[i].parentNode.insertBefore(select_tag,selects[i]);

select_info = document.createElement('div');
select_info.id = 'select_info_' + selects[i].name;
select_info.className='tag_select';
select_info.style.cursor='pointer';
select_tag.appendChild(select_info);

select_ul = document.createElement('ul');
select_ul.id = 'options_' + selects[i].name;
select_ul.className = 'tag_options';
select_ul.style.position='absolute';
select_ul.style.display='none';
select_ul.style.zIndex='999';
select_tag.appendChild(select_ul);

rOptions(i,selects[i].name);

mouseSelects(selects[i].name);

if (isIE){
selects[i].onclick = new Function("clickLabels3('"+selects[i].name+"');window.event.cancelBubble = true;");
}
else if(!isIE){
selects[i].onclick = new Function("clickLabels3('"+selects[i].name+"')");
selects[i].addEventListener("click", stopBubbling, false);
}
}
}


function rOptions(i