JS实现点击链接前的确认提醒功能

实现链接点击确认与下载提示

<html> 
<head> 
 
<style type="text/css"> 
html,body{ font-size:12px;} 
a {color:#4d5d2c;text-decoration:underline;cursor:pointer;} 
.pointer {cursor:pointer;} 
.infobar {background:#fff9e3;border:1px solid #fadc80;color:#743e04;margin-bottom:10px;padding:8px 20px 4px 20px;} 
</style> 
</head> 
<body> 
<div id="downloadPanel" style="position:absolute;top:0px;left:0px;width:160px;z-index:999;padding:6px 2px 6px 10px;border:1px solid #fb7;display:none;" class="infobar"> 
<div style="padding:3px 0 0 0;">打开网址&nbsp;&nbsp;复制&nbsp;&nbsp;关闭</div> 
</div> 
<div id="xx"> 
http://www.baidu.com 
https://www.jb51.net 
http://www.163.com 
http://www.sina.com 
http://www.qq.com 
</div> 
</body> 
</html> 

注意：引入外部JavaScript代码后，需刷新页面方可生效。