jquery div提示框渐隐弹出与隐藏效果

<!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><link rel="dns-prefetch" href="//www.jiangweishan.com"><link rel="dns-prefetch" href="//www.jiangweishan.comsearch.php"><link rel="dns-prefetch" href="//shang.qq.com"><link rel="dns-prefetch" href="//www.w3.org"><link rel="dns-prefetch" href="//ajax.googleapis.com"><link rel="dns-prefetch" href="//www.jb51.net"><link rel="dns-prefetch" href="//files.jb51.net"><link rel="dns-prefetch" href="//www.mockplus.cn"><link rel="dns-prefetch" href="//www.aliyun.com"><link rel="dns-prefetch" href="//pagead2.googlesyndication.com"><link rel="dns-prefetch" href="//weibo.com"><link rel="dns-prefetch" href="//beian.miit.gov.cn"><link rel="dns-prefetch" href="//hm.baidu.com"><link rel="dns-prefetch" href="//www.zblogcn.com"><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>jquery div提示框渐隐弹出与隐藏</title><script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script><style> *{margin:0;padding:0;font-size:12px;} input{width:120px;height:30px;cursor:pointer;} #note{position:absolute;width:400px;padding:20px;background:#eee;border:1px solid #ccc;left:40%;z-index:9999;display:none;} </style><script> $(function(){ $('input').click(function(){ if(!$('#note').is(':visible')){ $('#note').css({display:'block', top:'-100px'}).animate({top: '+100'}, 500, function(){ setTimeout(out, 3000); }); } }); }); function out(){ $('#note').animate({top:'0'}, 500, function(){ $(this).css({display:'none', top:'-100px'}); }); } </script></head><body><div id="note"><a href="http://www.jb51.net" target="_blank">脚本之家</a></div><input type="button" value="点我，30s后消失"></body></html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]