QQ邮箱文件中转站点击下载效果

以下为详细代码

<html>
<title>QQ邮箱文件中转站点击下载效果</title>
<head>
<script type="text/javascript">
function S(i) { return document.getElementById(i); }
function download( evt, fid){
	var _event = evt ? evt : event;
	var _target = evt ? evt.target : event.srcElement;
	var _p = S( "downloadPanel" );
	_p.style.top = _event.clientY + document.body.scrollTop ;
	_p.style.left = ( _event.clientX + document.body.scrollLeft < 160 ? _event.clientX + document.body.scrollLeft + 10  : _event.clientX  + document.body.scrollLeft - 120 );
	Show( "downloadPanel" , true );	
	_p.focus();
}
function Show(obj, bShow) {
	obj = (typeof(obj) == "string" ? S(obj) : obj);
	if (obj) obj.style.display= (bShow ? "" : "none");
}
function hideDownloadPanel( evt ){
	Show( "downloadPanel" ,false);	
}
function checkClick(evt){
	var _target = evt ? evt.target : event.srcElement ;
	var _id = _target.id;
	if( _id == "" ){
		_id = _target.parentNode.id;
	}
	if( _id !="downloadDirect" && _id != "downloadAgent" && _id != "downloadPanel" && _id.indexOf( "downloadFile_" ) < 0 && _id.indexOf( "downloadLink_" ) < 0 ){
		Show( "downloadPanel" , false );
	}
}
window.onload = function(){
	document.body.onclick=checkClick;
}
</script>
<style type="text/css">
html,body{
	font-size:12px;
}
img {border:none}
a {color:#4d5d2c;text-decoration:underline;cursor:pointer;}
.pointer {cursor:pointer;}
.right {float:right}
.right img{margin:0 0 0 6px}
.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">
	<img src="http://res.mail.qq.com/zh_CN/htmledition20080612/images/ico_closetip_gray.gif" class="right pointer" onclick="hideDownloadPanel();" title="关闭" />
	<div class="">下载方式：</div>
	<div style="padding:6px 0 0 0;"><a id="downloadDirect">直接下载</a>&nbsp;&nbsp;&nbsp;&nbsp;<a id="downloadAgent" style="cursor:pointer;text-decoration:underline;"  title="用QQ超级旋风下载本文件" >使用旋风下载</a><span class="addrtitle" style="display:none;" id="downloadQQDownload">安装<a href="#" target="_blank" onclick="alert('安装超级旋风后，重新启动浏览器即可使用旋风进行下载。');" title="您还未安装超级旋风下载软件，点击这里下载安装。">旋风</a>下载</span></div>
	<div class="addrtitle" style="padding:6px 0 0 0;">
	(提取码：<span id="downloadCode">XXXXXXX</span>)
	</div>
</div>
<a id="downloadLink_001"  title="" onclick="download( event, 'downloadLink' );" >下载</a><br/>
<a id="downloadLink_002"  title="" onclick="download( event, 'downloadLink' );" >下载</a><br/><br/><br/>
<a id="downloadLink_003"  title="" onclick="download( event, 'downloadLink' );" >下载</a><br/><br/><br/><br/><br/><br/>
<a id="downloadLink_004"  title="" onclick="download( event, 'downloadLink' );" >下载</a><br/><br/><br/><br/><br/><br/><br/><br/>
</body>
</html>