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<HTML>
<HEAD>
<TITLE>网站速度测试-51windows.Net</TITLE>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<META NAME="Author" CONTENT="51windows,海娃,haiwa">
<META NAME="Description" CONTENT="Power by 51windows.Net">
</HEAD>

<BODY>
<%
	Response.Expires=-1
	Response.ExpiresAbsolute=Now()-1
	Response.cachecontrol="no-cache"
	Dim Imgrandom
	Randomize
	Imgrandom = Int(799999 * Rnd + 200000)
%>
<SCRIPT LANGUAGE="javascript">
window.status = "下载数据中..."
var st = new Date()
</SCRIPT>
<img src="img.jpg?id=<%=Imgrandom%>" width=0 height=0 onerror = showerr() onload="showspeed();">
<SCRIPT LANGUAGE="javascript">
//海娃(51windows.Net)
function showspeed()
{
	var fs = 137.57	//img.jpg文件大小(K)
	var l = 2		//小数点的位数
	var et = new Date()
	alltime = fs*1000/(et - st)
	Lnum = Math.pow(10,l)
	calcspeed = Math.round(alltime*Lnum)/Lnum
	showtxt.innerHTML = ("服务器时间为：<%=now%>，您在本站的下载速度为："+calcspeed+" (K/秒)")
	window.status = "您在本站的下载速度为："+calcspeed+" (K/秒)"
}
function showerr()
{
	showtxt.innerHTML = ("数据下载错误,请刷新重试")
	window.status = "数据下载错误,请刷新重试"
}
</SCRIPT>
<button style="font-size:12px;width:80;height:19px;" onclick=location.href="speedtest.asp?<%=Imgrandom%>">重新测试</button>
<span id=showtxt></span>
</BODY>
</HTML>

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