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脚本说明:
第一步:把如下代码加入<head>区域中
<SCRIPT language="JavaScript">
<!--
function MakeArray(n) {
this.length = n;
for (var i = 1; i <= n; i++) {
this[i] = 0 }
return this
}
speedVar = new MakeArray(11);
speedVar[1] = "1.1719"
speedVar[2] = "1.7578"
speedVar[3] = "3.5156"
speedVar[4] = "4.1016"
speedVar[5] = "6.8359"
speedVar[6] = "7.8125"
speedVar[7] = "16.6250"
speedVar[8] = "187.9883"
speedVar[9] = "1220.7031"
speedVar[10] = "3295.8984"
speedVar[11] = "5493.1641"
speedVar[12] = "18920.8984"
function compute(form, mult){
for (i=1; i < 13; i++){
if (form.size.value==null||form.size.value.length==0){
form.size.value=0;}
if (form[i+"hour"].value==null||form[i+"hour"].value.length==0){
form[i+"hour"].value=0;}
if (form[i+"minute"].value==null||form[i+"minute"].value.length==0){
form[i+"minute"].value=0;}
if (form[i+"second"].value==null||form[i+"second"].value.length==0){
form[i+"second"].value=0;}
if (mult != 0 && form.size.value != 0){
with (Math){
var speed = speedVar[i];
var TotalTime = ((form.size.value*mult)/speed);
var TotalHours = floor((TotalTime/3600));
var TotalHoursMod = (TotalTime%3600);
var TotalMin = floor(TotalHoursMod/60);
var TotalMinMod = (TotalHoursMod%60);
var TotalSec = floor(TotalMinMod);
form[i+"hour"].value=TotalHours;
form[i+"minute"].value=TotalMin;
form[i+"second"].value=TotalSec;
}
}
}
return;
}
//-->
</SCRIPT>
第二步:把如下代码加入<body>区域中
<form METHOD="POST" name="s">
<input type="hidden" name="8hour" value>
<input type="hidden" name="8minute" value>
<input type="hidden" name="8second" value>
<input type="hidden" name="9hour" value>
<input type="hidden" name="9minute" value>
<input type="hidden" name="9second" value>
<input type="hidden" name="10hour" value>
<input type="hidden" name="10minute" value>
<input type="hidden" name="10second" value>
<input type="hidden" name="11hour" value>
<input type="hidden" name="11minute" value>
<input type="hidden" name="11second" value>
<input type="hidden" name="12hour" value>
<input type="hidden" name="12minute" value>
<input type="hidden" name="12second" value>
<div align="center"><center>
<table BORDER="4">
<tr>
<td>文件大小
<input TYPE="TEXT" NAME="size" SIZE="10">
<input TYPE="BUTTON"
OnClick="compute(this.form, 1)" VALUE="KB">
<input TYPE="BUTTON"
OnClick="compute(this.form, 1024)" VALUE="MB">
</td>
<script language="JavaScript">
<!--
document.s.size.focus();
// -->
</script>
<td colspan="3">
<div align="center">
<center>
需要下载时间(理想值)
</center>
</div>
</td>
</tr>
<tr align="center">
<td>调制解调器速率...</td>
<td>小时</td>
<td>分钟</td>
<td>秒</td>
</tr>
<tr align="center">
<td BGCOLOR="#FFFFFF">9.6 Kb</td>
<td>
<input TYPE="TEXT" NAME="1hour" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="1minute" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="1second" SIZE="6">
</td>
</tr>
<tr align="center">
<td BGCOLOR="#FFFFFF">14.4 Kb</td>
<td>
<input TYPE="TEXT" NAME="2hour" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="2minute" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="2second" SIZE="6">
</td>
</tr>
<tr align="center">
<td BGCOLOR="#FFFFFF">28.8 Kb</td>
<td>
<input TYPE="TEXT" NAME="3hour" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="3minute" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="3second" SIZE="6">
</td>
</tr>
<tr align="center">
<td BGCOLOR="#FFffff">33.6K</td>
<td>
<input type="TEXT" name="4hour" size="6">
</td>
<td>
<input type="TEXT" name="4minute" size="6">
</td>
<td>
<input type="TEXT" name="4second" size="6">
</td>
</tr>
<tr align="center">
<td BGCOLOR="#FFCCCC">56 Kb</td>
<td>
<input TYPE="TEXT" NAME="5hour" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="5minute" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="5second" SIZE="6">
</td>
</tr>
<tr align="center">
<td BGCOLOR="#FFFFFF">ISDN (64 Kb)</td>
<td>
<input TYPE="TEXT" NAME="6hour" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="6minute" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="6second" SIZE="6">
</td>
</tr>
<tr align="center">
<td BGCOLOR="#FFFFFF">ISDN (128 Kb)</td>
<td>
<input TYPE="TEXT" NAME="7hour" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="7minute" SIZE="6">
</td>
<td>
<input TYPE="TEXT" NAME="7second" SIZE="6">
</td>
</tr>
</table>
</center></div>
</form>
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