代码如下： <!--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>
猎取网 
网 上 找 资 源 就 上 猎 取 网