download time javascript

Esta sencilla rutina javascript calcula el tiempo apróximado que tardará en ser bajado un fichero, usando tu modem.

Código Javascript


<HTML>
<HEAD>
<TITLE>Download Time Calculator</TITLE>
<center><h2><font color="navy">Download Time Calculator</font></h2>
<br><font face="arial">
Este JavaScript calcula el tiempo apróximado  que<br> 
tardará en ser bajado un fichero, usando tu modem.
<SCRIPT LANGUAGE="JavaScript">

<!-- Begin
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] = "6.8359"
speedVar[5] = "7.8125"
speedVar[6] = "16.6250"
speedVar[7] = "187.9883"
speedVar[8] = "1220.7031"
speedVar[9] = "3295.8984"
speedVar[10] = "5493.1641"
speedVar[11] = "18920.8984"
function compute(form, mult){
for (i=1; i < 12; 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;
}
// End -->
</SCRIPT>
</HEAD>
<!-- Copia este código dentro de el TAG  BODY en tu documento HTML -->
<BODY>
<FORM METHOD="POST">
<CENTER>
<TABLE BORDER="4">
<TR>
<TD>Tamaño del Archivo?
<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>
<TD colspan=3><center><B>Este tardará aproximadamente ....</B></CENTER>
</TD>
</TR>
<TR>
<TH>Si tu Modem es un ....</TH>
<TH>Horas </TH>
<TH>Minutos </TH>
<TH>Segundos</TH>
</TR>
<TR>
<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>
<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>
<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>
<TD BGCOLOR="#ffffff">56 Kb</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>
<TD BGCOLOR="#ffffff">ISDN (64 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>
<TD BGCOLOR="#ffffff">ISDN (128 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>
<TD BGCOLOR="#ffffff"></TD>
<TD><INPUT TYPE="HIDDEN" NAME="7hour" SIZE="6"> </TD>
<TD><INPUT TYPE="HIDDEN" NAME="7minute" SIZE="6"> </TD>
<TD><INPUT TYPE="HIDDEN" NAME="7second" SIZE="6"></TD>
</TR>
<INPUT TYPE="HIDDEN" NAME="8hour" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="8minute" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="8second" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="9hour" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="9minute" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="9second" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="10hour" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="10minute" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="10second" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="11hour" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="11minute" SIZE="6">
<INPUT TYPE="HIDDEN" NAME="11second" SIZE="6">
</font>
</TABLE>
</FORM>
</CENTER>
</SCRIPT>
<br><br><br>
</body>
</html>
Ver ejemplo Javascript en funcionamiento