<script
language="javascript"
type="text/javascript">
var
weight,
eTime;
var
horsepower1,
horsepower2,
horsepower3,
horsepower4;
var
temp1,
temp2,
temp3,
temp4;
var
speed;
var
finalhp1,
finalhp2,
finalhp3,
finalhp4,
finalhp5,
finalhp6;
function
create(form){
eTime
=
form.elapsedTime.value;
weight
=
form.vehicleWeight.value;
temp1
=
eTime /
5.825;
temp1
=
temp1 *
temp1 *
temp1;
horsepower1
=
weight /
temp1;
finalhp1
=
roundOff(horsepower1,
2)
horsepower2
=
horsepower1 *
1.3;
finalhp2
=
roundOff(horsepower2,
2)
text
=
"<HEAD><TITLE>1/4 Method</TITLE>";
text
+=
"</HEAD><BODY BGCOLOR=#000000
TEXT=#FFFFFF>";
text
+=
"<font face=arial
size=-1><CENTER>";
text
+=
"Horsepower Results - 1/4 Mile
Method</CENTER><P>";
text
+=
"Your "
+form.carModel.value;
text
+=
" weighs about "
+form.vehicleWeight.value+
" pounds ";
text
+=
"and can complete a 1/4 mile in
about ";
text
+=
form.elapsedTime.value;
text
+=
" seconds. That means that you've
got about "
+finalhp1;
text
+=
" HP at the wheels, and about "
+
finalhp2;
text
+=
" HP at the flywheel.</font>";
text
+=
"<center><form><input type=button
onClick='self.close()' ";
text
+=
"value='Close
Window'></form></center></font>";
resultsWindow=window.open("",
"displayWindow",
"toolbar=no,menubar=no,scrollbar=auto,resizable=no,width=320,height=180")
resultsWindow.document.writeln(text);
resultsWindow.document.close();
}
function
input1(form)
{
Ctrl
=
form.carModel;
if
(Ctrl.value
==
"")
{
validatePrompt
(Ctrl,
"Please Input a Car Model.")
return
(false);
}
else
return
(true);
}
function
input2(form)
{
Ctrl
=
form.vehicleWeight;
if
(Ctrl.value
==
"")
{
validatePrompt
(Ctrl,
"Please enter Your Vehicle Weight
in Pounds.")
return
(false);
}
else
return
(true);
}
function
input3(form)
{
Ctrl
=
form.elapsedTime;
if
(Ctrl.value
==
"")
{
validatePrompt
(Ctrl,
"Please enter Your 1/4 mile
trapspeed. You can estimate...")
return
(false);
}
else
return
(true);
}
function
runSubmit (form,
button)
{
if
(!input1(form))
return;
if
(!input2(form))
return;
if
(!input3(form))
return;
create(form);
return;
}
function
validatePrompt (Ctrl,
PromptStr)
{
alert
(PromptStr)
Ctrl.focus();
return;
}
function
roundOff(value,
precision)
{
value
=
""
+
value;
precision
=
parseInt(precision);
var
whole =
""
+
Math.round(value
*
Math.pow(10,
precision));
var
decPoint =
whole.length
-
precision;
if(decPoint
!=
0)
{
result
=
whole.substring(0,
decPoint);
result
+=
".";
result
+=
whole.substring(decPoint,
whole.length);
}
else
{
result
=
whole;
}
return
result;
}
</script>
<b>Horsepower
Calculator</b>
<form
name="hp"
method=get
action="">
<table
border=0>
<tr
bgcolor="#909090">
<td
align=right><font
face="Arial,
Helv"><b>Car
Model : </b></font></td>
<td><INPUT
TYPE=text
NAME="carModel"
SIZE=20></td>
<tr
bgcolor="#909090">
<td
align=right><font
face="Arial,
Helv"><b>Vehicle
Weight With Driver : </b></font></td>
<td><INPUT
TYPE=text
NAME="vehicleWeight"
SIZE=10>
(in Pounds)</td>
<tr
bgcolor="#909090">
<td
align=right><font
face="Arial,
Helv"><b>Quarter
Mile time : </b></font></td>
<td><INPUT
TYPE=text
NAME="elapsedTime"
SIZE=10>
(in seconds)</td>
</table>
</font>
<input
type=button
onClick="runSubmit(form)"
name="HPcalc"
value="Calculate
Horsepower">
</form>
