month loan payment calculation in ASP-same window-results

**lse123** · 12-07-2007, 03:53 PM

I make a month loan payment calculation script in ASP , but I want results appear below the form not in a new window screen , what to do ? How I include a file in asp ? I must have only one file ?
tell me for results get deleted and reappear new or results appear between form and last results for subsequent submissions ...?
form can be found at : http://www.kolectivavillas.com/papho.../loan_calc.htm
html doc

Code:

<HTML>
<HEAD>
<TITLE>Monthly Payment</TITLE>
</HEAD>
<BODY>
<H1 align="center">Monthly Loan Payment Calculation</H1>
<P ALIGN=center>This application calculates monthly payment options for <br>
  a loan
based on the amount borrowed and an interest rate.<table width="400" align="center">
  <tr><td width="434"><FORM ACTION="MonthlyPayments.asp" METHOD=POST>
<TABLE WIDTH=94% ALIGN=center BORDER=1 CELLSPACING=1 CELLPADDING=1>
 <TR>
  <TD width="199">&nbsp;</TD>
  <TD width="192">&nbsp;</TD>
 </TR>
 <TR>
  <TD>Amount to Borrow(CY&pound;):</TD>
  <TD><input type="text" name=txtLoanLow size=15></TD>
 </TR>
 <TR>
  <TD>Annual Interest Rate(%):</TD>
  <TD><INPUT TYPE="text" NAME=txtRateLow SIZE=10>
  </TD>
 </TR>
 <TR>
  <TD>Number of Years:</TD>
  <TD><INPUT TYPE="text" NAME=txtYears SIZE=10></TD></TR>
 <TR>
  <TD COLSPAN=2 ALIGN=center>
   <INPUT TYPE="submit" VALUE="Submit">
   <INPUT TYPE="reset" VALUE="Reset"> 
  </TD></TR>
</TABLE>
</FORM></td></tr></table>
<p>&nbsp;</p>
</BODY>
</HTML>

asp doc

Code:

<% option explicit
 dim dblLoanLow, dblRateLow, dblYears
 dim dblRateLow1
 dim dblPayment, dblMonthlyRate, dblMonths
 dim intErrCnt
 
 intErrCnt = 0 %>
<HTML>
<HEAD>
<TITLE>MonthlyPayments.asp</TITLE>
<style type="text/css">
<!--
.style2 {
 font-family: Arial, Helvetica, sans-serif;
 font-weight: bold;
}
.style3 {
 color: #FF0000;
 font-family: Arial, Helvetica, sans-serif;
 font-size: 16px;
 font-style: normal;
 font-weight: bold;
}
-->
</style>
</HEAD>
<% 
 ' validate lower limit of loan amount
 if(not(isNumeric(Request.Form("txtLoanLow")))) then
  Response.Write "The  amount borrowed must be numeric.<BR>"
  intErrCnt = intErrCnt + 1 %>
  <input name="button" type="button" onclick="history.go(-1)" value="Back"><%
 else
  dblLoanLow = CDbl(Request.Form("txtLoanLow"))
  if(dblLoanLow < 0) then
   Response.Write "The loan amount must be a positive number.<BR>"
   intErrCnt = intErrCnt + 1%>
  <input name="button" type="button" onclick="history.go(-1)" value="Back"><%
  end if
 end if
 ' now validate the interest rates 
 if(not(isNumeric(Request.Form("txtRateLow")))) then
  Response.Write "The interest rate must be numeric.<BR>"
  intErrCnt = intErrCnt + 1%>
  <input name="button" type="button" onclick="history.go(-1)" value="Back"><%
 else
  dblRateLow = CDbl(Request.Form("txtRateLow"))
  if(dblRateLow < 1 OR dblRateLow > 100) then
  ' make sure it was entered as a percentage, not a decimal number
   Response.Write "The interest rate should be entered as a percentage, without the % sign.<BR>"
   intErrCnt = intErrCnt + 1%>
  <input name="button" type="button" onclick="history.go(-1)" value="Back"><%
  end if
 end if
 ' now convert the rate to a decimal number
 dblRateLow1 = dblRateLow / 100.0
 if(not(isNumeric(Request.Form("txtYears")))) then
  Response.Write "The number of years must be numeric not negative.<BR>"
  intErrCnt = intErrCnt + 1%>
  <input name="button" type="button" onclick="history.go(-1)" value="Back"><%
 else
  dblYears = CDbl(Request.Form("txtYears"))
 ' now convert it to the number of monthly periods
  dblMonths = dblYears * 12.0
 end if
 
 if(intErrCnt > 0) then
  Response.Write "<BR>Please press the BACK button fix any errors and re-submit."
  Response.End
 end if
 
%>
 
<BODY>
<table width="400" align="center">
  <tr><td>
<H1 align="center">Monthly Payment</H1>
<span class="style2">Amount to Borrow(CY&pound;):</span> <span class="style3"><%= dblLoanLow %><br>
</span><span class="style2"> Length of loan: </span><span class="style3"><%= dblYears %> years<br>
</span><span class="style2"> Annual Interest Rate(%): </span><span class="style3"><%= dblRateLow %><br>
</span><span class="style2"><br>
<% 
dblMonthlyRate = dblRateLow1 / 12.0
dblMonths = dblYears * 12
dblPayment = dblLoanLow /((1 - 1 / (1 + dblMonthlyRate)^dblMonths)/dblMonthlyRate) %>
<br>
Monthly Payment(CY&pound;):<span class="style3"> <%= FormatNumber(dblPayment,2,0,0,-2) %>
</span></span>
<P>
</td></tr>
</table>
<p align="center"><font face="Arial">
  <input name="button" type="button" onclick="history.go(-1)" value="Back">
</font></p>
</BODY>
</HTML>

**chrishirst** · 12-07-2007, 05:29 PM

not sure I understand what you are asking but all you need is to print out the result of the calculation when the form is submitted.

Code:

display form here
</form>

<%
if request.form("submit") <> "" then
' print results here 
end if
%>
rest of HTML code

**lse123** · 12-08-2007, 01:23 AM

I must have only one file ?

**chrishirst** · 12-08-2007, 03:28 AM

is that a question or a statement?

1/ Is this course work?

2/ this thread contradicts the one in the javascript forum.