IM helping a family member with a project and we are trying to make a page where they type in a number and when they click submit it the page opens in the same window with the results and an alert popup with the solution. I do not know how to take the form information into a page within the same window and make the alert and page display the solution. please help, here is what I have for the first page, I just need to know what to add to create the second page with all that.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.1 Transitional//EN">

<TABLE align="center" width="950" BORDER=0 CELLPADDING=5>
<TABLE align="center" width="950" BORDER=0 CELLPADDING=5>
<TD WIDTH=80%>
<H1 align="center">

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Celsius and Fahrenheit Conversion</H1>
<H1 align="justify">Click whichever degree you wish to convert from and type the
temperature desired.<br> <br>
After temperature is entered click calculate to see desired results
in celsius.
<TR BGCOLOR=#FFFFFF valign="top">
<!-- start convert routine --><br />

<TABLE align="center" BORDER=5 CELLPADDING=5>
<TR BGCOLOR=#FFFFFF valign="top"><td>
<!-- start convert routine -->

<form name="Converter">
<h2>Fahrenheit to Celsius </h2></center>
<div align="center"></FORM>
<form name="Converter2" target="_self" action="--WEBBOT-SELF--" method="POST">
<!--webbot bot="SaveResults" S-Builtin-Fields S-Form-Fields U-File="file:///C:/Users/James/Documents/My Web Sites/_private/form_results.csv" S-Format="TEXT/CSV" -->
<input name="C" type="hidden" onFocus="clear_field(this)"
onChange="F.value = (212-32)/100 * this.value + 32 " value="0";>
&deg;F&nbsp;<input type="text" name="F" value="32"
onFocus="clear_field(this)"; onChange="C.value = 100/(212-32) *
(this.value - 32 )"

<input type="button" name="convert" value="Calculate"
onClick="alert(C.value)" >
<INPUT TYPE="reset" N
AME="reset" VALUE="Reset"><br>
<br />