Help With This Code?

I've been working on this code for a few days and I can't seem to figure out what's wrong.

It's supposed to:
1- Have a scrolling msg in a text box using Javascript
2- Give an answer in the form at the bottom

Neither seem to be working.

Can anyone help?

<html>
<head>
<title>Home Finders Nationwide Realty</title>



<script  LANGUAGE="Javascript">
<!-- Hide from old browsers
	var scrollMsg="Mortgage Rates are at their LOWEST!"
	var msgSpace="--- ---"
	var beginPos=0
function scollingMsg() {
document.msgForm.scrollingMsg.value=
scrollMsg.substring(beginPos,scrollMsg.length)+msgSpace+scrollMsg.substring(0,beginPos)
beginPos=beginPos+1
if (beginPos>scrollMsg.length) {
beginPos=0
}
window.setTimeout("scrollingMsg()",200)
}

function doMort() {
document.MortCalc.Amount.value=""
document.MortCalc.Rate.value=""
document.MortCalc.Years.value=""
document.MortCalc.Payment.value=""
document.MortCalc.Amount.focus()
}
function Calc(myfrm) {
var mortAmount=document.MortCalc.Amount.value
var mortAmount=parseInt(mortAmount, 10)
if (isNaN(mortAmount)) {
alert("The Interest rate is not a number!")
document.MortCalc.Rate.value=""
document.MortCalc.Rate.focus()
}
else
{
var mortYears=document.MortCalc.Years.value
var mostYears=parseInt(mortYears,10)
is (isNaN(mostYears)) {
alert("The Interest rate is not a number!")
document.MortCalc.Years.value=""
document.MostCalc.Years.focus()
}}}
document.MortCalc.Payment.value=monthly(mortAmount,mortRate,mortYears)
document.MortCalc.Payment.value=dollarFormat(document.MortCalc.Payment.value)
}
function monthly(mortAmount,mortRate,mortYears) {
var Irate=mortrate/1200
var Pmts=mortYears*12
var Loan=mortAmount
return Loan*(Irate/(1-(1/Math.pow(1+Irate,PMTS))))
}
function dollarFormat(valuein)
{
var formatStr=""
var Outdollars=""
var decipos=valuein.indexOf(".")
if (decipos==-1)
decipos=valuein.length
var dollars=valuein.substring(0,decipos)
var dollen=dollars.length
if (dollen>3)
{
while (dollen>o)
{
tDollars=dollars.substring(dollen-3,dollen)
if (tDollars.length==3)
{
Outdollars=","+tDollars+Outdollars
dollen=dollen-3
} else {
Outdollars=tdollars+Outdollars
dollen=0
}}
if (Outdollars.substring(0,1)==",")
dollars=Outdollars.substring(1,Outdollars.length)
else
dollars=Outdollars
}
var cents=valuein.substring(decipos+1,decipos+3)
if (cents=="")
cents="00"
var formatStr+"$"+dollars+"."+cents
return formatStr
}
//-->
</script>
</head>

<body onload="scrollingMsg()">




<p align="center"><img src="homelogo.jpg">
</p>
<div align="center"><center>
<table border="0" width="75%">
<tr>
<td></td>
<td><p align="center"><img src="calc.gif" width="100" height="106">
</a></td>
<td></td>
</tr>
<tr>
<td><p align="center"><img src="house1.gif" width="180" Height="144"></td>
<td><p align="center">
<a href="#LoanCalc">Estimate Monthly Payment</a>
</p>
<form name="msgForm">
<input type="text" name="scrollingMsg" size="23">
</form>
</td>
<td><p align="center"><img src="house2.gif" width="180" height="144"></td>
</tr>
<tr>
<td></td>
<td><img src="house3.gif" width="180" height="144"></td>
<td></td>
</tr>
</table>
</center></div>
<p align="center">
<br>
<a name="LoanCalc"></p>
<h3 align="center">Estimate Mortgage Payments</h3>
</a>
<center>
<form name="MortCalc"><table>
<tr>
<td>Amount of Mortgage:</td>
<td><Input type="text" name="amount" value="" size="9"></td>
</tr>
<tr>
<td>Interest Rate as % (e.g. 7.9):</td>
<td><input type="text" name="Rate" value="" size"9"></td>
</tr>
<tr>
<td>Number of years:</td>
<td><input type="text" name="Years" value="" size="9"></td>
</tr>
<tr>
<td>Monthly Payment:</td>
<td><INPUT type="text" Name="Payment" value="" size="12"></td>
</tr>
<tr>
<td><INPUT type="button" value="Calculate">
<INPUT Type="Reset"></td>
</tr>
</table>
</form>
</center>
<hr>
<br>
<br>
</body>
</html>

not quite sure if this is what u were looking for, but this is a scrollingmessage and it is very easy to understand.

Quote

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
<head>
<title>Untitled</title>
<script language="Javascript1.2"></script>

</head>

<body>

<div style="overflow:hidden;width:600px;height:50px;padding:10px;">
<div id="sctext" style="position:relative;font-size:100%;">
<b>this is a random test of a scrolling box that was done for no reason at all except for just to see what would happen. this is a random test of a scrolling box that was done for no reason at all except for just to see what would happen.
this is a random test of a scrolling box that was done for no reason at all except for just to see what would happen.</b>
</div></div>

</body>
</html>