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I started learning Javascript recently and I have to create a mortgage calculator using Javascript. Here is my code, I know it’s probably very noobish but I need help with it and any help is greatly appreciated, thanks! ?
[code]
<html>
<head>
<script type=”text/javascript”>
function checkForZero (field) {
if (field.value == 0 || field.value.length == 0)
{ alert (“NO ZERO’S!!!”);
field.focus(); }
else
calculatePayment (field.form);
}
function show_prompt ()
{
var interestRate=prompt (“Enter interest Rate (%)”);
var lengthLoan=prompt (“Enter length of the loan (Years)”);
var loanAmount=prompt (“Enter amount of loan($)”);
var n = interestRate/12*lengthLoan;
var m1 = loanAmount * math.pow ((1+interestRate) , n);
var m2 = m1 * interestRate;
var m3 = math.pow((1+interestRate) , n)-1;
var m = m2 / m3;
var mortgage=prompt (m);
}
</script>
</head>
<body>
<input type=”button” onclick=”show_prompt()” value=”Calculate” />
</body>
</html>