// Mortgage calculator code


function Clear()
{
	form.CPayments.value=""
	form.CPerMonth.value=""
	form.CPerMonthIO.value=""
}

function Morgcal()
{
	form = document.Calculator
	CAmount= form.CAmount.value
		
	DownPayment= "0"
	AnnualInterestRate = form.CInterestRate.value/100
	Years= form.CRepaymentTerm.value
	MonthRate=AnnualInterestRate/12
	NumPayments=Years*12
	Prin=CAmount-DownPayment
	
	MonthPaymentRepay=Math.floor((Prin*MonthRate)/(1-Math.pow((1+MonthRate),(-1*NumPayments)))*100)/100
	MonthPaymentIO=Math.floor(Prin*MonthRate)

	form.CPayments.value=NumPayments
	form.CPerMonth.value=MonthPaymentRepay
	form.CPerMonthIO.value=MonthPaymentIO
}