// hide me <!--
function compute(obj) {
 	x=obj.LoanAmount.value
	y=obj.Rate.value
	z = obj.Term.value

 if ((x=="") || (y=="") || (z=="")) {
	alert("You have not entered a value in all three fields");
 }

 else {
	month = eval(pmt(x,(y*.01)/12,z*12));
	fnight = eval(pmt(x,(y*.01)/26,z*26));
	week = eval(pmt(x,(y*.01)/52,z*52));
	obj.Monthly.value = rounding(month)
 }
}

function pmt(ppl,rate,mths) {

	var x=eval((ppl*rate)/(eval(1-Math.pow(eval(rate+1),eval(0-mths)))))
	return x
}

function rounding(n)
{
	pennies = n * 100 ;
	pennies = Math.round(pennies) ;
	strPennies = "" + pennies ;
	len = strPennies.length ;
	return strPennies.substring(0, len - 2) + "." + strPennies.substring((len - 2), len);
}

function nper(obj) {
	fv = 0;
	origterm = parseFloat(obj.Term.value);
	origpay = parseFloat(obj.Monthly.value);
	extpay = parseFloat(obj.Extra.value);
	pv = parseFloat(obj.LoanAmount.value);
	per = 12;
	pv = -pv;
	pay = origpay + extpay;
	rate = obj.Rate.value;

 if (obj.Extra.value == "") {

	alert("Please enter how much extra you would like to pay off your loan!");
 }
 else {
 rate = eval((rate)/(per * 100));
 if ( rate == 0 ) // Interest rate is 0
 {
 nper_value = - (fv + pv)/pay; 
 }
 else 
 {
 nper_value = Math.log((-fv * rate + pay)/(pay+ rate * pv))/ Math.log(1 + rate);
 }
	new_nper = rounding(nper_value);
	orig_total_amt = origpay * origterm * 12;
	new_total_amt = pay * new_nper;
	save = orig_total_amt - new_total_amt;
	obj.NewTerm.value = rounding(nper_value/12);
	obj.Saving.value = Math.round(save);
 }
}

// stop hiding -->
// JavaScript Document