//$version:  $
//<!-- 
function Pop (path, ficenter, price) {
	if (ficenter != "") {
		path = path + "?ficenter=1";
		if (price != "") {
			path = path + "&price=" + price;
		} else {
			path = path + "&price=0";
		}
		hw = window.open(path, "MonthlyPaymentCalc", "height=400,width=375,status=no,toolbar=no,menubar=no,location=no,resizable=yes,scrollbars=no,titlebar=no");
	} else {
		path = path + "?ficenter=";
		if (price != "") {
			path = path + "&price=" + price;
		} else {
			path = path + "&price=0";
		}
		hw = window.open(path, "MonthlyPaymentCalc", "height=290,width=375,status=no,toolbar=no,menubar=no,location=no,resizable=yes,scrollbars=no,titlebar=no");
	}
	hw.focus();
	return false;
}

function roundAmount(n) {
	var s = "" + Math.round(n * 100) / 100
	var i = s.indexOf('.')
	if (i < 0) return s + ".00"
	var t = s.substring(0, i + 1) + s.substring(i + 1, i + 3)
	if (i + 2 == s.length) t += "0"
	return t;
}
function stripComma(target) {
	if (null != target)
	{
		splitstring = target.split(",");
		if (null != splitstring)
		{
			target = splitstring[0];
			for(j = 1; j < splitstring.length; j++)
			{
				target += splitstring[j];
			}
		}
	}
	return target;
}
function stripNonNumeric(pPrice)
{
	var tmp = "", chr;
	for (var i=0; i<pPrice.length; i++)
	{
		chr = pPrice.charAt(i);
		if ((chr == '.') || !isNaN(parseInt(chr)))
			tmp += chr;
	}
	
	return tmp;
}

function GetYears(months) {
	return months/12;
}

function MonthlyPaymentCalc () {
	price = document.MonthlyPayment.price.value;
	price = stripComma(price);
	APR = stripNonNumeric(document.MonthlyPayment.APR.value);
	payment = document.MonthlyPayment.payment.value;
	payment = stripComma(payment);
	for (var i = 0; i < document.MonthlyPayment.months.length; i++) {
		if (document.MonthlyPayment.months[i].selected == true) {
			months = document.MonthlyPayment.months[i].value;
		}
	}
	APR = APR/100;
	temp1 = (1+(APR/12));
	temp2 = GetYears(months);
	temp3 = Math.pow((temp1),-(temp2*12));
	if (price.indexOf(".") != -1) {
		_alert ("Decimals should not be entered in the total price box");
		return false;
	} else if (payment.indexOf(".") != -1) {
		_alert ("Decimals should not be entered in the down payment box");
		return false;
	} else {
		RemainingPayment = price - payment;
		if (RemainingPayment > 0) {
			EstMonthlyPayment = (RemainingPayment * APR) / (12* (1 - temp3));
			EstMonthlyPayment = roundAmount(EstMonthlyPayment);
		} else {
			EstMonthlyPayment = "0.00";
		}
		document.MonthlyPayment.EstMonthlyPayment.value = EstMonthlyPayment;
		return false;
	}
}

function _alert(str)
{
	//sp021605 - Block alerts in production
	if (typeof(ebay)!="undefined")
		ebay.oDocument.messageBox(str);
	else
		alert(str);
}
// -->