/**
 * Calculate monthly payments
 * @param int months
 * @param float price
 * @param float interest
 */
function calculateMonthlyPayment(months, price, interest)
{
	$('PaymentArea').addClass('hidden');
	if (months == '-'){
		$('PaymentMonths').set('text', '');
		$('PaymentResult').set('text', '');
		return false;
	} else {
		if (interest > 0){
			mi = (interest / 100 / 12);
			n = months * -1;
			payment = (mi / (1 - Math.pow((1 + mi), n))) * price;
			payment = payment.round(2);
		} else payment = (price / months).round(2);
		$('PaymentMonths').set('text', months);
		$('PaymentResult').set('text', '$' + payment);
		$('PaymentArea').removeClass('hidden');
	}
	// c = (r / (1 ? (1 + r)^?N)) * P 
	// =(6.5/100/12)/(1-(1+6.5/100/12)^(-30*12))*200000
}

/**
 * Export to pdf
 * @param int id
 */
function exportToPdf(id)
{
	/** open the window for the pdf */
	window.open('/Equipment/exportToPdf/' + id + '/', '_blank');
}