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<!-- START classifieds:bootstrap_base/loan_calculator.tpl -->
<div class="loanCalculator">
	<script type="text/javascript" >
		var decimalSeparator = ',';
		

		function validate(str)
		{
			regex = new RegExp('^[-+]?[0-9]+(\\'+decimalSeparator+'([0-9]+)?)?$');
			return regex.test(str);
		}

		function getValidatedAndNormalizedValueOrFalse(field, event, defaultValue)
		{
			if (field.value == '' && event.keyCode != 8 && event.keyCode != 46)
				field.value = defaultValue;
			if (field.value == '')
				return false;
			if (!(validate(field.value)))
			{
				field.style.background = "#FF6666";
				return false;
			}
			else
			{
				field.style.background = "white";
			}
			return field.value.replace(decimalSeparator, '.');
		}

		function calculate (obj, event)
		{
			var rate = getValidatedAndNormalizedValueOrFalse(obj.rate, event, 5);
			if (!rate) return;

			var term = getValidatedAndNormalizedValueOrFalse(obj.term, event, 12);
			if (!term) return;

			var type = obj.choice[0].value;
			if (obj.choice[1].checked)
				type = obj.choice[1].value;
			if (type == 'MP')
				calculateMP (obj, event, rate, term);
			else
				calculateLA (obj, event, rate, term);
		}

		function calculateMP (obj, event, rate, term)
		{
			var amount = getValidatedAndNormalizedValueOrFalse(obj.amount, event, 50000);
			if (!amount) return;

			rate = rate / 100;
			var payment = amount * (rate / 12) / (1 - Math.pow ((1 + rate/12), -term));
			payment = Math.round (100 * payment) / 100;
			obj.payment.value = payment.toString().replace('.', decimalSeparator);
		}

		function calculateLA (obj, event, rate, term)
		{
			var payment = getValidatedAndNormalizedValueOrFalse(obj.payment, event, 4280.37);
			if (!payment) return;

			rate = rate / 100;
			var amount = payment * (1 - Math.pow ((1 + rate/12), -term)) / (rate / 12);
			amount = Math.round (amount);
			obj.amount.value = amount.toString().replace('.', decimalSeparator);
		}
	
	</script>
	<div class="alert alert-warning">Пожалуйста, используйте "," в качестве разделителя дробной части.</div>
	<form  name="LoanCalculator" action="" >
		<table class="form table table-responsive">
			<tr>
				<td>
					<label><input type="radio" name="choice" value="MP" checked="checked" /> Месячный платеж</label>
				</td>
				<td>
					<label><input type="radio" name="choice" value="LA" /> Размер займа</label>
				</td>
                <td>&nbsp;</td>
			</tr>
			<tr>
				<td>Срок займа:</td>
				<td><input type="text" name="term" onkeyup="calculate(LoanCalculator, event)" class="form-control" /></td>
                <td>месяцев</td>
			</tr>
			<tr>
				<td>Процентная ставка по займу:</td>
				<td><input type="text" name="rate" onkeyup="calculate(LoanCalculator, event)" class="form-control" /></td>
                <td>%</td>
			</tr>
			<tr>
				<td>Размер займа:</td>
				<td><input type="text" name="amount" value="190000" onfocus="LoanCalculator.choice[0].checked=true;LoanCalculator.choice[1].checked=false;" onkeyup="calculate(LoanCalculator, event)" class="form-control" /></td>
                <td> € </td>
			</tr>
			<tr>
				<td>Месячный платеж:</td>
				<td><input type="text" onfocus="LoanCalculator.choice[1].checked=true;LoanCalculator.choice[0].checked=false;" name="payment" onkeyup="calculate(LoanCalculator, event)" class="form-control" /></td>
                <td> € </td>
			</tr>
		</table>
	</form>
</div>

<!-- END classifieds:bootstrap_base/loan_calculator.tpl -->