$(document).ready(
		function() {
			window.onbeforeunload = confirmExit;
			// prevent submit by enter press
			lockEnter();
			$("#value").change(function(e){
			    $(this).val(FormatNumber($(this).val()));
			});
		}
		);
var check_form_ = check_form;


check_form = function(formname) {
	window.onbeforeunload = null;
	if (check_form_(formname) == false) {
		window.onbeforeunload = confirmExit;
		
		return false;
	} else {
		//$('#value').val(UnformatNumber($('#value').val()));
		return true;
	}
	return false;
	
};
function confirmExit() {
	return "";
}

function lockEnter() {
	// prevent default

	$(window).keydown(function(event) {

		if (event.keyCode == 13 && $(":focus").prop('tagName')!='input') {

			event.preventDefault();
			return false;
		}
	});
}

function FormatNumber(number, precision) {

	var precision = precision == 0 || precision ? precision : 2;

	// make string..
	number = number + '';
	var minus = false;
	if (number.charAt(0) == '-') {
		minus = true;
		number = number.slice(1);
	}
	number = number.replace(',', '.');
	// round
	number = toFixed(number, precision);

	// add 1000 sep
	var tmp = number.split(".");
	var c = '';
	for (var i = tmp[0].length; i != -1; i--) {
		c += tmp[0].charAt(i);
		if ((tmp[0].length - i) == 0 || i == 0)
			continue;
		if ((tmp[0].length - i) % 3 == 0)
			c += '.';
	}
	// reverse c
	c = c.split("").reverse().join("");
	if (minus)
		c = '-' + c;
	return precision == 0 ? c : c + ',' + tmp[1];
}
function UnformatNumber(number) {
	if (!number)
		number = 0;
	// make string..
	number = number + '';
	// remove 1000 sep
	number = number.replace('.', '');
	// change ',' to '.'
	number = number.replace(',', '.');

	return parseFloat(number);
}

// round with precision
function toFixed(value, precision) {
    var precision = precision || 0,
         neg = value < 0, power = Math.pow(10, precision),
         value = Math.round(value * power),
         integral = String((neg ? Math.ceil : Math.floor)(value / power)),
         fraction = String((neg ? -value : value) % power),
         padding = new Array(Math.max(precision - fraction.length, 0) + 1).join('0');
         //fix problem with Math.floor and Math.ceil with result zero (lose sign)
         if (neg && integral=="0")
              integral='-'+integral;
    return precision ? integral + '.' + padding + fraction : integral;
}