function number_format( number, decimals, dec_point, thousands_sep ) {
	var n = number, prec = decimals;
	n = !isFinite(+n) ? 0 : +n;
	prec = !isFinite(+prec) ? 0 : Math.abs(prec);
	var sep = (typeof thousands_sep == "undefined") ? ',' : thousands_sep;
	var dec = (typeof dec_point == "undefined") ? '.' : dec_point;
	var s = (prec > 0) ? n.toFixed(prec) : Math.round(n).toFixed(prec); //fix for IE parseFloat(0.55).toFixed(0) = 0;
	var abs = Math.abs(n).toFixed(prec);
	var _, i;
	if (abs >= 1000) {
		_ = abs.split(/\D/);
		i = _[0].length % 3 || 3;
		_[0] = s.slice(0,i + (n < 0)) +
		_[0].slice(i).replace(/(\d{3})/g, sep+'$1');
		s = _.join(dec);
	} else {
		s = s.replace('.', dec);
	}
	return s;
}