function getAge(day, month, year) {

	var now = new Date();
	var ageString = '';

	var age = now.getFullYear() - year;
	var thisMonth = now.getMonth() + 1;

	if (age < 0) {
		age = 0;
	}
	else if (thisMonth < month || (thisMonth == month && now.getDate() < day)) {
		age -= 1;
	}

	if (age == 1) {
		ageString = "rok";
	}
	else if (age > 1 && age < 5) {
		ageString = "léta";
	}
	else {
		ageString = "let";
	}

	return "<div>Věk: " + age + "&nbsp;" + ageString + "</div>";
}