GetAge

gistfile1.js

var getAgeStr = function(dateString) {
	var myDate = new Date(dateString), 
		now = new Date(),
		month_of_birth=myDate.getMonth(),
		day_of_birht=myDate.getDay(),
		year_of_birth=myDate.getYear(),
		now_month = now.getMonth(),
		now_day = now.getDay(),
		now_year = now.getYear(),
		age = now_year - year_of_birth;
	if (now_month < month_of_birth) {
		age--;
	} else if ((now_month == month_of_birth) && (now_day < day_of_birht)) {
		age--;
		if (age < 0) {
			age = 0;
		}
	}
	return age;
}