function getAge(dob_ddmmyyyy_format) {
        var date1 = new Date();
        var  dob= dob_ddmmyyyy_format
        var date2=new Date(dob);
        var pattern = /^\d{1,2}\/\d{1,2}\/\d{4}$/; //Regex to validate date format (dd/mm/yyyy)
       // if (pattern.test(dob)) {
            var y1 = date1.getFullYear(); //getting current year
            var y2 = date2.getFullYear(); //getting dob year
            var age = y1 - y2;           //calculating age 
            return age;
       // } else {
           // alert("Invalid date format. Please Input in (dd/mm/yyyy) format!");
        //    return false;
        //}

}

function getCalculatedDOBFromAge(age){
	var current_date = new Date();
	var current_year = current_date.getFullYear();
	var birthYear =  current_year -age;
	var calculatedBirthDate = new Date("01/01/"+birthYear);
	return calculatedBirthDate;
	
}