var today = new Date();
var dd = today.getDate();
var mm = today.getMonth()+1; //January is 0!
var yyyy = today.getFullYear();

if (dd < 10) {
    dd = '0'+dd
}

if (mm < 10) {
    mm = '0'+mm
}

function add_x_months(old_date, num_months_to_add) {
    var date_string_list = old_date.split("/");
    console.log(date_string_list);
    var current_year = parseInt(date_string_list[2]);
    var current_date = parseInt(date_string_list[0]);
    var current_month = parseInt(date_string_list[1]);
    console.log("The current year is " + current_year);
    console.log("The current month is " + current_month);
    var num_months = parseInt(num_months_to_add);
    var years_to_add = Math.floor((num_months + current_month - 1) / 12);
    if (current_month == 2 && current_date == 29 && years_to_add > 0) {
        if ((current_year + years_to_add) % 4 != 0) {
            current_date = 28;
        }
    }
    var new_year = current_year + years_to_add;
    var new_date = current_date;
    if (num_months % 12 == 0 && current_month == 12) {
        var new_month = current_month;
    }
    else {
        var new_month = (current_month + num_months) % 12;
    }
    var new_date_string = new_date + '/' + new_month + '/' + new_year;
    return new_date_string;
}

// today = dd + '/' + mm + '/' + yyyy;
// console.log(today);
today = '29/02/2017';
console.log(today);
var new_date = add_x_months(today, 24);
console.log(new_date);