// AUTO AGE UPDATER //
/////////////////////

// NOTE : Requires jQuery
/////////////////////

$(document).ready(function() {
// Get today's date
var today = new Date();
var currentYear = today.getFullYear();
var month = today.getMonth()+1;
var day = today.getDate();

// Enter your birth infos here
var myMonth =   // INTEGER : Your birth month
var myDay =     // INTEGER : Your birth day
var myYear =    // INTEGER : Your birth year

// auto calculation
var age = currentYear - myYear - 1;

if (month > myMonth) {
    age++
}

else if(month == myMonth && day >= myDay) {
    age++
}

// Give a class="age" to the element you want your auto updating age to display in
$('.age').text(age + " years old");
});