Calculate Age based on Date of Birth in Dynamic CRM using javascript

Description:

In this example we explain that how to calculate age based on date of birth in dynamic crm using javascript.Auto Calculate Age based on Date of Birth in Dynamic CRM using javascript.i need to suto calculate age of the customer (contact entity) based on date of the birth.in this example when user change the date of birth at that time the age of the customer(contact) will be automatically calculated onchange of the date of birth event using javascript in dynamic crm.

you have to call this function on onload of the form & onchange of the birthdate so you can dynamically calculate your age as per birthdate.

Script:

function SetAge(birthdate) {

            var birthd = Xrm.Page.getAttribute("birthdate").getValue();

            if (birthd == null) {

                return;

            }

            var today = new Date().getFullYear();

            year1 = birthd.getFullYear();

            Xrm.Page.getAttribute("new_age").setValue(today - year1);

        }