Question

i have form register using rails..
So basically I need to make feature that if you type ID on Field ID, it will be automatically

If you type in the ID field

• The first 4 digits directly (automatically) to generate to year
• The next 2 digits will be directly (automatically) to generate to month
• The next 2 digits will be directly (automatically) to generate to date

i use datepicker for date field..
on _form.html.erb

<div class="field">
    <%= f.label :id, "ID" %><br />
    <%= f.text_field :id %>
  </div>
  <div class="field">
    <%= f.label :dob, "Date Of Birth (YY-MM-DD)" %><br />
    <%= f.text_field :dob %>
</div>

users.js.coffee

 jQuery ->
  $('#user_tanggallahir').datepicker({ dateFormat: 'yy-mm-dd' })

i want type on field automatically of date..

Update

i have javascript such as http://jsfiddle.net/f8rUF/10/
but, i want format of date (dob) field such as 1990-01-12 (YY-MM-DD)

Hope you can help me with this ;)!

Answer 1

Update Solved..

i use substring to get 8 string

st = (v.substring(0,8))

http://jsfiddle.net/f8rUF/19/