Moving a focus when the input text field reaches a max length

Question

I do have a credit card number form. The number is divided into four parts just as on a real credit card.

I want to add a JavaScript taste to the form where when a u

Answer 1

I haven't used this tool before, but it does what you want. You could just look at it's source to get some ideas:

This Plugin on GitHub

For your situation, you would add this code: