JQuery apply input mask to field onfocus and remove onblur so to avoid problems with placeholder text

Question

I have a date of birth text field:

I\'m using a jQuery plug

Answer 1

Reading the plugin code, it should be possible to do this (untested):

(function($) {
  $(document).ready(function() {
    $('#dob').focus(function() {
      $.mask.definitions['~']='[+-]';
      $(this).mask('99/99/9999');
    }).blur(function() {
      $(this).unmask();
    });
  });
})(jQuery);

Note that I added (function($){})(jQuery) - I believe it is good practice to wrap all your code this way.