Keyboard Navigation between Input Fields using JQuery: up/down key

key_navigation.js

// Need dom_element_find.js
// https://gist.github.com/xuncheng/8219581
jQuery(document).ready(function(){
  $('input[type=text]()').bind('keyup', function(evt) {
    if (evt.keyCode == 40) {
      // down key
      var target = $('input[type=text]()').elementAfter(this)
      if (target) {
        target.focus();
      }
    } else if (evt.keyCode == 38) {
      // up key
      var target = $('input[type=text]()').elementBefore(this)
      if (target) {
        target.focus();
      }
    }
  });
});