Select 2
Integrates the Select2 JavaScript library with Drupal, providing enhanced select form elements and field widgets for list fields and entity reference fields.
Tags
jquery
Clientside Validation
Adds client-side form validation to Drupal forms using data attributes and the jQuery Validation Plugin.
Superfish Dropdown Menu
Integrates the jQuery Superfish plugin with Drupal menus to create beautiful, accessible dropdown navigation menus.