jQuery UI is included in Drupal 7 core. By default it is not included in every page, so if u want to implement those jQuery UI features, here is the little tricks you need.

For example, i will to implement the jQuery UI tabs in a node body. In that case, you need to use PHP code as the input text format. ex.

<?php
  drupal_add_library('system', 'ui.tabs');
  drupal_add_js('jQuery(document).ready(function(){jQuery("#tabs").tabs();});', 'inline');
?>

<div id="tabs">
  <ul>
    <li><a href="#tabs-1">Nunc tincidunt</a></li>
    <li><a href="#tabs-2">Proin dolor</a></li>
    <li><a href="#tabs-3">Aenean lacinia</a></li>
  </ul>
  <div id="tabs-1">
    <p>Proin elit arcu, rutrum commodo, vehicula tempus, commodo a, risus. Curabitur nec arcu. Donec sollicitudin mi sit amet mauris. Nam elementum quam ullamcorper ante. Etiam aliquet massa et lorem. Mauris dapibus lacus auctor risus. Aenean tempor ullamcorper leo. Vivamus sed magna quis ligula eleifend adipiscing. Duis orci. Aliquam sodales tortor vitae ipsum. Aliquam nulla. Duis aliquam molestie erat. Ut et mauris vel pede varius sollicitudin. Sed ut dolor nec orci tincidunt interdum. Phasellus ipsum. Nunc tristique tempus lectus.</p>
  </div>
  <div id="tabs-2">
    <p>Morbi tincidunt, dui sit amet facilisis feugiat, odio metus gravida ante, ut pharetra massa metus id nunc. Duis scelerisque molestie turpis. Sed fringilla, massa eget luctus malesuada, metus eros molestie lectus, ut tempus eros massa ut dolor. Aenean aliquet fringilla sem. Suspendisse sed ligula in ligula suscipit aliquam. Praesent in eros vestibulum mi adipiscing adipiscing. Morbi facilisis. Curabitur ornare consequat nunc. Aenean vel metus. Ut posuere viverra nulla. Aliquam erat volutpat. Pellentesque convallis. Maecenas feugiat, tellus pellentesque pretium posuere, felis lorem euismod felis, eu ornare leo nisi vel felis. Mauris consectetur tortor et purus.</p>
  </div>
  <div id="tabs-3">
    <p>Mauris eleifend est et turpis. Duis id erat. Suspendisse potenti. Aliquam vulputate, pede vel vehicula accumsan, mi neque rutrum erat, eu congue orci lorem eget lorem. Vestibulum non ante. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Fusce sodales. Quisque eu urna vel enim commodo pellentesque. Praesent eu risus hendrerit ligula tempus pretium. Curabitur lorem enim, pretium nec, feugiat nec, luctus a, lacus.</p>
    <p>Duis cursus. Maecenas ligula eros, blandit nec, pharetra at, semper at, magna. Nullam ac lacus. Nulla facilisi. Praesent viverra justo vitae neque. Praesent blandit adipiscing velit. Suspendisse potenti. Donec mattis, pede vel pharetra blandit, magna ligula faucibus eros, id euismod lacus dolor eget odio. Nam scelerisque. Donec non libero sed nulla mattis commodo. Ut sagittis. Donec nisi lectus, feugiat porttitor, tempor ac, tempor vitae, pede. Aenean vehicula velit eu tellus interdum rutrum. Maecenas commodo. Pellentesque nec elit. Fusce in lacus. Vivamus a libero vitae lectus hendrerit hendrerit.</p>
  </div>
</div>

Check it out.

 

If you want to include other jQuery UI features, you need to include different system libraries. Here is the complete list.

// Include all features by one line of code
drupal_add_library('system', 'ui');

// OR only include those u need
drupal_add_library('system', 'ui.accordion');
drupal_add_library('system', 'ui.autocomplete');
drupal_add_library('system', 'ui.button');
drupal_add_library('system', 'ui.datepicker');
drupal_add_library('system', 'ui.dialog');
drupal_add_library('system', 'ui.draggable');
drupal_add_library('system', 'ui.droppable');
drupal_add_library('system', 'ui.mouse');
drupal_add_library('system', 'ui.position');
drupal_add_library('system', 'ui.progressbar');
drupal_add_library('system', 'ui.resizable');
drupal_add_library('system', 'ui.selectable');
drupal_add_library('system', 'ui.slider');
drupal_add_library('system', 'ui.sortable');
drupal_add_library('system', 'ui.tabs');
drupal_add_library('system', 'ui.widget');

Done =)

Reference:

• Dan Silver’s Blog – jQuery UI Tab’s in Drupal 7 Tutorial
• Drupal API – system_library