Using shipped version of jquery

The jQuery library packed with WordPress, operates under noConflict mode. Means you can not use $ in your jQuery snippet/code. Either use jQuery instead of $.

or use noConflict wrapper like this.

<script type="text/javascript">
  <!--
    jQuery(document).ready(function($) {

        // your jquery function, you can use $ here.

    });
  // -->
</script>