jQuery UI Sortable Between Tabs

sortable_between_tabs.css

#sortable1 li, #sortable2 li { margin: 0 5px 5px 5px; padding: 5px; font-size: 1.2em; width: 120px; }

sortable_between_tabs.html

<div id="tabs">
  <ul>
    <li><a href="#tabs-1">1. Složka</a></li>
    <li><a href="#tabs-2">2. Složka</a></li>
  </ul>
  <div id="tabs-1">
    <ul id="sortable1" class="connectedSortable ui-helper-reset">
      <li class="ui-state-default">Item 1</li>
      <li class="ui-state-default">Item 2</li>
      <li class="ui-state-default">Item 3</li>
      <li class="ui-state-default">Item 4</li>
      <li class="ui-state-default">Item 5</li>
    </ul>
  </div>
  <div id="tabs-2">
    <ul id="sortable2" class="connectedSortable ui-helper-reset">
      <li class="ui-state-highlight">Item 1</li>
      <li class="ui-state-highlight">Item 2</li>
      <li class="ui-state-highlight">Item 3</li>
      <li class="ui-state-highlight">Item 4</li>
      <li class="ui-state-highlight">Item 5</li>
    </ul>
  </div>
</div>

sortable_between_tabs.js

$(function() {
    $( "#sortable1, #sortable2" ).sortable().disableSelection();
 
    var $tabs = $( "#tabs" ).tabs();
 
    var $tab_items = $( "ul:first li", $tabs ).droppable({
        accept: ".connectedSortable li",
        hoverClass: "ui-state-hover",
        drop: function( event, ui ) {
            var $item = $( this );
            var $list = $( $item.find( "a" ).attr( "href" ) )
                .find( ".connectedSortable" );
 
            ui.draggable.hide( "slow", function() {
                $tabs.tabs( "option", "active", $tab_items.index( $item ) );
                $( this ).appendTo( $list ).show( "slow" );
            });
        }
    });
});