problem s kniznicou jquery – jquery.dynatree.js

Ahojte,
mam jeden problem s kniznicou jquery.dynatree.js
snazim sa na stranku vlozit strom kniznice jquery.dynatree.js
nalinkujem

<link rel="stylesheet" id="skinSheet" href="{$baseUri}/css/ui.dynatree.css" type="text/css">
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script type="text/javascript" src="{$baseUri}/js/jquery/jquery.dynatree.js"></script>
<script type="text/javascript" src="{$baseUri}/js/jquery/jquery.cookie.js"></script>
<script type="text/javascript" src="{$baseUri}/js/jquery/jquery-ui.custom.js" ></script>

a vyhodi mi chybu

SCRIPT438: Objekt nepodporuje vlastnosť alebo metódu widget
jquery.dynatree.js, riadok2705 znak1

SCRIPT5007: Nedá sa získať hodnota vlastnosti nodedatadefaults: objekt má hodnotu null alebo nie je definovaný
realvea_sk, riadok313 znak5

pricom do html stranky vlozim

 <div id="tree2" >
 </div>

  $.ui.dynatree.nodedatadefaults["icon"] = false; // Turn off icons by default
    $("#tree2").dynatree(
    {
        checkbox: true,
        selectMode: 3,
        children: treeData,
        fx: { height: "toggle", duration: 200 } ,
        autoCollapse: false,

        onSelect: function(select, node)
        {
          // Display list of selected nodes
          var selNodes = node.tree.getSelectedNodes();

          // convert to title/key array
          var selKeys = $.map(selNodes, function(node)
          {
          var idecka = "[" + node.data.key + "]";
            return idecka;
          } );

          $("#echoSelection1").text(selKeys.join(", ") );
       } ,
       onClick: function(node, event)
       {
        // We should not toggle, if target was "checkbox", because this
        // would result in double-toggle (i.e. no toggle)
        if( node.getEventTargetType(event) == "title" )
        node.toggleSelect();
      } ,
      onKeydown: function(node, event)
      {
        if( event.which == 32 )
        {
        node.toggleSelect();
        return false;
        }
      } ,
       // The following options are only required, if we have more than one tree on one page:
        cookieId: "dynatree-Cb1",
        idPrefix: "dynatree-Cb1-"
   } );
   		$("#btnDeselectAll").click(function() {
			$("#tree2").dynatree("getRoot").visit(function(node) {
				node.select(false);
			} );
			return false;
		} );
  		$("#btnSelectAll").click(function() {
  			$("#tree2").dynatree("getRoot").visit(function(node) {
  				node.select(true);
  			} );
  			return false;
  		} );
		<!-- Start_Exclude: This block is not part of the sample code -->
	/*	$("#skinCombo")
		.val(0) // set state to prevent caching
		.change(function() {
			var href = "../src/"
				+ $(this).val()
				+ "/ui.dynatree.css"
				+ "?reload=" + new Date().getTime();
			$("#skinSheet").attr("href", href);
		} );          */
		<!-- End_Exclude -->
      $('#imgclose').live("click", function() {
      var tree = document.getElementById('nav-tree2');

      tree.style.display= "none";
      } );