jquery treeviewの使用時、問題は1つだけ表示されます

			 	$("#categorys").treeview({
					persist: "location",
					control: "#treecontrol",
					unique: true
				});//     			 	



$("#categorys").treeview({
					control: "#treecontrol",
					persist: "cookie"
				});
		  	});//     .



		                <div class="areaBody">
							<div id="treecontrol">
								[<a href="#">Collapse</a>]&nbsp;[<a href="#">Expand</a>]&nbsp;[<a href="#">Toggle</a>]
							</div>
				            <ul id="categorys">
				             	<li id="root">
				             	</li>
				            </ul>
		               	</div> 		  	});