zTree v3.1获取选中节点的值并赋给隐藏域

function onCheck(e, treeId, treeNode) {
   var zTree = $.fn.zTree.getZTreeObj("testtree"),
   nodes = zTree.getCheckedNodes(true),
   v = "";
   for (var i=0, l=nodes.length; i<l; i++) {
    v += nodes[i].name + ",";
    alert(nodes[i].id);   //获取选中节点的id值
    document.getElementById('test').value=nodes[i].id;
   }
   if (v.length > 0 ) v = v.substring(0, v.length-1);
   var cityObj = $("#citySel");
   cityObj.attr("value", v);
  }

 

 

<input type="hidden" name="test" id="test">

 

....

<div id="menuContent" class="menuContent" style="display:none; position: absolute;">
 <ul id="testtree" class="ztree" style="margin-top:0; width:280px; height: 300px;"></ul>
</div>