|<script language ="javascript" type="text/javascript">//  var appmenu = new AppMenuView();

                    // appmenu.render('context');

                     var _url = 'http://localhost:14145/Menu/GetMenuFatherTree';
                    // _url="menu.ashx?model=0";

                     var tree = new Ext.tree.TreePanel({
                         id: 'selectTree',
                         plugins: new NodeMouseoverPlugin(),
                         height: 200,
                         autoScroll: true,
                         split: true,
                         loader: new Ext.tree.TreeLoader({ url: _url
                         , listeners: {
                             "loadexception": function(loader, node, response) {
                                 node.loaded = false;
                                 node.reload.defer(10, node); //不停的加载，直到true
                             }
                         }
                     }),
                         root:
                         new Ext.tree.AsyncTreeNode({
                           expanded: true
                          }),
                         rootVisible: false,
                         requestMethod: "GET"
                     });

                     tree.on(