var root = new Ext.tree.AsyncTreeNode({
        id: "0",
        leaf: false,
        text: "",
        expandable: true,
        expanded: true
    });

    var loaderMeasureTree = new Ext.tree.TreeLoader({
        clearOnLoad: true,
        dataUrl: '',
        animate: true,
        method: 'POST',
        preloadChildren: true,
        baseAttrs: { uiProvider: Ext.tree.TriStateNodeUI, checked: false }
    });

    var measureItemTree = new Ext.tree.TreePanel({
        animate: true,
        root: root,
        loader: loaderMeasureTree, 
        singleExpand: false,
        iconCls: "icon-tree",
        autoLoad: false,
        rootVisible: false,
        autoScroll: true,
        allowDomMove: true,
        height: 300,
        frame: true,
        collapsed: false,
        collapseFirst: true,
        border: false
    });