var treeConfig = [{
    nodeType: 'async',
    text: "Oblique Photo Points",
    expanded: true,
    children: [{
        text: '1976 Photo Points',
        layerStore: mapPanel.layers,
        leaf: false,
        expanded: true,
        nodeType: 'gx_overlaylayercontainer',
        loader: {
            filter: function (record) {
                return record.get("layer").options.group === "1976photos"
                },
            baseAttrs: {
                radioGroup: "foo",
                uiProvider: "layernodeui"
            }
        }
    }, {
        text: '2007 Photo Points',
        layerStore: mapPanel.layers,
        leaf: false,
        expanded: true,
        nodeType: 'gx_overlaylayercontainer',
        loader: {
            filter: function (record) {
                return record.get("layer").options.group === "2007photos"

            },
            baseAttrs: {
                radioGroup: "foo",
                uiProvider: "layernodeui"
            }
        }
    }]
}, {
    nodeType: 'async',
    text: "ShoreLine Classification",
    expanded: true,
    children: [{
        text: '1976 Shoreline Inventory',
        layerStore: mapPanel.layers,
        leaf: false,
        expanded: true,
        nodeType: 'gx_overlaylayercontainer',
        loader: {
            filter: function (record) {
                return record.get("layer").options.group === "1976shoreline"
            },
            baseAttrs: {
                radioGroup: "foo",
                uiProvider: "layernodeui"
            }
        }
    }, {
        text: '2007 Shoreline Inventory',
        layerStore: mapPanel.layers,
        leaf: false,
        expanded: true,
        nodeType:'gx_overlaylayercontainer',
        loader: {
            filter: function (record) {
                return record.get("layer").options.group === "2007shoreline"
            },
            baseAttrs: {
                radioGroup: "foo",
                uiProvider: "layernodeui"
            }
        }
    }]
}, {
    nodeType: "gx_baselayercontainer",
    expanded: true
}];