# Tree using a GeoExt.tree.WMSCapabilitiesLoader

This example shows how to use GeoExt.tree.WMSCapabilitiesLoader to populate a tree with the hierarchical structure of a WMS GetCapabilities response. The example also shows how to customize the loader's `createNode` method to add a checkbox with a `checkchange` listener that adds and removes layers to and from the map.

See wms-tree.js for the source code.