GeoExt Layer Tree: Showing BaseLayers and Overlay Layer

I was looking for GeoExt's tree example for my project, and I found official tutorials are kind of hard to understand for the GeoExt beginners. On Googleing through the internet, I found nice and easy way of creating tree  structure menu using GeoExt BaseLayer and Overlay layer tree.
Thanks for the post on http://thinkwhere.wordpress.com, a wordpress blog and patched  the screenshot here for my future reference.


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