HSLayers.Control.BoxLayerSwitcher
=================================
`HSLayers.Control.BoxLayerSwitcher
<http://www.bnhelp.cz/wwwlibs/hslayers/3.0/doc/symbols/HSLayers.Control.BoxLayerSwitcher.html>`_
is Google-like layer switcher. Layers are organized under buttons to
*groups of layers*. Each group can have many *overlay groups*.

http://dev.bnhelp.cz/wwwlibs/hslayers/branches/editace/examples/BoxLayerSwitcher.html

Example code:

.. literalinclude:: ../../../../../branches/hslayers-3.0/examples/BoxLayerSwitcher.html
    :linenos:
    :language: javascript
    :lines: 39-44