Activatables -- Make sets of elements active/inactive through anchors.
Copyright© 2009 Andreas Blixt
MIT license -
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Images courtesy NASA/JPL-Caltech. The endorsement of any product or service by Caltech, JPL or NASA is not claimed or implied.
Elakala Falls image is used with permission of Forest Waterfalls.
Water distribution image courtesy of USGS. The endorsement of any product or service by USGS is not claimed or implied.