Invasion of the Body Switchers

Invasion of the Body Switchers from A List Apart:
> Since it was first released in 2001, Paul Sowden’s Style Sheet Switcher has been downloaded and used by thousands of designers and developers and has spawned many client-side and server-side adaptations.
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> Having used Paul’s script on numerous projects, I began to wonder how style-sheet switching could be extended to give users even more choices or accessibility enhancements, so I turned to my good friend Brothercake to make my ideas a reality and Invasion of the Body Switchers was born.