ZedSeries LanguageMenu is a frontend module that displays a language menu so the user can switch between languages (in the same domain) easily.
ZedSeries LanguageMenu is released under the the Creative Commons Attribution Share Alike 3.0 License, which permits both private and commercial use.
you must put a backlink to zedseries.com into a page linked from the home or in the layout of your website, using the following form:
you must leave intact every user interface element pointing to http://www.zedseries.com and every reference to zedseries.com (e.g. powered by logo).
If the above conditions are not suitable for you, please contact me to get more informations on obtaining another kind of license.