When you have your business relationships in different countries you may wish to publish the information on your site in several languages.
For creation multilingual website you as the site administrator should only specify what languages your site should support. The other work will be done by your webmaster and authors.
So, for the defining language realizations of your site you just click the “language realizations” button in the site settings window, select the language from a popup list and press “Add”. Your job is done. Now the site has several languages versions.