String Panel and Multi language interface


i would like to have a multi language flash animation.
for that i use String Panel and Dynamic texts.

in the help it is written the following thing to have a custom control on language selection.

import mx.lang.Locale;
Locale.addXMLPath("langcode", "url/langcode/flaname_langcode.xml");

this is 1 issue : mx.lang.Locale does not exist as library.

as my flash animation will be on internet, user should be able to select alone the default language.
is there someone here who has experience with this topic ?

thanks a lot,