You can achieve something similar to what you want using Stories.
You could set up a story for each language, then all you need would be a link to it from your homepage - the link to be written, of course, in the relevant language.
For example (in its simplest form):
Press here for Spanish (Espana)
Press here for Arabic (.....)
Press here for French (Francais)
etc.
etc.
The story page could then be displayed in its own page so you could switch between easily.
See my homepage (listed below) to get an idea.
Regards,
Ian Marr