Multilanguage content

[eluser]Rospo[/eluser]
Hello everybody!
I would like to know if CI can manage different language content to complete the multilanguage function.
So, for example, i create the table post with all the information and i generate the mvc for this item.
Now, my web site should be in english, spanish and french.
How can i give to the admin and to the author of the post the capacity to insert an article in english (default language) and then translate it in the other language?
And how can i show to the user only the content of his language? Even better, if i am spanish and there is the spanish version of a post i should read the spanish version. If there is not, i should see the english version!
Can CI help me for this?
Thanks!!!