Website language translation

[eluser]OJ[/eluser]
I need to provide multi-language support for my website. Does anyone have experience with this. I am more interested in solutions that can be indexed in the translated languages.
Any help will be greatly appreciated.
I also read some documents about Google gtranslate . Has anyone used it to achieve multi-language switch for a website.
I am open to any good solutions that I can integrate into my codeigniter based wesbite

Thanks
OJ
http://www.ojpeters.com