Helping People who have out their request for help in a different language

Hi everyone. What do you do when someone puts to their topic or reply in a different language.

Just put it through a translate program, and your answer in the same way.

How do you do that? Is there like a system?

Search for Google Translate.
Put the original text in the left box, the automatically translated text will appear in the right box

But say theres a topic posted thats in a completely different language. What would i do then?