I've developed a web application. It needs to be translated to languages other than English in the future, and ideally the translators shouldn't need to know HTML/JS/C++ to provide the translation. The server side of the web application is written in C++ and the majority of the localised text is in the HTML files.

My question is: What approaches are there to translating web applications? -

• Are there any existing tools that would enable a translator who doesn't understand HTML to translate a site?
• Should I write an application that extracts the localised text from a html file and can re-substitute translated text?
• Do you just provide the html file to your translators to be localised?

I'm aware the question isn't strictly programming related but the solution may involve programming and it may require some software engineering.