[Haskell-cafe] Converting Emacs syntax coloured Haskell code to HTML

I noticed many code snippets on the wiki that have syntax colouring. How is this done? Can I convert syntax coloured code from Emacs to HTML? I'm using the Haskell mode for Emacs to get the syntax colouring. I'm writing a "monads for C# programmers tutorial" (oh nooooooooo) and would like to use this feature. Of course I won't publish this tutorial before sending it to this mailing list, because when a newbie writes a tutorial, it is usually a disaster ;-) But the feedback I get from this community is super handy (that is when it is not PhD talk which I don't understand ;), so I guess comments on this tutorial will give me a better understanding. Thanks, Peter