This function parses through pages that have Ogg download links and replaces them with a Play/Pause button. The button plays (and pauses) the Ogg file using Firefox 3.1's built in support for Ogg Vorbis.
The Oggulator can be activated by installing a small bookmarklet:
Clicking on the bookmarklet runs the function and gives you a nice page full of buttons to play Ogg. You will need one of the latest Firefox 3.1 builds for this to work.
The functionality in the script is rudimentary, and 3.1 is still in development, so don't expect it to be perfect. (I notice there is often a delay before playback starts for the first clip you play on a page, and I have had a few crashes and lock-ups).
This feature of the RNZ site is experimental at the moment, so I'm not able to offer support. It is primarily so people can test Firefox.
If anyone wants to add features or improve the function, I'll upload it (after reviewing the changes) so everyone can access them. webmaster at radionz dot co dot nz.
(NB: As at 2013 this feature is no longer supported.)