Questions on audio/video tests

Hi Kai,

I’m looking at the audio and video tests, and I'm having trouble finding
references to some of the functions it uses:
• where are defined the Audio() and Video() constructors? (in
particular, Firefox 3.5 seems to choke on that constructor, although it
looks like it is supposed to support it)

• what is the function findMediaFile? where is it defined?

Thanks,

Dom