Javascript and mobile

[SB65]

I realise this is probably a numpty question, but what's the state of play with mobile browser support for javascript, and are there any dos/don'ts regarding js on a mobile browser? Struggling to find anything very helpful via Google.

I am happily iPhone-and-everything-else free (waits for screams of anguish....) so am unfamilar with the impact of bad/good practice in this area.

(My other option is to pinch my 75 year old mother-in-law's iPhone, and that's probably best avoided)

[StevenHu]

Javascript works fine in mobile browsers. I would suggest going by best practices, which means to make sure they validate.