You're job is safe, ma'am. Your sons, however ...

In two days time it will be Queen Elizabeth's 80th birthday. Most 80 years olds are long retired, but not that trouper the Queen.

For the first time, after midnight in the heart of London, rehersals have been held for the Queen's funeral. As happened for her mother when she reached about that age, a mock funeral march has been staged. They'll do it every year. In the case of the Queen Mother, they'd had lots of practice by the time she died at 101.

But the Queen displays similarly robust health to her mother and there's no sign of her standing down. But when Australia's Prime Minister John Howard stated during her latest trip to Australia during the Melbourne Commonwealth Games, "I don't believe Australia will become a republic while the Queen is on the throne. Beyond that, I don't know", the code appeared that this may be her last visit. But please let's not have any more visits from Charles. His 2005 visit was lacking in crowd-pulling power and plain dull.

The common view is that it will be the death of the Queen and ascension of Prince Charles that will trigger another push within Australia for a republic. When the Queen dies or steps down, that will change things because there is a reservoir of goodwill for the Queen which there isn't for Prince Charles. It would be much better and more dignified to see the debate happen well before such an event.

Happy birthday for 21 April - and three cheers to the coming republic!