Thanks for the replies to my query.

Sorry not to have responded sooner, but I only got back from a trip to New Zealand 48 hours ago, been there for a couple of weeks, and was horrified to see the TV coverage of the carnage in Christchurch. Mel & I were there only 4 days before the latest quake. Those poor people, they had done a mighty job of cleaning up from the big quake last year, but a lot of scars were still visible. Now the destruction to already weakened buildings is horrific. Buildings that we walked thru, only days before destroyed. Sobering thought.
Eddie