On 05/05/2011 01:02 PM, Jean-Marc Liger wrote: >> by assuming that the _x and _y imply that the code is built on, you >> already dont know what you are talking about > > Ok, I assume that say that _x and _y having been built on different > instances would have been a more correct assertion, but after saying > that, doesn't the difference between these two instances still remains. that depends on how you define 'instances' - KB