[eluser]ciGR[/eluser]
OverZealous, thank you very much.It's all ok now!
For the second part of my question,I see the deep Relationships, very useful, but I show you the three level hierarchy for example, I really mean if exist some easy way to get the hierarchy for an arbitrary number of levels, or I must to create my own function like the one I present(not tested,just for show you what I mean) above.