Kragen Sitaker wrote: > I had to look up 'imbricate', and I think you mean 'nest'; is that > right? yes, sorry for my poor frenglish ;-) -- Jerome ALET - alet at unice.fr - http://cortex.unice.fr/~jerome Faculte de Medecine de Nice - http://noe.unice.fr - Tel: 04 93 37 76 30 28 Avenue de Valombrose - 06107 NICE Cedex 2 - FRANCE