Dear listers, The previous message was meant to go off list as requested. My mistake. Joao Pereira -- ------------------------------------------------------------- Joao M.F. Pereira (jpereira@ipimar.pt) Tel.: Direct + 351 213027044 Exchange + 351 213027000 FAX: + 351 213015948 Mail: INIAP/IPIMAR Av. Brasilia, s/n 1400-038 Lisboa Portugal Lab.Web.: http://ipimar-iniap.ipimar.pt/ ------------------------------------------------------------