trigger firing order

[Hugo <htakada@xxxxxxxxx>]

Hi, how can I tell in which order are triggered different triggers on the same table, let me explain , 
I have three triggers for table A, all of then are intended for "before
insert" on the table, in ASA I can tell the Db in which order I want
the triggers to fire, is there an equivalent for postgres ??

thanks for your help

Postgres  8.0.4
Windows XP