Hi,
dont worry about your bad english because you are french, few months ago i started using a french php framework and since i like you french ppl more than i used to
the trick is done with the link_select_boxes method. The key field of the first table dont have to have the same name with the link field in the second table.
Syntax: link_select_boxes(parent_box_name, child_box_name,
link_field_name, selected_value)
in your case, the key in the first box is id_enterprise as defined in add_select_box method
calling link_select_boxes( box1, box2, 'id_annonceur', 2)
will do select id_campagne, name_campagne from campagne where id_annonceur=2
I hope my english was good enough so you could understand me
best regards
Panos