OK, here we go.
as you can see, the second SELECT MENU dont get the relation code like that  etc.
By the way I dont know how to create that dynamic boxes :-(
the PHP code in the HEAD is created, but the second select menu (GENDER) dont gets updated with the php code like the first one (SIZE).
and, as you can see, I got that ASTERIXes even if I dont handcode the code :-(