hi,
i want to make to extra field like this:
in first field when user choose "1" ( in drop box)
in second field(drop box) will show 1.1 , 1.2 ,1.3 , ....
and if user choose "2" in first field in second field will show 2.1,2.2,2.3,...
and ....
i mean i want to make two related field that , when user select first field second field will fill.
who can i make it,
