Total index of list

so…what i don’t know how to do now is this thing:

i have an xml file, that has lets say n nodes. in the .fla file, i have a list, that is bound to the xml schema, taking the name from each of the node. i have some AS scripted to this list, which includes the total number of fields. how do i get that number, as a general (like n, or totalIndex [dunno if exists], not a number) ?

help please

cheers