Calling a function from a includded swf


I have a main movie (main.swf) and in their I include a other swf (home.swf).

I have a function in the main.swf that I wanna call from the included swf(home.swf), but it won’t want to work.

I have tried everything, from _root.fucntionName, _parent.fucntionName but nothin gis working

thnx in advance