Can I call a function that is in a different script?

[Victor Eijkhout]

Suppose I have a function defined in some field's script. Can I call 
it from a handler in another field's script?

(I tried finding this in the docs, but no luck. "Function" doesn't 
seem to appear in the development guide, at least for as far as I 
could discern. I couldn't figure out how to search through the 
development guide.)
-- 
Victor Eijkhout <eijkhout at cs.utk.edu>
tel: 865 974 9308 (W), 865 673 6998 (H), 865 974 8296 (F)
http://www.cs.utk.edu/~eijkhout/