is this even possible? I get an 'unknown token $functionname' error when trying to. Do I need to make the function I want to call from within the function global? If yes, how do I do this?
(http://t2.gstatic.com/images?q=tbn:ANd9GcTn4NDx76nSnoUKIYHHlt_hnHLNhzHsCBzeYO6VjJp8sHa57efS7-ZcGDU)
Not sure what you're trying to do; calling a function from within another function is of course possible, the important thing here is scope i.e. the function you're trying to call must have been declared already or must have been imported in the header if it is in another script.
Could you post the code you're using? Are you using any additional scripts / modules?
In other words, you should make sure that function you are calling is positioned BEFORE the function you call it from.
10 PRINT "THANKS, THIS WORKS!"
20 GOTO 10
RUN :D