Many thanks fer yer help. The derivative of the learning curve is a large positive number today.

Two last questions and I'm pretty sure that I know the answers ... which is generally how I get bit on the hiney from time to time ...

1.) If I am in a particular section of the main program and I call out a subroutine called, for example getthis: and in getthis: it calculates a variable called rxp2 and gives it a value of 7 (i.e. somehow rxp2=7 is generated), when I RETURN to the main program and use rxp2, does it still have the value 7 if it otherwise hasn't been modified? I think the term for this is global variable, where it matters not where in the program something is calculated, it carries that value everywhere in the program until modified somewhere else.

2.) Does it take up any more program space to call a variable s2 or supercalafragialisticexpialidotious2 ??? And are we limited in length on variable names?

(Or is there a place online where I can go to look up information like this rather than bugging you all afternoon?)

Jim