for loop question

[bruce]

hi..

basic foor/loop question..

i can do:

 for a in foo
  print a

if i want to do something like
  for a, 2, foo
    print foo

where go from 2, to foo..

i can't figure out how to accomplish this... 

can someone point me to how/where this is demonstrated...

found plenty of google for for/loop.. just not this issue..

thanks

-bruce