Returning from a function

Hello again.

I have a function that plots a series and adds some interesting items to the 
plot.

Fair enough.

The last statement in the function is
return()

When the function is executed, NULL appears at the end, which is ok.
Is there any way to prevent NULL from appearing, or is that just as it 
should be, please?

thanks again,
Shamefacedly,
Laura Holt
R Version 2.1.0 Windows
mailto: lauraholt_983 at hotmail.com