Reg : standard texts in scripts

hi,

when I created a standard text in so10 and included in window ...

I got the sysntax as follows

INCLUDE Z_BP_FOOTER OBJECT TEXT ID ADRS

and when I executed the script..I got the output.

But what my question is...When I checked already exisiting form(which I Have to

modify now) the syntax is as follows

INCLUDE &REGUD-TXTFU& OBJECT TEXT ID ADR

what is the difference between these two..and

Iam confused as which method i should follow?

I came to know that REGUD is a structure and TXTFU is the field.

plz let me know if anyone has worked on this syntax

INCLUDE &REGUD-TXTFU& OBJECT TEXT ID ADR

waiting for your answers

Regards

Vaja