what's the 'DISP' command?

[clomaka]

I'm tracking down stuff and noticed that some mods (I'm looking at you, Babylon 5 mod) use the DISP command:

PAGE 2
ACTN popup break
DISP 1
GFXP items/l_dust.tga
TITL Dust Trafficing
TEXT You have been warned...
ENMY earthalliance
END PAGE

I can't find any reference to what it does, and things work just as well without it (i think). It's worked it's way into my mod, probably just from copy-pasting quest bits, but I was hoping to verify what it does/doesn't do before wholesale removing it.