#
# NEED_PARMS onoff
#
# HELP: SYNOPSIS:    
# HELP:     generic/menu/ovlonly 0/1
# HELP:
# HELP: DESCRIPTION:
# HELP:     Set/Reset overlay-only.
#
IF  ${$argv[1]=="0"} GREYMARK 0 -1 -1
IF  ${$argv[1]=="1"} GREYMARK 0 0 65535
