chklines() { chkint ${1} ${2} && (( ${2} >= 0 )) && (( ${2} <= ${MAX_LINES} )) && return 0 ROW_NBR="24" COL_NBR="1" eval addstr \"${CMD_MOVE}\" && clrtoeol && addstr "${1}: Invalid line number" >&2 && refresh && ${ERROR_PAUSE} && eval addstr \"${CMD_MOVE}\" && clrtoeol && refresh return 1 }