getMenu

getMenu()
{
    while :
    do
        CNT_ANS="0"
        move "$(( ${1} * 2 + 6 ))" 41
        clrtoeol
        refresh
        LTC="$( getstr )"
        [[ "_${LTC}" = "_" ]] && LTC="0"
        [[ "_${LTC}" = "_0" ]] && reset_level && return ${LTC}
        [[ "_${LTC}" = *[!0-9]* ]] || continue
        (( ${LTC} < 0 )) && cnt_sleep "$(( ${LTC} * -1 ))"
        (( ${LTC} < 0 )) ||
          (( ${LTC} > ${1} )) &&
          continue
        break
    done
    set_level ${LTC}
    return ${LTC}
}