iil

  # echo "channel list:" $last_channel $channel_list
}

show_tag()
{
  # check if $current_tag is proper integer, otherwise set to 0
  
  if [ $current_tag -eq $current_tag 2> /dev/null ] ; then
  if [ $current_tag -ne $current_tag 2> /dev/null ] ; then
    # do nothing
  else
    current_tag=0
  fi

  # check if $current_tag is in range of $last_server..$last_channel
  # otherwise wrap to first ($last_server) or last item ($last_channel)
  
  if [ $current_tag -gt $last_channel ] ; then