case "$1" in
*[uU][tT][fF]*)
  LANG=ja_JP.UTF-8 ;;
*)
  LANG=ja_JP.eucJP ;;
esac

if [ $LANG = ja_JP.UTF-8 ] ; then
  JLESSCHARSET=japanese-utf8
  OUTPUT_CHARSET=UTF-8
else
  JLESSCHARSET=japanese-euc
  OUTPUT_CHARSET=EUC-JP
fi
export LANG JLESSCHARSET OUTPUT_CHARSET
