diff -urN isoqlog-2.2.1.orig/data/lang/Makefile.am isoqlog-2.2.1/data/lang/Makefile.am
--- isoqlog-2.2.1.orig/data/lang/Makefile.am	2004-09-23 01:56:34.000000000 +0900
+++ isoqlog-2.2.1/data/lang/Makefile.am	2008-09-14 11:09:21.000000000 +0900
@@ -2,6 +2,6 @@
 ## Created by Ozkan KIRIK
 
 isoqlog_langdir = ${prefix}/share/isoqlog/lang
-isoqlog_lang_DATA = turkish swedish spanish russian portuguese polish dutch english finnish french german italian norwegian czech romana bulgarian danish
+isoqlog_lang_DATA = turkish swedish spanish russian portuguese polish dutch english japanese finnish french german italian norwegian czech romana bulgarian danish
 
 EXTRA_DIST = $(isoqlog_lang_DATA)
diff -urN isoqlog-2.2.1.orig/data/lang/Makefile.in isoqlog-2.2.1/data/lang/Makefile.in
--- isoqlog-2.2.1.orig/data/lang/Makefile.in	2005-02-27 00:22:21.000000000 +0900
+++ isoqlog-2.2.1/data/lang/Makefile.in	2008-09-14 11:09:21.000000000 +0900
@@ -75,7 +75,7 @@
 install_sh = @install_sh@
 
 isoqlog_langdir = ${prefix}/share/isoqlog/lang
-isoqlog_lang_DATA = turkish swedish spanish russian portuguese polish dutch english finnish french german italian norwegian czech romana bulgarian danish
+isoqlog_lang_DATA = turkish swedish spanish russian portuguese polish dutch english japanese finnish french german italian norwegian czech romana bulgarian danish
 
 EXTRA_DIST = $(isoqlog_lang_DATA)
 subdir = data/lang
diff -urN isoqlog-2.2.1.orig/data/lang/japanese isoqlog-2.2.1/data/lang/japanese
--- isoqlog-2.2.1.orig/data/lang/japanese	1970-01-01 09:00:00.000000000 +0900
+++ isoqlog-2.2.1/data/lang/japanese	2008-09-14 11:09:21.000000000 +0900
@@ -0,0 +1,21 @@
+L_Average = "平均"
+L_Creationtime = "作成時刻"
+L_Daily = "日次"
+L_Day = "日付"
+L_Domain = "ドメイン"
+L_Encoding = "UTF-8"
+L_Mail = "メールアドレス"
+L_Main_Page = "Main"
+L_Month = "月"
+L_Monthly = "月次"
+L_Number = "メール数"
+L_Received = "受信メール数"
+L_Receiver = "受信者"
+L_Sender = "送信者"
+L_Sent = "送信メール数"
+L_Size = "メールサイズ"
+L_Stats = "利用統計"
+L_Top = "トップ"
+L_Total = "合計"
+L_Year = "年"
+L_Yearly = "年次"