diff --git a/ecrire/lang/spip.xml b/ecrire/lang/spip.xml
index 6290919f1ebe14b44f5f238fa35f09c80a0aebb0..d6f49684c2ce672ab1db11232b3a6ffa6111bc63 100644
--- a/ecrire/lang/spip.xml
+++ b/ecrire/lang/spip.xml
@@ -127,6 +127,7 @@
 	</langue>
 	<langue code="ja" url="http://trad.spip.net/tradlang_module/spip?lang_cible=ja" total="636" traduits="482" relire="0" modifs="55" nouveaux="99" pourcent="75.79">
 		<traducteur nom="Cap" lien="http://trad.spip.net/auteur/cap" />
+		<traducteur nom="erational" lien="http://trad.spip.net/auteur/erational-7186" />
 	</langue>
 	<langue code="km" url="http://trad.spip.net/tradlang_module/spip?lang_cible=km" total="636" traduits="567" relire="0" modifs="12" nouveaux="57" pourcent="89.15">
 	</langue>
diff --git a/ecrire/lang/spip_ja.php b/ecrire/lang/spip_ja.php
index 40349e1498a5f4844199c8107b254a33a59b4be4..333cedeb999f8834718f9def423ed32a0ff4c62d 100644
--- a/ecrire/lang/spip_ja.php
+++ b/ecrire/lang/spip_ja.php
@@ -63,7 +63,7 @@ $GLOBALS[$GLOBALS['idx_lang']] = array(
 	'bouton_changer' => '修正する',
 	'bouton_chercher' => '検索',
 	'bouton_choisir' => '選択',
-	'bouton_download' => 'Télécharger', # MODIF
+	'bouton_download' => 'アップロード', # MODIF
 	'bouton_enregistrer' => '保存',
 	'bouton_radio_desactiver_messagerie_interne' => '内部のメッセージ交換を停止',
 	'bouton_radio_envoi_annonces' => '編集の発表を送る',
@@ -145,26 +145,26 @@ $GLOBALS[$GLOBALS['idx_lang']] = array(
 	'date_jnum8' => '8',
 	'date_jnum9' => '9',
 	'date_jour_1' => '日曜日',
-	'date_jour_1_abbr' => '???',
-	'date_jour_1_initiale' => '?',
+	'date_jour_1_abbr' => 'æ—¥',
+	'date_jour_1_initiale' => 'æ—¥',
 	'date_jour_2' => '月曜日',
-	'date_jour_2_abbr' => '??',
-	'date_jour_2_initiale' => 'ŒŽ',
+	'date_jour_2_abbr' => '月',
+	'date_jour_2_initiale' => '月',
 	'date_jour_3' => '火曜日',
-	'date_jour_3_abbr' => '‰Î',
-	'date_jour_3_initiale' => '‰Î',
+	'date_jour_3_abbr' => '火',
+	'date_jour_3_initiale' => '火',
 	'date_jour_4' => '水曜日',
-	'date_jour_4_abbr' => '…',
-	'date_jour_4_initiale' => '…',
+	'date_jour_4_abbr' => 'æ°´',
+	'date_jour_4_initiale' => 'æ°´',
 	'date_jour_5' => '木曜日',
-	'date_jour_5_abbr' => '–Ø',
-	'date_jour_5_initiale' => '–Ø',
+	'date_jour_5_abbr' => '木',
+	'date_jour_5_initiale' => '木',
 	'date_jour_6' => '金曜日',
-	'date_jour_6_abbr' => '??',
-	'date_jour_6_initiale' => '?',
+	'date_jour_6_abbr' => '金',
+	'date_jour_6_initiale' => '金',
 	'date_jour_7' => '土曜日',
-	'date_jour_7_abbr' => '“y',
-	'date_jour_7_initiale' => '“y',
+	'date_jour_7_abbr' => '土',
+	'date_jour_7_initiale' => '土',
 	'date_jours' => 'æ—¥',
 	'date_minutes' => '分',
 	'date_mois' => 'ヶ月',