--- a/busui/owa/modules/base/js/includes/jquery/ui/i18n/ui.datepicker-ja.js
+++ b/busui/owa/modules/base/js/includes/jquery/ui/i18n/ui.datepicker-ja.js
@@ -1,1 +1,22 @@
-
+/* Japanese (UTF-8) initialisation for the jQuery UI date picker plugin. */
+/* Written by Milly. */
+jQuery(function($){
+	$.datepicker.regional['ja'] = {clearText: '削除', clearStatus: '',
+		closeText: '閉じる', closeStatus: '',
+		prevText: '<前月', prevStatus: '',
+		nextText: '次月>', nextStatus: '',
+		currentText: '今日', currentStatus: '',
+		monthNames: ['1月','2月','3月','4月','5月','6月',
+		'7月','8月','9月','10月','11月','12月'],
+		monthNamesShort: ['1月','2月','3月','4月','5月','6月',
+		'7月','8月','9月','10月','11月','12月'],
+		monthStatus: '', yearStatus: '',
+		weekHeader: 'Wk', weekStatus: '',
+		dayNames: ['日','月','火','水','木','金','土'],
+		dayNamesShort: ['日','月','火','水','木','金','土'],
+		dayNamesMin: ['日','月','火','水','木','金','土'],
+		dayStatus: 'DD', dateStatus: 'D, M d',
+		dateFormat: 'yy/mm/dd', firstDay: 0, 
+		initStatus: '', isRTL: false};
+	$.datepicker.setDefaults($.datepicker.regional['ja']);
+});