if (typeof $.Redactor !== 'undefined') {
    if (typeof $.Redactor.opts.langs.ja !== 'undefined') {
        $.Redactor.opts.langs.ja.imgFileCount = 'Its over file count upload at once.';
        $.Redactor.opts.langs.ja.imgFileSizeOver = 'some file has over size.';
        $.Redactor.opts.langs.ja.imgFileUnableUpload = 'Some file has over 10 MB or Selected 20+ files or Total File Capacity 200 MB';
        $.Redactor.opts.langs.ja.imgNoMap = '地図挿入なし';
    }
    $.Redactor.opts.langs.en.imgFileCount = 'Its over file count upload at once.';
    $.Redactor.opts.langs.en.imgFileSizeOver = 'some file has over size.';
    $.Redactor.opts.langs.en.imgFileUnableUpload = 'Some file has over 10 MB or Selected 20+ files or Total File Capacity 200 MB';
    $.Redactor.opts.langs.en.imgNoMap = 'Do not insert map';
}