diff --git a/base.php b/base.php
index 8a5a49f..992fa8b 100644
--- a/base.php
+++ b/base.php
@@ -126,7 +126,7 @@ function localize($phrase, $count=-1) {
     static $translations = NULL;
     /* If no instance of $translations has occured load the language file */
     if (is_null($translations)) {
-        $lang = "zh";
+        $lang = "en";
         if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE']))
         {
             //$lang = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);
diff --git a/lang/Localization_zh.json b/lang/Localization_zh.json
index 1e5960a..b0ad7aa 100644
--- a/lang/Localization_zh.json
+++ b/lang/Localization_zh.json
@@ -60,29 +60,29 @@
 "tags.alphabetical.many":"{0} 个标签的字母索引",
 "tags.alphabetical.one":"Alphabetical index of the single tag - very useful indeed ;)",
 "tags.alphabetical.none":"Alphabetical index of absolutely no tag - very useful indeed ;)",
-"splitByLetter.tag.other":"Other tags",
-"authors.series.title":"Series: {0}",
+"splitByLetter.tag.other":"其他标签",
+"authors.series.title":"系列: {0}",
 "authors.title":"作者",
 "authors.alphabetical.many":"{0} 位作者的字母索引",
 "authors.alphabetical.one":"Alphabetical index of the single author - very useful indeed ;)",
 "authors.alphabetical.none":"Alphabetical index of absolutely no author - very useful indeed ;)",
-"splitByLetter.author.other":"Other authors",
+"splitByLetter.author.other":"其他作者",
 "series.title":"系列",
 "series.alphabetical.many":"{0} 个系列的字母索引",
 "series.alphabetical.one":"Alphabetical index of the single series - very useful indeed ;)",
 "series.alphabetical.none":"Alphabetical index of absolutely no series - very useful indeed ;)",
-"splitByLetter.series.other":"Other series",
+"splitByLetter.series.other":"其他系列",
 "recent.title":"最近添加",
 "recent.list":"{0} 本最近添加的书",
 "recent.list.single":"Most recent single book - very useful indeed ;)",
 "rating.title":"Rating",
-"rating.summary":"{0}, grouped by rating",
+"rating.summary":"{0}, 根据评分分组",
 "allbooks.title":"所有书籍",
 "allbooks.alphabetical.many":"{0} 本书籍的字母索引",
 "allbooks.alphabetical.one":"Alphabetical index of the single book - very useful indeed ;)",
 "allbooks.alphabetical.none":"Alphabetical index of absolutely no book - very useful indeed ;)",
-"splitByLetter.book.other":"Other books",
-"main.title":"Calibre library",
+"splitByLetter.book.other":"其他书籍",
+"main.title":"Calibre 书架",
 "main.summary":"{0} has catalogued {1}",
 "startup.newhome":"Default configuration folder home redirected to {0}",
 "startup.redirectfound":".redirect file found in {0}",
@@ -95,28 +95,28 @@
 "startup.foldertilde":"Try configuration folder from tilde folder {0}",
 "startup.folderjar":"Try configuration folder from .jar location {0}",
 "startup.foldernotexist":"... but specified folder does not exist",
-"i18n.and":"and",
-"i18n.downloads":"Downloads, links and other catalogs",
-"i18n.links":"Links and other catalogs",
+"i18n.and":"和",
+"i18n.downloads":"下载,链接和其他目录 ",
+"i18n.links":"链接和其他目录",
 "i18n.coversection":"封面",
 "i18n.downloadfile":"下载文件",
 "i18n.downloadsection":"下载",
-"i18n.relatedsection":"Related catalogs",
-"i18n.linksection":"External links",
-"i18n.backToMain":"Back to the main page of the catalog",
+"i18n.relatedsection":"相关目录",
+"i18n.linksection":"外部链接",
+"i18n.backToMain":"返回目录主页",
 "i18n.summarysection":"描述",
-"i18n.dateGenerated":"Catalog generated on {0}",
+"i18n.dateGenerated":"目录生成于 {0}",
 "deeplevel.summary":"{0} broken up by authors, tags, etc. ",
 "about.title":"关于COPS",
 "about.summary":"关于Calibre2Opds的说明",
-"usage.intro":"The options are taken from the configuration file located at {0}",
+"usage.intro":"选项从此配置文件生成 {0}",
 "config.Language.label":"语言",
-"config.Language.description":"This setting changes the language used by the program ; use the standard ISO language code (e.g. EN, FR, DE...)",
-"config.Language.possible":"Possible values : {0}",
-"intro.goal":"Generate OPDS and HTML catalogs from your Calibre ebooks database",
-"intro.wiki.title":"The project''s home : ",
+"config.Language.description":"此项设置将会改变程序使用的语言 ; 请使用ISO标准语言代码 (例如 EN, FR, DE...)",
+"config.Language.possible":"可能的选项 : {0}",
+"intro.goal":"从你的 Calibre 数据库生成 OPDS 和 HTML 目录",
+"intro.wiki.title":"项目主页 : ",
 "intro.wiki.url":"http://calibre2opds.com",
-"intro.team.title":"The Calibre2Opds team :",
+"intro.team.title":"项目人员 :",
 "intro.team.list1":"David Pierron - main programmer",
 "intro.team.list2":"Dave Walker - guru, features manager and tester extraordinaire",
 "intro.team.list3":"Farid Soussi - css and html guru",
@@ -124,10 +124,10 @@
 "intro.team.list5":"Jane Litte - beta tester and moral support",
 "intro.thanks.1":"Special thanks to Kb Sriram, who not only programmed Trook, an excellent and OPDS compatible ",
 "intro.thanks.2":"library manager for the Nook, but also was kind enough to donate a Nook !",
-"search.result":"Search result for *{0}*",
+"search.result":"*{0}* 的搜索结果",
 "search.sortorder.asc":"升序",
 "search.sortorder.desc":"降序",
-"permalink.alternate":"Permalink",
+"permalink.alternate":"永久链接",
 "home.alternate":"首页",
 "search.alternate":"搜索",
 "sort.alternate":"排序",