diff --git a/index.html b/index.html
index a5f6477..45c990b 100644
--- a/index.html
+++ b/index.html
@@ -30,7 +30,7 @@
       // essential settings
       ditto.index = "README.md",
       ditto.sidebar_file = "sidebar.md",
-
+	  ditto.document_title = "ECMAScript 6入门",
       // where the docs are actually stored on github - so you can edit
       ditto.base_url = "https://github.com/ruanyf/es6tutorial/edit/gh-pages/";  // <------- EDIT ME!!
 
diff --git a/js/ditto.js b/js/ditto.js
index 133809e..6ca2f3b 100644
--- a/js/ditto.js
+++ b/js/ditto.js
@@ -186,18 +186,21 @@ function router() {
     $.get(path , function(data) {
         $(ditto.error_id).hide();
         $(ditto.content_id).html(marked(data));
-
+		if ($(ditto.content_id h1) === ditto.document_title){
+			document.title = ditto.document_title;
+		} else {
+			document.title = $(ditto.content_id h1).text() + " - " + ditto.document_title;
+		}
         normalize_paths();
         create_page_anchors();
-
+		$('#content code').map(function() {
+            Prism.highlightElement(this);
+        });
     }).fail(function() {
         show_error();
 
     }).always(function() {
         clearInterval(loading);
-		$('#content code').map(function() {
-            Prism.highlightElement(this);
-        });
         $(ditto.loading_id).hide();
     });
 }