diff --git a/build/js/ox.load.js b/build/js/ox.load.js
index daa58964..30f3d7d1 100644
--- a/build/js/ox.load.js
+++ b/build/js/ox.load.js
@@ -44,9 +44,14 @@ $(function() {
                 userAgent = name;
                 return false;
             }
-            if (!userAgent && navigator.userAgent.indexOf('Gecko') > -1)
-                userAgent = 'Firefox';
+            }
         });
+        if (!userAgent && $.browser.mozilla) {
+            userAgent = 'Firefox';
+        }
+        if (!userAgent && $.browser.webkit) {
+            userAgent = 'Chrome';
+        }
         return userAgent;
     }
 
diff --git a/build/js/ox.ui.js b/build/js/ox.ui.js
index bb5c7fd7..76d0bdd7 100644
--- a/build/js/ox.ui.js
+++ b/build/js/ox.ui.js
@@ -98,9 +98,9 @@ requires
     _$elements = $elements;
 
     $(function() {
-        $window = $(window),
-        $document = $(document),
-        $body = $('body'),
+        $window = $(window);
+        $document = $(document);
+        $body = $('body');
         Ox.theme(oxui.defaultTheme);
     });
 
@@ -153,6 +153,12 @@ requires
                         return false;
                     }
                 });
+                if (!userAgent && $.browser.mozilla) {
+                    userAgent = 'Firefox';
+                }
+                if (!userAgent && $.browser.webkit) {
+                    userAgent = 'Chrome';
+                }
                 return userAgent;
             }
 
@@ -248,7 +254,7 @@ requires
                             };
                         });
                         that.api.init(getUserData(), function(result) {
-                            config = result.data.config,
+                            config = result.data.config;
                             user = result.data.user;
                             document.title = config.site.name;
                             launchCallback();
@@ -524,7 +530,7 @@ requires
                 keys.push(keyNames[event.keyCode]);
             }
             key = keys.join('_');
-            if (key.match(/^[\w\d-]$|SPACE/)) {
+            if (key.match(/^[\w\d\-]$|SPACE/)) {
                 time = Ox.getTime();
                 if (time - bufferTime > bufferTimeout) {
                     buffer = '';
@@ -586,10 +592,10 @@ requires
                         if (arguments[0](req)) {
                             delete requests[id];
                         }
-                    })
+                    });
                 } else {
                     // cancel by id
-                    delete requests[arguments[0]]
+                    delete requests[arguments[0]];
                 }
             },