diff --git a/builds/appchan-x.user.js b/builds/appchan-x.user.js
index b3c7587cb..9e0d76dc9 100644
--- a/builds/appchan-x.user.js
+++ b/builds/appchan-x.user.js
@@ -4203,17 +4203,15 @@
       return Header.previousOffset = offsetY;
     },
     setBarPosition: function(bottom) {
+      var args;
+
       Header.barPositionToggler.checked = bottom;
       $.event('CloseMenu');
-      if (bottom) {
-        $.addClass(doc, 'bottom-header');
-        $.rmClass(doc, 'top-header');
-        return Header.bar.parentNode.className = 'bottom';
-      } else {
-        $.addClass(doc, 'top-header');
-        $.rmClass(doc, 'bottom-header');
-        return Header.bar.parentNode.className = 'top';
-      }
+      args = bottom ? ['bottom-header', 'top-header', 'bottom', 'after'] : ['top-header', 'bottom-header', 'top', 'add'];
+      $.addClass(doc, args[0]);
+      $.rmClass(doc, args[1]);
+      Header.bar.parentNode.className = args[2];
+      return $[args[3]](Header.bar, Header.notify);
     },
     toggleBarPosition: function() {
       $.cb.checked.call(this);
diff --git a/builds/crx/script.js b/builds/crx/script.js
index ff0302c41..f331426ce 100644
--- a/builds/crx/script.js
+++ b/builds/crx/script.js
@@ -4228,17 +4228,15 @@
       return Header.previousOffset = offsetY;
     },
     setBarPosition: function(bottom) {
+      var args;
+
       Header.barPositionToggler.checked = bottom;
       $.event('CloseMenu');
-      if (bottom) {
-        $.addClass(doc, 'bottom-header');
-        $.rmClass(doc, 'top-header');
-        return Header.bar.parentNode.className = 'bottom';
-      } else {
-        $.addClass(doc, 'top-header');
-        $.rmClass(doc, 'bottom-header');
-        return Header.bar.parentNode.className = 'top';
-      }
+      args = bottom ? ['bottom-header', 'top-header', 'bottom', 'after'] : ['top-header', 'bottom-header', 'top', 'add'];
+      $.addClass(doc, args[0]);
+      $.rmClass(doc, args[1]);
+      Header.bar.parentNode.className = args[2];
+      return $[args[3]](Header.bar, Header.notify);
     },
     toggleBarPosition: function() {
       $.cb.checked.call(this);
diff --git a/src/General/Header.coffee b/src/General/Header.coffee
index e5743a88d..b1d4b25d2 100644
--- a/src/General/Header.coffee
+++ b/src/General/Header.coffee
@@ -250,14 +250,22 @@ Header =
   setBarPosition: (bottom) ->
     Header.barPositionToggler.checked = bottom
     $.event 'CloseMenu'
-    if bottom
-      $.addClass doc, 'bottom-header'
-      $.rmClass  doc, 'top-header'
-      Header.bar.parentNode.className = 'bottom'
-    else
-      $.addClass doc, 'top-header'
-      $.rmClass  doc, 'bottom-header'
-      Header.bar.parentNode.className = 'top'
+    args = if bottom then [
+      'bottom-header'
+      'top-header'
+      'bottom'
+      'after'
+    ] else [
+      'top-header'
+      'bottom-header'
+      'top'
+      'add'
+    ]
+
+    $.addClass doc, args[0]
+    $.rmClass  doc, args[1]
+    Header.bar.parentNode.className = args[2]
+    $[args[3]] Header.bar, Header.notify
 
   toggleBarPosition: ->
     $.cb.checked.call @