diff --git a/MWebBrowser.cpp b/MWebBrowser.cpp
index 31e13ac..8453999 100644
--- a/MWebBrowser.cpp
+++ b/MWebBrowser.cpp
@@ -4,7 +4,6 @@
 
 #include "MWebBrowser.hpp"
 #include <cstdio>
-#include <mshtml.h>
 #include <comdef.h>
 #include <cassert>
 
@@ -65,6 +64,17 @@ IWebBrowser2 *MWebBrowser::GetIWebBrowser2()
     return m_web_browser2;
 }
 
+IHTMLDocument2 *MWebBrowser::GetIHTMLDocument2()
+{
+    IDispatch *pDisp;
+    m_web_browser2->get_Document(&pDisp);
+    if (pDisp)
+    {
+        return static_cast<IHTMLDocument2 *>(pDisp);
+    }
+    return NULL;
+}
+
 HWND MWebBrowser::GetControlWindow()
 {
     if (::IsWindow(m_hwndCtrl))
diff --git a/MWebBrowser.hpp b/MWebBrowser.hpp
index 435216b..438c249 100644
--- a/MWebBrowser.hpp
+++ b/MWebBrowser.hpp
@@ -7,6 +7,7 @@
 
 #include <windows.h>
 #include <exdisp.h>
+#include <mshtml.h>
 
 class MWebBrowser :
     public IOleClientSite,
@@ -38,6 +39,7 @@ class MWebBrowser :
     void Destroy();
     BOOL TranslateAccelerator(LPMSG pMsg);
     IWebBrowser2 *GetIWebBrowser2();
+    IHTMLDocument2 *GetIHTMLDocument2();
     void AllowInsecure(BOOL bAllow);
 
     HRESULT get_Application(IDispatch **ppApplication) const;
diff --git a/RightSide_en.txt b/RightSide_en.txt
index 131ab49..53ebbd3 100644
--- a/RightSide_en.txt
+++ b/RightSide_en.txt
@@ -5,6 +5,8 @@
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; <button-text>	<button-height>	<command-id-or-url-or-command-line>
 Home	60	#104
+Move Up	60	#132
+Move Down	60	#133
 Stop/Reload	60	#103
 Print Preview	60	#113
 Print...	60	#111
diff --git a/RightSide_ja.txt b/RightSide_ja.txt
index b0049ca..31e8c19 100644
--- a/RightSide_ja.txt
+++ b/RightSide_ja.txt
@@ -5,6 +5,8 @@
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; <ボタンのテキスト>	<ボタンの高さ>	<コマンドIDまたはURLまたはコマンドライン>
 ホーム	60	#104
+↑上へ移動	60	#132
+↓下へ移動	60	#133
 停止/再読み込み	60	#103
 印刷プレビュー	60	#113
 印刷...	60	#111
diff --git a/SimpleBrowser.cpp b/SimpleBrowser.cpp
index b6b5951..cc01df0 100644
--- a/SimpleBrowser.cpp
+++ b/SimpleBrowser.cpp
@@ -1875,6 +1875,42 @@ void OnCancelPrinting(HWND hwnd)
     DoExecute(hwnd, L"CancelPrinting.bat", SW_HIDE);
 }
 
+void OnUp(HWND hwnd)
+{
+    if (IHTMLDocument2 *pDocument = s_pWebBrowser->GetIHTMLDocument2())
+    {
+        IHTMLWindow2 *pWindow = NULL;
+        pDocument->get_parentWindow(&pWindow);
+        if (pWindow)
+        {
+            for (int i = 0; i < 10; ++i)
+            {
+                pWindow->scrollBy(0, -40);
+            }
+            pWindow->Release();
+        }
+        pDocument->Release();
+    }
+}
+
+void OnDown(HWND hwnd)
+{
+    if (IHTMLDocument2 *pDocument = s_pWebBrowser->GetIHTMLDocument2())
+    {
+        IHTMLWindow2 *pWindow = NULL;
+        pDocument->get_parentWindow(&pWindow);
+        if (pWindow)
+        {
+            for (int i = 0; i < 10; ++i)
+            {
+                pWindow->scrollBy(0, 40);
+            }
+            pWindow->Release();
+        }
+        pDocument->Release();
+    }
+}
+
 void OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify)
 {
     static INT s_nLevel = 0;
@@ -1979,6 +2015,12 @@ void OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify)
     case ID_CANCEL_PRINTING:
         OnCancelPrinting(hwnd);
         break;
+    case ID_UP:
+        OnUp(hwnd);
+        break;
+    case ID_DOWN:
+        OnDown(hwnd);
+        break;
     }
 
     --s_nLevel;
diff --git a/resource.h b/resource.h
index 057568b..59bb846 100644
--- a/resource.h
+++ b/resource.h
@@ -77,12 +77,14 @@
 #define ID_GO_URL                           129
 #define ID_EXECUTE_CMD                      130
 #define ID_CANCEL_PRINTING                  131
+#define ID_UP                               132
+#define ID_DOWN                             133
 
 #ifdef APSTUDIO_INVOKED
     #ifndef APSTUDIO_READONLY_SYMBOLS
         #define _APS_NO_MFC                 1
         #define _APS_NEXT_RESOURCE_VALUE    101
-        #define _APS_NEXT_COMMAND_VALUE     129
+        #define _APS_NEXT_COMMAND_VALUE     134
         #define _APS_NEXT_CONTROL_VALUE     1000
         #define _APS_NEXT_SYMED_VALUE       300
     #endif