--- platformHTMLBindings.xml.orig	2007-01-03 03:17:23.000000000 +0900
+++ platformHTMLBindings.xml	2007-01-03 03:22:41.000000000 +0900
@@ -260,6 +260,21 @@
       <handler event="keypress" keycode="VK_UP" modifiers="shift" command="cmd_selectLinePrevious" />
       <handler event="keypress" keycode="VK_DOWN" modifiers="shift" command="cmd_selectLineNext" />
       <handler event="keypress" key="a" modifiers="alt" command="cmd_selectAll"/>
+      <!-- by yuuji -->
+	<handler event="keypress" key="b" command="Browser:Back"/>
+	<handler event="keypress" keycode="VK_BACK" command="cmd_scrollPageUp"/>
+        <handler event="keypress" keycode="VK_BACK" command="cmd_scrollPageUp" />
+        <handler event="keypress" key="h" modifiers="control" command="cmd_scrollPageUp" />
+        <handler event="keypress" key=" " command="cmd_scrollPageDown" />
+        <handler event="keypress" key="i" command="cmd_scrollPageUp" modifiers="alt"/>
+        <handler event="keypress" key="h" command="cmd_scrollLeft" modifiers="alt"/>
+        <handler event="keypress" key="u" command="cmd_scrollLeft" modifiers="alt"/>
+        <handler event="keypress" key="j" command="cmd_scrollLineDown" modifiers="alt"/>
+        <handler event="keypress" key="k" command="cmd_scrollLineUp" modifiers="alt"/>
+        <handler event="keypress" key="l" command="cmd_scrollRight" modifiers="alt"/>
+        <handler event="keypress" key="g" command="cmd_scrollTop" />
+        <handler event="keypress" key="g" command="cmd_scrollBottom" modiffiers="shift"/>
+      <!-- by yuuji ends here -->
     </handlers>
   </binding>