--- xorg.orig	2008-04-30 16:01:37.000000000 +0300
+++ xorg	2008-04-30 15:56:13.000000000 +0300
@@ -867,6 +867,7 @@
   grp:alt_caps_toggle   =       +group(alt_caps_toggle)
   grp:ctrl_alt_toggle	=	+group(ctrl_alt_toggle)
   grp:alt_shift_toggle	=	+group(alt_shift_toggle)
+  grp:alt_space_toggle	=	+group(alt_space_toggle)
   grp:menu_toggle	=	+group(menu_toggle)
   grp:lwin_toggle	=	+group(lwin_toggle)
   grp:rwin_toggle	=	+group(rwin_toggle)
--- xorg.lst.orig	2008-04-30 16:02:13.000000000 +0300
+++ xorg.lst	2008-04-30 15:56:35.000000000 +0300
@@ -551,6 +551,7 @@
   grp:lctrl_lshift_toggle LCtrl+LShift change layout.
   grp:ctrl_alt_toggle  Alt+Ctrl change layout.
   grp:alt_shift_toggle Alt+Shift change layout.
+  grp:alt_space_toggle Alt+Space change layout.
   grp:menu_toggle      Menu key changes layout.
   grp:lwin_toggle      Left Win-key changes layout.
   grp:rwin_toggle      Right Win-key changes layout.
--- xorg.xml.orig	2008-04-30 16:01:55.000000000 +0300
+++ xorg.xml	2008-04-30 15:56:59.000000000 +0300
@@ -3657,6 +3657,12 @@
       </option>
       <option>
         <configItem>
+          <name>grp:alt_space_toggle</name>
+          <description>Alt+Space change layout.</description>
+        </configItem>
+      </option>
+      <option>
+        <configItem>
           <name>grp:menu_toggle</name>
           <description>Menu key changes layout.</description>
         </configItem>
--- group.orig	2008-04-30 16:01:13.000000000 +0300
+++ group	2008-04-30 15:53:34.000000000 +0300
@@ -332,3 +332,15 @@
     };
 };
 
+partial modifier_keys 
+xkb_symbols "alt_space_toggle" {
+    virtual_modifiers Alt;
+    key <LALT> {
+	symbols[Group1]= [ NoSymbol,	ISO_Prev_Group ],
+	virtualMods= Alt
+    };
+    key <SPCE> {
+	type[Group1]="PC_ALT_LEVEL2",
+	symbols[Group1]= [ space,	ISO_Next_Group ]
+    };
+};