diff -Naur trayer-1.0.orig/misc.c trayer-1.0/misc.c
--- trayer-1.0.orig/misc.c	2005-01-17 23:56:17.000000000 +0200
+++ trayer-1.0/misc.c	2011-12-24 09:41:34.000000000 +0200
@@ -41,6 +41,7 @@
 Atom a_NET_WM_STATE_STICKY;
 Atom a_NET_WM_STATE_HIDDEN;
 Atom a_NET_WM_STATE_SHADED;
+Atom a_NET_WM_STATE_BELOW;
 Atom a_NET_WM_WINDOW_TYPE;
 Atom a_NET_WM_WINDOW_TYPE_DESKTOP;
 Atom a_NET_WM_WINDOW_TYPE_DOCK;
@@ -223,6 +224,7 @@
     a_NET_WM_STATE_STICKY        = XInternAtom(GDK_DISPLAY(), "_NET_WM_STATE_STICKY", False);
     a_NET_WM_STATE_HIDDEN        = XInternAtom(GDK_DISPLAY(), "_NET_WM_STATE_HIDDEN", False);
     a_NET_WM_STATE_SHADED        = XInternAtom(GDK_DISPLAY(), "_NET_WM_STATE_SHADED", False);
+    a_NET_WM_STATE_BELOW         = XInternAtom(GDK_DISPLAY(), "_NET_WM_STATE_BELOW", False);
     a_NET_WM_WINDOW_TYPE         = XInternAtom(GDK_DISPLAY(), "_NET_WM_WINDOW_TYPE", False);
 
     a_NET_WM_WINDOW_TYPE_DESKTOP = XInternAtom(GDK_DISPLAY(), "_NET_WM_WINDOW_TYPE_DESKTOP", False);
diff -Naur trayer-1.0.orig/panel.c trayer-1.0/panel.c
--- trayer-1.0.orig/panel.c	2005-02-18 23:38:28.000000000 +0200
+++ trayer-1.0/panel.c	2011-12-24 09:33:58.000000000 +0200
@@ -434,8 +434,9 @@
     state[0] = a_NET_WM_STATE_SKIP_PAGER;
     state[1] = a_NET_WM_STATE_SKIP_TASKBAR;
     state[2] = a_NET_WM_STATE_STICKY;
+    state[3] = a_NET_WM_STATE_BELOW;
     XChangeProperty(GDK_DISPLAY(), p->topxwin, a_NET_WM_STATE, XA_ATOM,
-          32, PropModeReplace, (unsigned char *) state, 3);
+          32, PropModeReplace, (unsigned char *) state, 4);
 
 
 
diff -Naur trayer-1.0.orig/panel.h trayer-1.0/panel.h
--- trayer-1.0.orig/panel.h	2004-05-24 10:01:48.000000000 +0300
+++ trayer-1.0/panel.h	2011-12-24 09:34:20.000000000 +0200
@@ -102,6 +102,7 @@
 extern Atom a_NET_WM_STATE_STICKY;
 extern Atom a_NET_WM_STATE_HIDDEN;
 extern Atom a_NET_WM_STATE_SHADED;
+extern Atom a_NET_WM_STATE_BELOW;
 
 #define a_NET_WM_STATE_REMOVE        0    /* remove/unset property */
 #define a_NET_WM_STATE_ADD           1    /* add/set property */