+ action = gtk_action_group_get_action(lw->action_group, "SplitNextPane");
+ gtk_action_set_sensitive(action, !(lw->split_mode == SPLIT_NONE));
+ action = gtk_action_group_get_action(lw->action_group, "SplitPreviousPane");
+ gtk_action_set_sensitive(action, !(lw->split_mode == SPLIT_NONE));
+