Index: source/blender/editors/screen/screen_ops.c
===================================================================
--- source/blender/editors/screen/screen_ops.c	(revision 51303)
+++ source/blender/editors/screen/screen_ops.c	(working copy)
@@ -2871,6 +2871,35 @@
 	ot->flag = 0;
 }
 
+
+
+/* ************** show menus operator ***************************** */
+
+/* show/hide header text menus */
+static int show_menus_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	ScrArea *sa = CTX_wm_area(C);
+	sa->flag = sa->flag ^ HEADER_NO_PULLDOWN;
+	ED_area_tag_redraw(CTX_wm_area(C));
+	WM_event_add_notifier(C, NC_SCREEN | NA_EDITED, NULL);	
+	return OPERATOR_FINISHED;
+}
+
+
+static void SCREEN_OT_show_menus(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Show/Hide Header Menus";
+	ot->idname = "SCREEN_OT_show_menus";
+	ot->description = "Show or Hide the header pulldown menus";
+	
+	/* api callbacks */
+	ot->exec = show_menus_exec;	
+	ot->poll = ED_operator_areaactive;
+	ot->flag = 0;
+}
+
+
 /* ************** header tools operator ***************************** */
 void ED_screens_header_tools_menu_create(bContext *C, uiLayout *layout, void *UNUSED(arg))
 {
@@ -2883,6 +2912,8 @@
 	else
 		uiItemO(layout, IFACE_("Flip to Top"), ICON_NONE, "SCREEN_OT_header_flip");
 
+	uiItemO(layout, IFACE_( (sa->flag & HEADER_NO_PULLDOWN) ? "Show Menus" : "Hide Menus"), ICON_NONE, "SCREEN_OT_show_menus");
+
 	uiItemS(layout);
 
 	/* file browser should be fullscreen all the time, but other regions can be maximized/restored... */
@@ -3547,6 +3578,7 @@
 	WM_operatortype_append(SCREEN_OT_region_scale);
 	WM_operatortype_append(SCREEN_OT_region_flip);
 	WM_operatortype_append(SCREEN_OT_header_flip);
+	WM_operatortype_append(SCREEN_OT_show_menus);
 	WM_operatortype_append(SCREEN_OT_header_toolbox);
 	WM_operatortype_append(SCREEN_OT_screen_set);
 	WM_operatortype_append(SCREEN_OT_screen_full_area);