Index: code/trunk/src/orxonox/overlays/CMakeLists.txt
===================================================================
--- code/trunk/src/orxonox/overlays/CMakeLists.txt	(revision 2926)
+++ code/trunk/src/orxonox/overlays/CMakeLists.txt	(revision 2957)
@@ -3,4 +3,5 @@
   OverlayGroup.cc
   OverlayText.cc
+  GUIOverlay.cc
 )
 
Index: code/trunk/src/orxonox/overlays/GUIOverlay.cc
===================================================================
--- code/trunk/src/orxonox/overlays/GUIOverlay.cc	(revision 2957)
+++ code/trunk/src/orxonox/overlays/GUIOverlay.cc	(revision 2957)
@@ -0,0 +1,64 @@
+/*
+ *   ORXONOX - the hottest 3D action shooter ever to exist
+ *                    > www.orxonox.net <
+ *
+ *
+ *   License notice:
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation; either version 2
+ *   of the License, or (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ *   Author:
+ *      Benjamin Knecht
+ *   Co-authors:
+ *      ...
+ *
+ */
+
+#include "GUIOverlay.h"
+#include "OrxonoxStableHeaders.h"
+
+#include "../gui/GUIManager.h"
+
+namespace orxonox
+{
+    CreateFactory(GUIOverlay);
+
+    GUIOverlay::GUIOverlay(BaseObject* creator) : OrxonoxOverlay(creator)
+    {
+        RegisterObject(GUIOverlay);
+    }
+
+    GUIOverlay::~GUIOverlay()
+    {
+    }
+
+    void GUIOverlay::XMLPort(Element& xmlElement, XMLPort::Mode mode)
+    {
+        SUPER(GUIOverlay, XMLPort, xmlElement, mode);
+
+        XMLPortParam(GUIOverlay, "guiname", setGUIName, getGUIName, xmlElement, mode);
+    }
+
+    void GUIOverlay::changedVisibility()
+    {
+        SUPER(GUIOverlay, changedVisibility);
+
+        if (this->isVisible())
+            GUIManager::getInstancePtr()->executeCode("showGUI(\"" + this->guiName_ + "\", " + this + ")");
+        else
+            GUIManager::getInstancePtr()->executeCode("hideGUI(\"" + this->guiName_ + "\")");
+    }
+
+}
Index: code/trunk/src/orxonox/overlays/GUIOverlay.h
===================================================================
--- code/trunk/src/orxonox/overlays/GUIOverlay.h	(revision 2957)
+++ code/trunk/src/orxonox/overlays/GUIOverlay.h	(revision 2957)
@@ -0,0 +1,61 @@
+/*
+ *   ORXONOX - the hottest 3D action shooter ever to exist
+ *                    > www.orxonox.net <
+ *
+ *
+ *   License notice:
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation; either version 2
+ *   of the License, or (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ *   Author:
+ *      Benjamin Knecht
+ *   Co-authors:
+ *      ...
+ *
+ */
+
+#ifndef _GUIOverlay_H__
+#define _GUIOverlay_H__
+
+
+#include "OrxonoxOverlay.h"
+#include "OrxonoxPrereqs.h"
+
+#include <OgrePrerequisites.h>
+
+#include "core/XMLPort.h"
+
+namespace orxonox
+{
+    class _OrxonoxExport GUIOverlay : public OrxonoxOverlay
+    {
+        public:
+
+            GUIOverlay(BaseObject* creator);
+            virtual ~GUIOverlay();
+
+            virtual void XMLPort(Element& xmlElement, XMLPort::Mode mode);
+
+            inline void setGUIName(const std::string& name) { this->guiName_ = name; }
+            inline const std::string& getGUIName() const { return this->guiName_; }
+
+            virtual void changedVisibility();
+
+        private:
+            std::string guiName_;
+    };
+}
+
+#endif
