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diff --git a/indra/llui/llaccordionctrl.h b/indra/llui/llaccordionctrl.h
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+/** 
+ * @file LLAccordionCtrl.h
+ * @brief Accordion Panel implementation
+ *
+ * $LicenseInfo:firstyear=2004&license=viewergpl$
+ * 
+ * Copyright (c) 2004-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_ACCORDIONCTRL_H
+#define LL_ACCORDIONCTRL_H
+
+#include "llpanel.h"
+#include "llscrollbar.h"
+
+#include <vector>
+#include <algorithm>
+#include <string>
+
+class LLAccordionCtrlTab;
+
+class LLAccordionCtrl: public LLPanel
+{
+private:
+
+	std::vector<LLAccordionCtrlTab*> mAccordionTabs;
+
+	void ctrlSetLeftTopAndSize(LLView* panel, S32 left, S32 top, S32 width, S32 height);
+	void ctrlShiftVertical(LLView* panel,S32 delta);
+	
+	void onCollapseCtrlCloseOpen(S16 panel_num); 
+	void shiftAccordionTabs(S16 panel_num, S32 delta);
+
+
+public:
+	struct Params 
+		: public LLInitParam::Block<Params, LLPanel::Params>
+	{
+		Optional<bool>			single_expansion,
+								fit_parent; /* Accordion will fit its parent size, controls that are placed into 
+								accordion tabs are responsible for scrolling their content.
+								*NOTE fit_parent works best when combined with single_expansion.
+								Accordion view should implement getRequiredRect() and provide valid height*/
+
+		Params()
+			: single_expansion("single_expansion",false)
+			, fit_parent("fit_parent", false)
+		{};
+	};
+
+	LLAccordionCtrl(const Params& params);
+
+    LLAccordionCtrl();
+    virtual ~LLAccordionCtrl();
+
+	virtual BOOL postBuild();
+	
+	virtual BOOL handleRightMouseDown	( S32 x, S32 y, MASK mask); 
+	virtual BOOL handleScrollWheel		( S32 x, S32 y, S32 clicks );
+	virtual BOOL handleKeyHere			(KEY key, MASK mask);
+	//
+
+	// Call reshape after changing splitter's size
+	virtual void reshape(S32 width, S32 height, BOOL called_from_parent = TRUE);
+
+	void addCollapsibleCtrl(LLView* view);
+	void arrange();
+
+
+	void	draw();
+	
+	void	onScrollPosChangeCallback(S32, LLScrollbar*);
+
+	void	onOpen		(const LLSD& key);
+	S32		notifyParent(const LLSD& info);
+
+	void	reset		();
+
+private:
+	// Calc Splitter's height that is necessary to display all child content
+	S32		calcRecuiredHeight();
+	S32		getRecuiredHeight() const { return mInnerRect.getHeight(); }
+	S32		calcExpandedTabHeight(S32 tab_index = 0, S32 available_height = 0);
+
+	void	updateLayout			(S32 width, S32 height);
+
+	void	show_hide_scrollbar		(S32 width, S32 height);
+
+	void	showScrollbar			(S32 width, S32 height);
+	void	hideScrollbar			(S32 width, S32 height);
+
+private:
+	LLRect			mInnerRect;
+	LLScrollbar*	mScrollbar;
+	bool			mSingleExpansion;
+	bool			mFitParent;
+};
+
+
+#endif // LL_LLSPLITTER_H