(svn r6593) -Fix: [depot window] added sprites to the buttons, that lacked one
Also changed the sprites on some of the other buttons to make the buttons consistent
Credits for this:
Drawing: skidd13 (first sprite copied/heavily inspired by Bot_40)
Grfencoding: peter1138
Coding to apply the new sprites: peter1138 (modified by me)
Ideas:
Born Acorn
MeusH
ValHallA|SW
XeryusTC
Sorry if I forgot to mention somebody

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/* $Id$ */

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#include "../stdafx.h"

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#include "../openttd.h"

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#include "null_s.h"

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static const char *NullSoundStart(const char * const *parm) { return NULL; }

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static void NullSoundStop(void) {}

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const HalSoundDriver _null_sound_driver = {

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	NullSoundStart,

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	NullSoundStop,

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};