diff --git a/extensions/tf2/AMBuilder b/extensions/tf2/AMBuilder
index 88bc5787..8d0b53e9 100644
--- a/extensions/tf2/AMBuilder
+++ b/extensions/tf2/AMBuilder
@@ -16,6 +16,7 @@ binary.AddSourceFiles('extensions/tf2', [
 	'RegNatives.cpp',
 	'util.cpp',
 	'criticals.cpp',
+	'holiday.cpp',
 	'CDetour/detours.cpp',
 	'sdk/smsdk_ext.cpp',
 	'asm/asm.c'
diff --git a/extensions/tf2/Makefile b/extensions/tf2/Makefile
index b5bfc926..9c1df180 100644
--- a/extensions/tf2/Makefile
+++ b/extensions/tf2/Makefile
@@ -19,7 +19,7 @@ PROJECT = game.tf2
 USEMETA = true
 
 OBJECTS = sdk/smsdk_ext.cpp extension.cpp natives.cpp RegNatives.cpp criticals.cpp \
-	util.cpp CDetour/detours.cpp asm/asm.c
+	holiday.cpp util.cpp CDetour/detours.cpp asm/asm.c
 
 ##############################################
 ### CONFIGURE ANY OTHER FLAGS/OPTIONS HERE ###
diff --git a/extensions/tf2/criticals.cpp b/extensions/tf2/criticals.cpp
index 447b8257..4c523a3d 100644
--- a/extensions/tf2/criticals.cpp
+++ b/extensions/tf2/criticals.cpp
@@ -188,7 +188,7 @@ DETOUR_DECL_MEMBER0(CalcIsAttackCriticalHelperBow, bool)
 	}
 }
 
-void InitialiseDetours()
+void InitialiseCritDetours()
 {
 	calcIsAttackCriticalDetour = DETOUR_CREATE_MEMBER(CalcIsAttackCriticalHelper, "CalcCritical");
 	calcIsAttackCriticalMeleeDetour = DETOUR_CREATE_MEMBER(CalcIsAttackCriticalHelperMelee, "CalcCriticalMelee");
@@ -222,7 +222,7 @@ void InitialiseDetours()
 
 }
 
-void RemoveDetours()
+void RemoveCritDetours()
 {
 	calcIsAttackCriticalDetour->Destroy();
 	calcIsAttackCriticalMeleeDetour->Destroy();
diff --git a/extensions/tf2/criticals.h b/extensions/tf2/criticals.h
index 7c0410a3..8aac6f48 100644
--- a/extensions/tf2/criticals.h
+++ b/extensions/tf2/criticals.h
@@ -37,8 +37,8 @@
 #include <jit/x86/x86_macros.h>
 #include "CDetour/detours.h"
 
-void InitialiseDetours();
-void RemoveDetours();
+void InitialiseCritDetours();
+void RemoveCritDetours();
 
 extern IForward *g_critForward;
 
diff --git a/extensions/tf2/extension.cpp b/extensions/tf2/extension.cpp
index 8add2636..ff71b55d 100644
--- a/extensions/tf2/extension.cpp
+++ b/extensions/tf2/extension.cpp
@@ -36,6 +36,7 @@
 #include "iplayerinfo.h"
 #include "sm_trie_tpl.h"
 #include "criticals.h"
+#include "holiday.h"
 #include "CDetour/detours.h"
 
 /**
@@ -108,10 +109,12 @@ bool TF2Tools::SDK_OnLoad(char *error, size_t maxlength, bool late)
 	playerhelpers->RegisterCommandTargetProcessor(this);
 
 	g_critForward = forwards->CreateForward("TF2_CalcIsAttackCritical", ET_Hook, 4, NULL, Param_Cell, Param_Cell, Param_String, Param_CellByRef);
+	g_getHolidayForward = forwards->CreateForward("TF2_OnGetHoliday", ET_Event, 1, NULL, Param_CellByRef);
 
 	g_pCVar = icvar;
 
-	m_DetoursEnabled = false;
+	m_CritDetoursEnabled = false;
+	m_GetHolidayDetourEnabled = false;
 
 	return true;
 }
@@ -155,6 +158,7 @@ void TF2Tools::SDK_OnUnload()
 	plsys->RemovePluginsListener(this);
 
 	forwards->ReleaseForward(g_critForward);
+	forwards->ReleaseForward(g_getHolidayForward);
 }
 
 void TF2Tools::SDK_OnAllLoaded()
@@ -297,19 +301,29 @@ bool TF2Tools::ProcessCommandTarget(cmd_target_info_t *info)
 
 void TF2Tools::OnPluginLoaded(IPlugin *plugin)
 {
-	if (!m_DetoursEnabled && g_critForward->GetFunctionCount())
+	if (!m_CritDetoursEnabled && g_critForward->GetFunctionCount())
 	{
-		InitialiseDetours();
-		m_DetoursEnabled = true;
+		InitialiseCritDetours();
+		m_CritDetoursEnabled = true;
+	}
+	if (!m_GetHolidayDetourEnabled && g_getHolidayForward->GetFunctionCount())
+	{
+		InitialiseGetHolidayDetour();
+		m_GetHolidayDetourEnabled = true;
 	}
 }
 
 void TF2Tools::OnPluginUnloaded(IPlugin *plugin)
 {
-	if (m_DetoursEnabled && !g_critForward->GetFunctionCount())
+	if (m_CritDetoursEnabled && !g_critForward->GetFunctionCount())
 	{
-		RemoveDetours();
-		m_DetoursEnabled = false;
+		RemoveCritDetours();
+		m_CritDetoursEnabled = false;
+	}
+	if (m_GetHolidayDetourEnabled && !g_getHolidayForward->GetFunctionCount())
+	{
+		RemoveGetHolidayDetour();
+		m_GetHolidayDetourEnabled = false;
 	}
 }
 int FindResourceEntity()
diff --git a/extensions/tf2/extension.h b/extensions/tf2/extension.h
index d6878c8e..dd1d374c 100644
--- a/extensions/tf2/extension.h
+++ b/extensions/tf2/extension.h
@@ -112,7 +112,8 @@ public:
 	virtual bool SDK_OnMetamodLoad(ISmmAPI *ismm, char *error, size_t maxlength, bool late);
 #endif
 private:
-	bool m_DetoursEnabled;
+	bool m_CritDetoursEnabled;
+	bool m_GetHolidayDetourEnabled;
 };
 
 enum TFClassType
diff --git a/extensions/tf2/holiday.cpp b/extensions/tf2/holiday.cpp
new file mode 100644
index 00000000..7c3872be
--- /dev/null
+++ b/extensions/tf2/holiday.cpp
@@ -0,0 +1,77 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Team Fortress 2 Extension
+ * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ * 
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
+#include "holiday.h"
+
+CDetour *getHolidayDetour = NULL;
+
+IForward *g_getHolidayForward = NULL;
+
+DETOUR_DECL_MEMBER0(GetHoliday, int)
+{
+	int actualres = DETOUR_MEMBER_CALL(GetHoliday)();
+	if (!g_getHolidayForward)
+	{
+		g_pSM->LogMessage(myself, "Invalid Forward");
+		return actualres;
+	}
+
+	cell_t result = 0;
+	int newres = actualres;
+
+	g_getHolidayForward->PushCellByRef(&newres);
+	g_getHolidayForward->Execute(&result);
+	
+	if (result == Pl_Changed)
+	{
+		return newres;
+	}
+
+	return actualres;
+}
+
+void InitialiseGetHolidayDetour()
+{
+	getHolidayDetour = DETOUR_CREATE_MEMBER(GetHoliday, "GetHoliday");
+
+	if (!getHolidayDetour)
+	{
+		g_pSM->LogError(myself, "GetHoliday detour failed");
+		return;
+	}
+
+	getHolidayDetour->EnableDetour();
+}
+
+void RemoveGetHolidayDetour()
+{
+	getHolidayDetour->Destroy();
+}
\ No newline at end of file
diff --git a/extensions/tf2/holiday.h b/extensions/tf2/holiday.h
new file mode 100644
index 00000000..ad20bf63
--- /dev/null
+++ b/extensions/tf2/holiday.h
@@ -0,0 +1,45 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod Team Fortress 2 Extension
+ * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ * 
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ *
+ * Version: $Id$
+ */
+
+#ifndef _INCLUDE_SOURCEMOD_HOLIDAY_H_
+#define _INCLUDE_SOURCEMOD_HOLIDAY_H_
+
+#include "extension.h"
+#include <jit/jit_helpers.h>
+#include <jit/x86/x86_macros.h>
+#include "CDetour/detours.h"
+
+void InitialiseGetHolidayDetour();
+void RemoveGetHolidayDetour();
+
+extern IForward *g_getHolidayForward;
+
+#endif //_INCLUDE_SOURCEMOD_HOLIDAY_H_
diff --git a/extensions/tf2/msvc9/tf2.vcproj b/extensions/tf2/msvc9/tf2.vcproj
index 2471153c..d9a1d677 100644
--- a/extensions/tf2/msvc9/tf2.vcproj
+++ b/extensions/tf2/msvc9/tf2.vcproj
@@ -194,6 +194,10 @@
 				RelativePath="..\extension.cpp"
 				>
 			</File>
+			<File
+				RelativePath="..\holiday.cpp"
+				>
+			</File>
 			<File
 				RelativePath="..\natives.cpp"
 				>
@@ -220,6 +224,10 @@
 				RelativePath="..\extension.h"
 				>
 			</File>
+			<File
+				RelativePath="..\holiday.h"
+				>
+			</File>
 			<File
 				RelativePath="..\RegNatives.h"
 				>
diff --git a/gamedata/sm-tf2.games.txt b/gamedata/sm-tf2.games.txt
index 0b67f33b..efdf0d64 100644
--- a/gamedata/sm-tf2.games.txt
+++ b/gamedata/sm-tf2.games.txt
@@ -92,6 +92,13 @@
 				"linux"		"@_ZN15CTFPlayerShared10StunPlayerEffiP9CTFPlayer"
 				"mac"		"@_ZN15CTFPlayerShared10StunPlayerEffiP9CTFPlayer"
 			}
+			"GetHoliday"
+			{
+				"library"	"server"
+				"windows"	"\x81\xEC\x2A\x2A\x2A\x2A\xA1\x2A\x2A\x2A\x2A\x83\x2A\x2A\x2A\x56\x8B\xF1\x89\x2A\x2A\x2A\x74\x2A\xB8"
+				"linux"		"@_ZN12CTFGameRules10GetHolidayEv"
+				"mac"		"@_ZN12CTFGameRules10GetHolidayEv"
+			}
 		}
 		"Offsets"
 		{
diff --git a/plugins/include/tf2.inc b/plugins/include/tf2.inc
index 1715953a..4b567424 100644
--- a/plugins/include/tf2.inc
+++ b/plugins/include/tf2.inc
@@ -99,6 +99,13 @@ enum TFCond
 	TFCond_Jarated
 };
 
+enum TFHoliday
+{
+	TFHoliday_None = 1,
+	TFHoliday_Halloween,
+	TFHoliday_Birthday
+};
+
 /**
  * Sets a client on fire for 10 seconds.
  *
@@ -224,6 +231,16 @@ native TFClassType:TF2_GetClass(const String:classname[]);
  */
 forward Action:TF2_CalcIsAttackCritical(client, weapon, String:weaponname[], &bool:result);
 
+/**
+ * Called when the game checks to see if the current day is one of its tracked holidays
+ *
+ * @note Change the value of holiday and return Plugin_Changed to override.
+ *       Return Plugin_Continue for no change.
+ *
+ * @param holiday		Current Holiday
+ */
+forward Action:TF2_OnGetHoliday(&TFHoliday:holiday);
+
 /**
  * Do not edit below this line!
  */