wglCreateContextAttribsARB identifier not found

hi

i’m trying to create an OpenGL 3.1 Context( C++, Windows ) and
i’m getting an error:
error C3861: ‘wglCreateContextAttribsARB’: identifier not found

i have included all the nessecary headers:

#include “gl/glew.h”
#include “gl/wglew.h”
#include <GL/gl.h>
#include <GL/glu.h>
#include <glext.h>
#include <wglext.h>
#include <windows.h>

i’m using the tutorial from here:

http://www.opengl.org/wiki/Tutorial:_OpenGL_3.1_The_First_Triangle_(C%2B%2B/Win)

and here’s my initilization:

GLuint PixelFormat;
WNDCLASS wc;
DWORD dwExStyle;
DWORD dwStyle;
RECT WindowRect;
WindowRect.left=(long)0;
WindowRect.right=(long)width;
WindowRect.top=(long)0;
WindowRect.bottom=(long)height;

fullscreen = _fullscreen;

hInstance			= GetModuleHandle(NULL);		
wc.style			= CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc		= (WNDPROC)WndProc;		
wc.cbClsExtra		= 0;									
wc.cbWndExtra		= 0;									
wc.hInstance		= hInstance;							
wc.hIcon			= LoadIcon(NULL, IDI_WINLOGO);			
wc.hCursor			= LoadCursor(NULL, IDC_ARROW);			
wc.hbrBackground	= NULL;									
wc.lpszMenuName		= NULL;								
wc.lpszClassName	= "OpenGL";							

if (!RegisterClass(&wc))				
{
	MessageBox(NULL,"Failed To Register The Window Class.","ERROR",MB_OK|MB_ICONEXCLAMATION);
	return FALSE;								
}

if (fullscreen)										
{
	DEVMODE dmScreenSettings;				
	memset(&dmScreenSettings,0,sizeof(dmScreenSettings));
	dmScreenSettings.dmSize=sizeof(dmScreenSettings);	
	dmScreenSettings.dmPelsWidth	= width;			
	dmScreenSettings.dmPelsHeight	= height;			
	dmScreenSettings.dmBitsPerPel	= bits;				
	dmScreenSettings.dmFields       = DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;


	if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)
	{

		if (MessageBox(NULL,"The Requested Fullscreen Mode Is Not Supported By

Your Video Card. Use Windowed Mode Instead?",“XYZ3D”,MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
{
fullscreen=FALSE;
}
else
{
MessageBox(NULL,“Program Will Now Close.”,“ERROR”,MB_OK|MB_ICONSTOP);
return FALSE;
}
}
}

if (fullscreen)	
{
	dwExStyle=WS_EX_APPWINDOW;							
	dwStyle=WS_POPUP;										
	ShowCursor(TRUE);							
}
else
{
	dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;		
	dwStyle=WS_OVERLAPPEDWINDOW;					
}

AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle);		


if (!(hWnd=CreateWindowEx(dwExStyle,							
							"OpenGL",							
							title,								
							dwStyle |						
							WS_CLIPSIBLINGS |					
							WS_CLIPCHILDREN,				
							0, 0,							
							WindowRect.right-WindowRect.left,	
							WindowRect.bottom-WindowRect.top,	
							NULL,							
							NULL,							
							hInstance,						
							NULL)))						
{
	closeWindow();							
	MessageBox(NULL,"Window Creation Error.","ERROR",MB_OK|MB_ICONEXCLAMATION);
	return FALSE;							
}

static	PIXELFORMATDESCRIPTOR pfd=		
{
	sizeof(PIXELFORMATDESCRIPTOR),			
	1,										
	PFD_DRAW_TO_WINDOW |					
	PFD_SUPPORT_OPENGL |					
	PFD_DOUBLEBUFFER,						
	PFD_TYPE_RGBA,							
	bits,									
	0, 0, 0, 0, 0, 0,							
	0,										
	0,										
	0,										
	0, 0, 0, 0,								
	16,										
	0,										
	0,										
	PFD_MAIN_PLANE,						
	0,										
	0, 0, 0									
};

if (!(hDC=GetDC(hWnd)))						
{
	closeWindow();							
	MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
	return FALSE;							
}

if (!(PixelFormat=ChoosePixelFormat(hDC,&pfd)))
{
	closeWindow();							
	MessageBox(NULL,"Can't Find A Suitable PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
	return FALSE;								
}

if(!SetPixelFormat(hDC,PixelFormat,&pfd))	
{
	closeWindow();							
	MessageBox(NULL,"Can't Set The PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);
	return FALSE;						
}

HGLRC tempContext;

if (!(tempContext=wglCreateContext(hDC)))			
{
	closeWindow();							
	MessageBox(NULL,"Can't Create A GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
	return FALSE;								
}

if(!wglMakeCurrent(hDC,tempContext))				
{
	closeWindow();								
	MessageBox(NULL,"Can't Activate The GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);
	return FALSE;							
}

if (glewInit() != GLEW_OK)
{
	MessageBox(NULL,"Cannot initialize Glew","XYZ3D",MB_OK|MB_ICONEXCLAMATION);
}

int attribs[] =
{
	WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
	WGL_CONTEXT_MINOR_VERSION_ARB, 1,
	WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
	0
};

//PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB = null;

if(wglewIsSupported("WGL_ARB_create_context") == 1)
{
	hRC = wglCreateContextAttribsARB(hDC,0, attribs);                                   //<<-----------Here //is the error
	wglMakeCurrent(NULL,NULL);
	wglDeleteContext(tempContext);
	wglMakeCurrent(hDC, hRC);
	MessageBox(NULL,"OpenGL Rendering Context v3.1","XYZ3D",MB_OK|MB_ICONEXCLAMATION);
}
else
{	//It's not possible to make a GL 3.x context. Use the old style context (GL 2.1 and before)
	hRC = tempContext;
	MessageBox(NULL,"OpenGL Rendering Context v2.1","XYZ3D",MB_OK|MB_ICONEXCLAMATION);
}

ShowWindow(hWnd,SW_SHOW);					
SetForegroundWindow(hWnd);				
SetFocus(hWnd);							
XYZ3DRenderer::Refresh(width, height);				

return TRUE;

thanks in advance