Logout from application using Facebook a/c

logoutFacebook

//logout mehthod========================*******************===============
- (void)logOutButtonPressed {


	NSLog(@"logout");
	
	fbGraph.accessToken = nil;
	NSHTTPCookie *cookie;
	NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
	for (cookie in [storage cookies])
	{
		NSString* domainName = [cookie domain];
		NSRange domainRange = [domainName rangeOfString:@"facebook"];
		if(domainRange.length > 0)
		{
			[storage deleteCookie:cookie];
		}
		
	}
	

	
	
	[self loginButtonPressed:nil];
	


}