var SubmitFlag;

function ConfirmQuit(book)
{
	if (SubmitFlag == true)
	{
		return;
	}

	return "It will only take you a few minutes of your time to register for Infosecurity Magazine!"
}

function SetSubmitFlag()
{
	SubmitFlag = true;
	return;
}

function ClearSubmitFlag()
{
	SubmitFlag = false;
}