function flipLink(ID)
{
	if (eval("document.getElementById('if" + ID + "')"))
	{
		curStyle = document.getElementById('if' + ID).style.display;
		if (curStyle == "block")
			document.getElementById('if' + ID).style.display = "none";
		else
			document.getElementById('if' + ID).style.display = "block";
	}
}