function ShowHideDiv(DivName,ShowHide,APos,NPos)
{
	if (ShowHide==0)
	{
		if (document.getElementById('lyr'+DivName) != null){document.getElementById('lyr'+DivName).style.display='';}
		document.getElementById(DivName).style.backgroundPosition=NPos;
	}
	else
	{
		if (document.getElementById('lyr'+DivName) != null){document.getElementById(DivName).style.backgroundPosition=APos;}
		document.getElementById('lyr'+DivName).style.display='none';
	}
}