function setVariables() 
{
	if (document.layers) 
	{
		v=".top=0";
		dS="document.";
		sD="";
		y="window.pageYOffset";
	}
	else if (document.all)
	{
		v=".pixelTop=0";
		dS="";
		sD=".style";
		y="document.body.scrollTop";
	}
	else if (document.getElementById)
	{
		y="window.pageYOffset";
	}
}

function checkLocation()
{
	object="object1";
	yy=eval(y);
	if (document.getElementById)
	document.getElementById("object1").style.top=yy
	else
	eval(dS+object+sD+v+yy)
	setTimeout("checkLocation()",30);
}