var yPos4 = document.body.clientHeight - 420;
var xPos4 = 9;

var img4 = document.all.up2;

img4.style.top = yPos4;
img4.style.left = xPos4;

var lastScrollY4=0;

function changePosition4()
{
	diffY = document.body.scrollTop;
	percent = .1 * (diffY - lastScrollY4);
	if(percent > 0)
		percent = Math.ceil(percent);
	else
		percent = Math.floor(percent);
	img4.style.pixelTop += percent;
	lastScrollY4 = lastScrollY4 + percent;
}

window.setInterval("changePosition4()",1);

//  End -->