function ScrollUp(upBy, iv)
{
	var y = 0;
	var oiv = iv;

	if(window.pageYOffset) 
		y = window.pageYOffset;
	else if(document.body && document.body.scrollTop) 
		y = document.body.scrollTop;

	var d = ((y - upBy) >= 0)? (y - upBy) : 0;

	while(y > (d + 7))
	{
		setTimeout('window.scrollBy(0, -7)', iv);
		iv += oiv;
		y = (y - 7);
	}

	setTimeout('window.scrollBy(0, '+(-1)*(y - d)+')', iv);
}

function ScrollDown(downBy, iv)
{
	var oiv = iv;

	while(downBy > 0)
	{
		setTimeout('parent.window.scrollBy(0, 7)', iv);
		iv += oiv;
		downBy = (downBy - 7);
	}

	setTimeout('parent.window.scrollBy(0, '+downBy+')', iv);
}

//var scrdwn=ScrollDown(480, 20);