var timer1;

//-=-=-=-=-=-=-=-=-=-=-=-=-=-= detect brwoser type -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==
bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
if (bName == "Microsoft Internet Explorer" && bVer >= 4) <!-- IE4 or greater -->
  bUser="IE"
else bUser="Netscape";


function StartScroll(direction)
{
	loop = true;
	timer1 = null;

	if (loop == true) 
	{
		
			var dirfactor
			
			if (direction == "up")
				dirfactor = 5;
			else
				dirfactor = -5;
			
			if (bUser == "IE")
			{
				var layertop = parseInt((ScrollLayer.style.top).replace("px", ""))
				if (layertop < 15 || dirfactor < 0)
					ScrollLayer.style.top = layertop + dirfactor;
			}
			else // (bUser = Netscape)
			{
				var layertop = parseInt((document.getElementById("ScrollLayer").style.top).replace("px", ""))	
				if (layertop < 15 || dirfactor < 0)
					document.getElementById("ScrollLayer").style.top = layertop + dirfactor;
			}
			
			timer1 = setTimeout("StartScroll('"+ direction +"')", 20);
	}
}

function StopScroll()
{
	loop = false;
	clearTimeout(timer1);
}


function ScrollToTop()
{
	if (bUser == "IE")
	{	ScrollLayer.style.top = 0;	}
	else
	{	document.getElementById("ScrollLayer").style.top = 0; 	}

}