I use this with their CallBackPanel, but the panel is inside a div and it works well for me as the code is inside the script manager
<asp:ScriptManager ID="scriptmanager" runat="server" EnablePartialRendering="true" EnablePageMethods="true"/>
<script type="text/javascript">
var xPos, yPos;
var prm = Sys.WebForms.PageRequestManager.getInstance();
prm.add_beginRequest(BeginRequestHandler);
prm.add_endRequest(EndRequestHandler);
function BeginRequestHandler(sender, args) {
xPos = $get('div1').scrollLeft;
yPos = $get('div1').scrollTop;
}
function EndRequestHandler(sender, args) {
$get('div1').scrollLeft = xPos;
$get('div1').scrollTop = yPos;
}
</script>
Hope It Helps Someone ...
Bill Birt Sr.