How to keep scrollbar position while Timer is updating UpdatePanel? To check code.

[dejanc]

Hello,
I need help.
I'm testing aps.net controls. I have add Repeater with some content. Repeater is inside of Panel which has Vertical ScrollBars. Timer1 is updating Repeater. As I need scrollbar on PageLoad on the bottom of Panel control, I have add javascript.
But, now problem is each time when try to move scrollbar up, Timer push it down. But, I would like somehow to keep in position if move it. I have try it with javascript code OnMouseOver with _StopTimer, but it effect only when mouse is over asp.net cotrol, not it's scrollbar.

Any idea? Note: I have been Googling, Yahooing many ours, and try different codes, but none was working. So, really need some new approach.
Note: MaintainScrollPositionOnPostback="true" is already added on page.

Thank you in advance for help.

<asp:ScriptManager ID="ScriptManager1" runat="server"/> 
    <script type="text/javascript"> 
        if (Sys != null) { 
            var instance = Sys.WebForms.PageRequestManager.getInstance(); 
 
            if (instance != null) { 
                instance.add_endRequest(function (sender, args) { 
                    SetScroll() 
                }); 
            } 
        } 
 
         function pageLoad() {
            window.onload = SetScroll;
        }
 
        function SetScroll() { 
            var objDiv = document.getElementById("<%=Panel1.ClientID%>"); 
            objDiv.scrollTop = objDiv.scrollHeight; 
        } 
 
     
 
</script> 
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional"> 
    <ContentTemplate> 
    <asp:Label ID="Label3" runat="server" Text="Label"></asp:Label> 
          <asp:Timer ID="Timer1" runat="server" Interval="1000"> 
          </asp:Timer> 
           </ContentTemplate> 
    </asp:UpdatePanel> 
 
<asp:Panel ID="Panel1" runat="server" ScrollBars="Auto" Height="193px"  
        Width="467px" BorderColor="#66CCFF" BorderStyle="Solid" BorderWidth="1px"> 
    <asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional"> 
    <ContentTemplate> 
<asp:Repeater ID="Repeater1" runat="server"> 
    <ItemTemplate> 
    <div style="font-family: calibri; color: #000099;"> 
             TEST 
                </BR> 
             TEST 
                </BR> 
             TEST 
                </BR> 
             TEST 
                </BR> 
             TEST 
                </BR> 
             TEST 
                </BR> 
             TEST 
                </BR> 
             TEST 
                </BR> 
             TEST 
                </BR> 
               </asp:Repeater>  
</ContentTemplate> 
    <Triggers> 
<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" /> 
</Triggers> 
    </asp:UpdatePanel> 
      </asp:Panel>