How to implement notification on Master Page Like Facebook

Question

I am implementing Notification like facebook on my master page by using UpdatePanel and Timer But it is updating whole web application. Any one can tell me how may i prevent it for updating all other controls. My Code is:

 

<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="false">

<ContentTemplate>

<asp:DataList ID="DataList_Notification" runat="server" OnItemCommand="DataList_Notification_ItemCommand">

<ItemTemplate>

<table>

<tr>

<td>

<asp:HiddenField ID="ProductId" runat="server" Value='<%# Eval("ProductId") %>' />

</td>

<td>

<asp:HiddenField ID="OperationId" runat="server" Value='<%# Eval("OperationId") %>' />

</td>

<td>

<asp:HiddenField ID="ProficiencyId" runat="server" Value='<%# Eval("ProficiencyId") %>' />

</td>

<td>

<span class="label label-important"><i class="icon-bolt"></i></span>

<asp:LinkButton ID="lbnNotification" runat="server" Text='<%# Eval("PriceProficiency") %>' CommandName="Notification" ></asp:LinkButton>

<span class="small italic"></span>

</td>

</tr>

</table>

</ItemTemplate>

</asp:DataList>

</ContentTemplate>

<Triggers>

<asp:AsyncPostBackTrigger ControlID="Timer1" EventName="Tick" />

</Triggers>

</asp:UpdatePanel>

<asp:Timer ID="Timer1" runat="server" OnTick="Timer1_Tick" Interval="9000000" ></asp:Timer>