Setting focus on top of the page on click of asp.net link button

I've a asp.net datagrid which shows customer order details. Pagination at the bottom of the grid is done using datalist and asp.net Linkbutton controls. Here is the code:
 <asp:DataList ID="DataList2" runat="server" CellPadding="1" CellSpacing="1" OnItemCommand="DataList2_ItemCommand&quo ...