sending event to the server

[elic05]

i have a repeater
i want that a click will posr to the sever some data


the repeater

<asp:Repeater ID="Repeater3" runat="server" DataSourceID="SqlDataSource3">
                            <HeaderTemplate>
                            <ul class="titles">
                            </HeaderTemplate>
                            <ItemTemplate>
                                                        <li ><a href="#" runat="server" ><%#Eval("title")%></a></li>
                            </ItemTemplate>
                            <FooterTemplate>
                            </ul>
                            </FooterTemplate>
                            </asp:Repeater>

i get another field from the datasource - the title id
i want that when the a (link) clicked the code behind (vb.net) will know that

how do i do that