Forms Data Controls :: Add Dynamic Row In Repeater?

In my project i have and repeater control in wich i m giveing templete of table formate like this

<asp:Repeater ID="DataList" runat="server">
<HeaderTemplate>
<table cellspacing="0" class="dataTable myClients" id="clientListTable" style="width:100%">
<tr>
<th>firstname</th>
<th>Phone</th>
<th>Email</th>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr >
<td><a <%# Eval("ID") %>"><%# Eval("FirstName") %> <%# Eval("LastName") %></a></td>
<td><%# Eval("WPhone")%></td>
<td><%# Eval("Email")%></td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>

i want when user click on row of repeater, then selected users detail will be shown in next <tr> so i want dynamic row should generate which hold details of client.