adding a row in table dynamically

Hi all,

I have a table with 4 cells and three rows. All rows have a textbox in it. I have a button at the top. I want to add a new row in that table when that button ic clcikded with same formatting as above row. Above row format is like this.
<tr valign="top">
<td>1.
</td>
<td align="left">
<asp:TextBox ID="txtC1Fname" runat="server" Width="150px"></asp:TextBox>
</td>
<td align="left">
<asp:TextBox ID="txtC1LName" runat="server" Width="150px"></asp:TextBox>
</td>
<td align="left">
<asp:TextBox ID="txtC1DOB" runat="server" Width="150px"></asp:TextBox>
</td>
</tr>
How Can I do this ?
 
Regards,
Asif Hameed
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