Get Linkbutton Text Value from link button in Grid view

I have a link button thats text value is populated from a dataset value retrieved from a database.  When the user clicks on this link button I want to somehow capture the text value.  The trick is the linkbutton is within a usercontrol, and I want to do the processing from the user controls parent.
I may be able to do this via javascript with the OnClientClick;


<table>
<tr>
                            <td>
                                <asp:TextBox ID="txtmobile" runat="server" Width="239px"  TextMode="MultiLine"></asp:TextBox>
                                Enter Mobile numbers s ...