Changing Labels Text on MasterPage file
<p>Hi im unable to change the Text properties of my labels that are on the MasterPage and I don't know todo it this is what I've come up with but it doesn't work. It finds the control but doesn't change the text any ideas.</p>

<pre><code>    MasterPage master = Page.Master;
    AjaxControlToolkit.ModalPopupExtender popup1 = 
        master.FindControl("ModalPopupExtender1") as AjaxControlToolkit.ModalPopupExtender;
    Label lblMessage = master.FindControl("lblMessage") as Label;
    lblMessage.Text = msg;       
    Label MessageStatus = master.FindControl("lblMessageStatus") as Label;
    MessageStatus.Text = msgStatus;        
    popup1.Show();
</code></pre>
