PLEASE!! :)

This has been driving me crazy for the entire day.

I am working with a control on an .ascx page (from the Catalook module)

More or less I needed to edit some of the text that the label was spitting out in javascript.  I got the jave script to work but cannot pass the name of the control to javascript. 

Here is what I have(this is inside a datagrid)

<asp:label id="lblgridPrice" CssClass="invisible" Runat="server" /> </asp:panel>
                                    <script language="JavaScript" type="text/javascript">SetValue('<%= lblgridPrice.ClientID %>');</script>

Every time it tells me that it is null....!!!!!!!!!!!!!!!!!!

I have Googled and Googled and every place I find says it should work.  But is is not.  I have tried every varation that I can think of, no luck.

What am I missing? 

Any help would be surely appreciated as I have 11 hours into changing this crappy control from Catalook.  For the record Catalook incorrectly advertises that they support "bulk pricing" 

Thanks in advance.