how to do gridview view header freeze ?..

Question

 Dear All ,

               I want to do the Gridview Header Freeze..I had one Javascript

   

    <script src="JavaScript/jquery-1.4.1.min.js" type="text/javascript"></script>


    <script src="JavaScript/ScrollableGridViewPlugin_ASP.NetAJAXmin.js" type="text/javascript"></script>


    <script type="text/javascript">
        $(document).ready(function() {
            $('#<%=grdImmediate.ClientID %>').Scrollable({
                ScrollHeight: 250,
                IsInUpdatePanel: true
            });
        });
    </script>




               
                        The above  Coding Working fine but The Header not in the order..Its little bit moved between the Gridview Cell Data..i Would like to need solution for this issue...


Thanks in advance