scrollable grid

 hello,

I have a grid in update panel.  in the grid have 4 column as itemtemplate. each coulmn has header template with label and textbox for searching purpose. using the scrollable grid on your site example everything seem to work except loose control of textbox in header when scrollable grid is called.  these textboxes call javascript when user enters something in it.

I spent many days look for solution but no luck. Looking for solution or alternative.