How to maintain scroll position when datagrid is in div tag

Hi,
  i have a two panels and a datagrid which is in a div tag . The datagrid is in down second panel.

 when i click on a button in second panel, The scroll is not maintained even if i make smartnavigation true. The page scroll up above top of the page to the first panel.

Can anyone suggest the code which maintains the scroll position down at the bottom of the second panel.

Any comments and suggestions are welcome.

Thanks in advance