Hiding a button when hiding rows

Hi Guys,

Can someone help me out with the following.

I've put a button on a sheet with subtotals (+ & - in the left hand column) and when I hide a group row using the '-' button, the button in the cell that's been hidden stays visible.

Is it possible to associate the button with a cell and when the row is hidden the button is also hidden.

Thanks,
Richard.