Wizard Scroll Position

I have a page that contains a asp:Wizard control.
I set MaintainScrollPositionOnPostback = true for the page.
When the wizard proceeds to the next step, the scroll position from the previous step is maintained.
How can I make the scroll position to be at the top for a new step? and maintain it when it postback to to same step (like when there are validation errors).
thanks  
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