make postback go to top of page

I have a control that needs to post back to the top of the page. I have a good snippet from a member here:
chetan.sarode:
http://www.eggheadcafe.com/tutorials/aspnet/7dd57635-0587-42ba-ae73-f52449e653bf/aspnet-ajax-maintain-scr.aspx
http://forums.asp.net/p/1150033/1873660.aspx
http://aspnet.4guysfromrolla.com/articles/111704-1.aspx
<pages smartNavigation="true" MaintainScrollPositionOnPostback=&q ...