Sharepoint 2010捕捉webpart刷新jquery/javascript。

I have a sharepoint page, generated from Dashboard Designer, with some scorecard webparts. In Sharepoint 2010, they are loaded and refreshed with ajax. How can I capture when a scorecard is fully loaded or refreshed? I have some jquery that cannot execute until the scorecards are fully loaded. But I dont know where to place an onload event, for example, or how to capture the ajax success callback.I have a sharepoint page, generated from Dashbo