How use jQuery with scriptmanager and updatae panel?

How use jQuery with scriptmanager and updatae panel?

I have a form that contains a GridView and a DetailsView and nested update panels. I am going to manipulate some controls in DetailsView after postback but it seems that "$(document),ready" does not work in this situation and I cant handle elements that are present after "ajax" postback. I need that jQuery waits like what happens in  "$(document),ready".
Does anybody know any solution for this situation? I would be grateful to know.