Mutual control between web windows

web| Control MICHAEL_WP: There is a question to ask, in asp.net how to do win form that multiple Windows interaction, I think a bit like through HttpHandler can do, but there is no better way.
Bigeagle:application
MICHAEL_WP: I don't know what I mean, it's like this, in WinForm we can click on the menu pop out a dialog box, this subform changes in the value of the set will affect the parent form immediately, But in ASP.net, even though I create an instance of a form, he doesn't have a show method, so it seems like only using HttpHandler to implement a class of CGI stuff.
Bigeagle: That's impossible.
MICHAEL_WP: Which means that this functionality is not implemented on the web ...
Bigeagle:http's characteristics determine this
MICHAEL_WP: Yes, thank you.
Bigeagle::)
MICHAEL_WP: Or just the question, I suddenly think that in JavaScript can achieve such a function, with the Var opener=window.open (' child.htm ', ' child ', '); What is the rationale for using Window.opener in a child window to manipulate a parent window?
Bigeagle: This is the function of IE itself