Close Facebook Dialog (popup)

I am building an facebook app which runs in a tab of a site as an iframe.

for popups I use the recommended stuff from here:

when i open a popup like so:

var friend_url = "http://www.facebook.com/dialog/apprequests?app_id=**appid**&display=popup&开发者_如何学Goamp;redirect_uri=**canvasurl**&message=Mesage!"
window.open(friend_url, "Friends", "height=400,width=580,modal=yes,alwaysRaised=yes"); 

then a dialpg-popup opens. what I want now. if the user clicks, accept or cancel the dialog window should close. how can I do this?

thanks.

The page that you supply as the value of redirect_uri can issue the JavaScript command self.close(); and after the user selects "accept" or "cancel", Facebook will redirect to the supplied redirect_uri location, closing the window. Just make sure to do any processing you need to do re: error handling or processing the response, before you close the window. Once you do, it's gone!

Edited to reflect comment below:

var auth_win = window.open(friend_url, "Friends", options);

Then you'll need to detect somehow that the user's action is complete, and issue something like:

auth_win.close();

If you can't detect when the action is complete, there is some disconnect. If you mean that the redirect_uri is always your tab application, or your canvas URL, then you can add parameters to the query string, i.e. url?auth=complete or after a hash, i.e. url#authorized. Then once this is detected, close the window referenced by the variable.