I have just started using the WDW and am trying to achieve 2 things, but have been unsuccessful:

1. Close the WDW using javascript from within the web page displayed in the WDW itself. When the user clicks on a button, for instance.
2. Generally communicate data back to the "parent' or "opener" web page.

I first tried to get hold of the WDWcontrol in javascript using $find(), per the documentation, but $find() returned null. On further examination, I discovered that the window.document only contained the html for stuff "inside" the WDW. The reason $find() wasn't helping me was that I was on a web page that behaved as if it were inside a new browser window instance.

In other situations when I have opened another browser window myself, I have called back to a javascript function on the parent window using the window.opener property. However, this property was null. It was my understanding - again from the documentation - that the WDW used a div and display:none or something, to get around popup blockers; but this was not the case. Yet it's not "opening" a window in the conventional sense, either. Obviously I'm not understanding the architecture, here. Prolly some AJAX callback mechanism that is beyond my current skills.

Can somebody help me achive goals 1 and 2 above? Thanks.

-BillyB