Scroll to Any "Popup X" and Click It

Event Log:

Tests:

1. Click a "Popup X".
   Expected: a white popup window opens.


2. Click into the open popup window.
   Expected: the click target is reported in event log.


3. Open a "Popup". Click anywhere but not in a "Popup" or a scrollbar.
   Expected: the open popup closes.


4. Open a "Popup". Open another "Popup".
   Expected: first popup closes when second opens.


5. Make browser page small. Open a "Popup" outside the blue scroll-pane. Scroll the browser page.
   Expected: the open popup closes.


6. Open a "Popup" inside the blue scroll-pane. Scroll the pane.
   Expected: the open popup closes.