Version 0.3 of AS3Commons UI comes with the new layers package including managers dealing with main application overlays such as popups and tooltips.

PopUpManager

Manager class to create, place or remove popups throughout an application.

Add or remove some popups.

See the PopUpManager tutorial with in-depth explanation and example code.
See the various PopUpManager examples.

ToolTipManager

Manager class to create, place or remove tooltips throughout an application.

Hover the colored boxes to see the tooltips. Box #2 shows a larger tooltip. Move the boxes (and tooltips) towards the grey border to see the tooltips auto corrected and auto swapped.

See the ToolTipManager tutorial with in-depth explanation and example code.
See the various ToolTipManager examples.

Placement

Util class to relate the position of two display objects living in different branches (or the same branch) of the display list.

Change source and layer anchor in the right control panel. Move the source object towards the border to see the placement being auto corrected and anchors being swapped.

See the various Placement examples.