0|1

Specifies when to display the info panel.

If set to 1, the info panel is displayed when the mouse enters the image map area (in case the image map has a non-empty, rollover_key attribute).

If set to 0, the info panel is triggered when the image map is selected (if the image map has a non-empty rollover_key and empty href attributes).

Ignored on touch devices, including touch-enabled desktop systems, and is automatically set to 0.