[This documentation is preliminary and is subject to change.]

Sets or retrieves the currently active child element.

Syntax

<element aria-activedescendant="p" ... >

object.setAttribute("aria-activedescendant",value);var value = object.getAttribute("aria-activedescendant");

Property values

Type: String

The id property value of the descendent element.

Remarks

To simplify keyboard navigation, an element that gains focus may specify the currently active child element by id. The container element should change the designated descendant during a keypress event. The container should also ensure that the current child has a style that visibly shows it is active, such as an outline or different background color.

Note  For cross-browser compatibility, always use the WAI-ARIA attribute syntax to access and modify ARIA properties, for example object.setAttribute("aria-valuenow", newValue).

See also

Accessible Rich Internet Applications (ARIA)

Build date: 2/13/2012