HTML DOM activeElement Property

activeElementA read-only property that returns the current focus element in the document.

Syntax:

document.activeElement

Example

var x = document.activeElement.tagName;

The numbers in the table specify the first browser version that fully supports the activeElement property:

Property
activeElement	2	3	9.6	4	4

Return Value:	Reference to the element object that has the focus in the document
DOM Version:	DOM Level3