FocusEvent relatedTarget Property

Get the related element of the element that triggered an onfocus event:

function getRelatedElement(event) {
alert(event.relatedTarget.tagName);
}

Description

The relatedTarget property returns the element related to the element that triggered the focus/blur event.

For onfocus and onfocusin events, the related element is the element that LOST focus.
For onblur and onfocusout events, the related element is the element that GOT focus.

This property is read-only.

event.relatedTarget

Return Value:	A reference to the related element, or null if there is no related element
DOM Version:	DOM Level 3 Events

event.relatedTarget is a DOM Level 3 (2004) feature.

It is fully supported in all modern browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	11