event.relatedTarget

event.relatedTarget ( ) Returns: Elementversion added: 1.1.4

Description: The other DOM element involved in the event, if any.

For mouseout, indicates the element being entered; for mouseover, indicates the element being exited.

Examples:

Example: On mouseout of anchors, alert the element type being entered. 

$( "a" ).mouseout(function( event ) {
  alert( event.relatedTarget.nodeName ); // "DIV"
});