event.relatedTargetReturns: Element
Description: The other DOM element involved in the event, if any.
version added: 1.1.4event.relatedTarget
For mouseout, indicates the element being entered; for mouseover, indicates the element being exited.
Example:
On mouseout of anchors, alert the element type being entered.
$( "a" ).mouseout(function( event ) {
alert( event.relatedTarget.nodeName ); // "DIV"
});