var mouseoutEventName = 'mouseout.namespace';
$(document)
  .unbind(mouseoutEventName)
  .bind(mouseoutEventName, function () {
    var e = window.event,
  from = e.relatedTarget || e.toElement;
    if (!from || from.nodeName.toUpperCase() === "HTML") {
  //mouse move out window(document)
    }
});