Handle events in the capturing phase with jQuery. Probably has bugs.

jquery.capture.js

$.fn.capture = function(eventName) {
  var selector, handler;

  if (arguments.length === 2) {
    handler = arguments[1];
  } else {
    selector = arguments[1];
    handler = arguments[2];
  }

  var dispatchEvent = function(syntheticEvent, delegateTarget) {
    var nativeEvent = syntheticEvent.originalEvent;
    var currentTarget;
    if (selector) {
      currentTarget = $(nativeEvent.target.closest(selector))[0];
    } else {
      currentTarget = delegateTarget;
    }

    if (!currentTarget) return;

    var jqueryEvent = $.extend($.event.fix(nativeEvent), {
      currentTarget: currentTarget,
      delegateTarget: delegateTarget,
      target: nativeEvent.target
    });

    var result = handler.call(currentTarget, jqueryEvent);

    if (result === false) {
      jqueryEvent.stopPropagation();
      jqueryEvent.preventDefault();
    }
  };

  this.each(function() {
    var $this = $(this);
    var $captureEventListener = $this.data('_capture_event_listener');
    if (!$captureEventListener) {
      $captureEventListener = $(new Object());
      $this.data('_capture_event_listener', $captureEventListener);
    }

    if (!$captureEventListener.prop(eventName)) {
      $captureEventListener.prop(eventName, true);
      this.addEventListener(eventName, function(e) {
        $captureEventListener.triggerHandler($.Event(e), this);
      }, true);
    }

    $captureEventListener.on(eventName, dispatchEvent);
  });

  return this;
};