Like jquery-ui scrollParent function except it works on jQuery objects containing multiple elements

jquery.scrollparent.js

/* like jquery-ui scrollParent function except it works on jQuery objects containing multiple elements */
(function ($) {
    $.fn.scrollParent = (function (overflowRegex) {
        return function () {
            return $($.unique(this.map(function () {
                var position = $(this).css('position'),
                    excludeStaticParent = position === 'absolute',
                    scrollParent = $(this).parents().filter(function() {
                        var parent = $(this);
                        if (excludeStaticParent && parent.css('position') === 'static') {
                            return false;
                        }
                        return (overflowRegex).test(parent.css('overflow') + parent.css('overflow-y') + parent.css('overflow-x'));
                    }).eq(0);
                return position === 'fixed' || !scrollParent.length ? $(this.ownerDocument || document) : scrollParent.get();
            }).get()));
        };
    })(/(auto|scroll)/);
})(jQuery);