jQuery function to allow for nav menu's with flexible withs and dropdowns that can 'outgrow' their parent. Usage flexible_fixed_nav('#nav > ul > li');

Flexible fixed nav

function flexible_fixed_nav(selector) {
    var $items = $(selector);
    if (!$items.length) return;
    $items
        .each(
            function (index, parent) {
                var parentWidth  = $(parent).width();
                var childWidth   = 0; 
                var $childList   = $(parent).find('> ul');
                $childList.show();
                childWidth = $childList.width();
                $childList.css('display', '');
                $(parent).find('> ul').width(childWidth);
                $(parent).width(parentWidth);
            }
        );
}