Found JavaScript at http://osdir.com/ml/jQuery/2009-03/msg02823.html formatted for your pleasure

jquery.superfish-activated-on-click.js

/*
* Superfish v1.4.8 - jQuery menu widget
* Copyright (c) 2008 Joel Birch
*
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
* CHANGELOG: http://users.tpg.com.au/j_birch/plugins/superfish/changelog.txt
*/

; (function($) {
    $.fn.superfish = function(op) {

        var sf = $.fn.superfish,
        c = sf.c,
        menuActive = false,
        $arrow = $(['<span class="', c.arrowClass, '"> &#187;</span>'].join('')),
        click = function() {
            var $$ = $(this),
            menu = getMenu($$),
            o = sf.op;
            if (o.firstOnClick && !menuActive &&
            $$.parent()[0] == menu) {
                menuActive = true;
                clearTimeout(menu.sfTimer);

                $$.showSuperfishUl().siblings().hideSuperfishUl();
                return false;
                // prevent redirect to anchor target href
            }
        },
        over = function() {
            var $$ = $(this),
            menu = getMenu($$),
            o = sf.op;
            if (!o.firstOnClick || menuActive ||
            $$.parent()[0] != menu) {
                clearTimeout(menu.sfTimer);

                $$.showSuperfishUl().siblings().hideSuperfishUl();
            }
        },
        out = function() {
            var $$ = $(this),
            menu = getMenu($$),
            o = sf.op;
            clearTimeout(menu.sfTimer);
            menu.sfTimer = setTimeout(function() {

                o.retainPath = ($.inArray($$[0], o.$path) > -1);
                $$.hideSuperfishUl();
                if (o.$path.length &&
                $$.parents(['li.', o.hoverClass].join
                ('')).length < 1) {
                    over.call(o.$path);
                }
                else {
                    menuActive = false;
                }
            },
            o.delay);
        },
        getMenu = function($menu) {
            var menu =
            $menu.parents(['ul.', c.menuClass, ':first'].join(''))
            [0];
            sf.op = sf.o[menu.serial];
            return menu;
        },
        addArrow = function($a) {
            $a.addClass(c.anchorClass).append
            ($arrow.clone());
        };

        return this.each(function() {
            var s = this.serial = sf.o.length;
            var o = $.extend({},
            sf.defaults, op);
            o.$path =
            $('li.' + o.pathClass, this).slice(0, o.pathLevels).each
            (function() {

                $(this).addClass([o.hoverClass, c.bcClass].join(' '))

                .filter('li:has(ul)').removeClass(o.pathClass);
            });
            sf.o[s] = sf.op = o;

            $('li:has(ul)', this)[($.fn.hoverIntent && !o.disableHI) ? 'hoverIntent' : 'hover'](over, out)
            .click(click)
            .each(function() {
                if (o.autoArrows) addArrow(
                $('>a:first-child', this));
            })
            .not('.' + c.bcClass)
            .hideSuperfishUl();

            var $a = $('a', this);
            $a.each(function(i) {
                var $li = $a.eq(i).parents('li');

                $a.eq(i).focus(function() {
                    over.call($li);
                }).blur(function()
                {
                    out.call($li);
                });
            });
            o.onInit.call(this);

        }).each(function() {
            var menuClasses = [c.menuClass];
            if (sf.op.dropShadows && !($.browser.msie &&
            $.browser.version <
            7)) menuClasses.push(c.shadowClass);
            $(this).addClass(menuClasses.join(' '));
        });
    };

    var sf = $.fn.superfish;
    sf.o = [];
    sf.op = {};
    sf.IE7fix = function() {
        var o = sf.op;
        if ($.browser.msie && $.browser.version > 6 && o.dropShadows &&
        o.animation.opacity != undefined)
        this.toggleClass(sf.c.shadowClass + '-off');
    };
    sf.c = {
        bcClass: 'sf-breadcrumb',
        menuClass: 'sf-js-enabled',
        anchorClass: 'sf-with-ul',
        arrowClass: 'sf-sub-indicator',
        shadowClass: 'sf-shadow'
    };
    sf.defaults = {
        hoverClass: 'sfHover',
        pathClass: 'overideThisToUse',
        pathLevels: 1,
        delay: 800,
        animation: {
            opacity: 'show'
        },
        speed: 'normal',
        autoArrows: true,
        dropShadows: true,
        disableHI: false,
        // true disables hoverIntent detection
        onInit: function() {},
        // callback functions
        onBeforeShow: function() {},
        onShow: function() {},
        onHide: function() {},
        firstOnClick: false
        // true - open first level on click (like classic application menu)

    };
    $.fn.extend({
        hideSuperfishUl: function() {
            var o = sf.op,
            not = (o.retainPath === true) ? o.$path: '';
            o.retainPath = false;
            var $ul =
            $(['li.', o.hoverClass].join(''), this).add(this).not
            (not).removeClass(o.hoverClass)

            .find('>ul').hide().css('visibility', 'hidden');
            o.onHide.call($ul);
            return this;
        },
        showSuperfishUl: function() {
            var o = sf.op,
            sh = sf.c.shadowClass + '-off',
            $ul = this.addClass(o.hoverClass)

            .find('>ul:hidden').css('visibility', 'visible');
            sf.IE7fix.call($ul);
            o.onBeforeShow.call($ul);
            $ul.animate(o.animation, o.speed,
            function() {
                sf.IE7fix.call($ul);
                o.onShow.call($ul);
            });
            return this;
        }
    });

})(jQuery);