/*
 * Superfish v1.4.1 - 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($){
    $.superfish = {};
    $.superfish.o = [];
    $.superfish.op = {};
    $.superfish.defaults = {
        hoverClass    : 'sfHover',
        pathClass    : 'overideThisToUse',
        delay        : 500,
        animation    : {opacity:'show'},
        speed        : 'normal',
        oldJquery    : false, /* set to true if using jQuery version below 1.2 */
        disableHI    : false, /* set to true to disable hoverIntent usage */
        // callback functions:
        onInit        : function(){},
        onBeforeShow: function(){},
        onShow        : function(){}, /* note this name changed ('onshow' to 'onShow') from version 1.4 onward */
        onHide        : function(){}
    };
    $.fn.superfish = function(op){
        var bcClass = 'sfbreadcrumb',
            over = function(){
                var $$ = $(this), menu = getMenu($$);
                getOpts(menu,true);
                clearTimeout(menu.sfTimer);
                $$.showSuperfishUl().siblings().hideSuperfishUl();
            },
            out = function(){
                var $$ = $(this), menu = getMenu($$);
                var o = getOpts(menu,true);
                clearTimeout(menu.sfTimer);
                if ( !$$.is('.'+bcClass) ) {
                    menu.sfTimer=setTimeout(function(){
                        $$.hideSuperfishUl();
                        if (o.$path.length){over.call(o.$path);}
                    },o.delay);
                }        
            },
            getMenu = function($el){ return $el.parents('ul.superfish:first')[0]; },
            getOpts = function(el,menuFound){ el = menuFound ? el : getMenu(el); return $.superfish.op = $.superfish.o[el.serial]; },
            hasUl = function(){ return $.superfish.op.oldJquery ? 'li[ul]' : 'li:has(ul)'; };

        return this.each(function() {
            var s = this.serial = $.superfish.o.length;
            var o = $.extend({},$.superfish.defaults,op);
            o.$path = $('li.'+o.pathClass,this).each(function(){
                $(this).addClass(o.hoverClass+' '+bcClass)
                    .filter(hasUl()).removeClass(o.pathClass);
            });
            $.superfish.o[s] = $.superfish.op = o;
            
            $(hasUl(),this)[($.fn.hoverIntent && !o.disableHI) ? 'hoverIntent' : 'hover'](over,out)
            .not('.'+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);
            
        }).addClass('superfish');
    };
    
    $.fn.extend({
        hideSuperfishUl : function(){
            var o = $.superfish.op,
                $ul = $('li.'+o.hoverClass,this).add(this).removeClass(o.hoverClass)
                    .find('>ul').hide().css('visibility','hidden');
            o.onHide.call($ul);
            return this;
        },
        showSuperfishUl : function(){
            var o = $.superfish.op,
                $ul = this.addClass(o.hoverClass)
                    .find('>ul:hidden').css('visibility','visible');
            o.onBeforeShow.call($ul);
            $ul.animate(o.animation,o.speed,function(){ o.onShow.call(this); });
            return this;
        }
    });
    
    $(window).unload(function(){
        $('ul.superfish').each(function(){
            $('li',this).unbind('mouseover','mouseout','mouseenter','mouseleave');
        });
    });
})(jQuery);