/*
 * jQuery UI Accordion
 * 
 * Copyright (c) 2007, 2008 Jörn Zaefferer
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Accordion
 *
 * Depends:
 *  ui.core.js
 *
 * Revision: $Id: ui.accordion.js 5656 2008-05-21 19:35:33Z braeker $
 */


;(function($) {

    $.widget("ui.accordion", {
        init: function() {
            var options = this.options;
            
            if ( options.navigation ) {
                var current = this.element.find("a").filter(options.navigationFilter);
                if ( current.length ) {
                    if ( current.filter(options.header).length ) {
                        options.active = current;
                    } else {
                        options.active = current.parent().parent().prev();
                        current.addClass("current");
                    }
                }
            }
            
            // calculate active if not specified, using the first header
            options.headers = this.element.find(options.header);
            options.active = findActive(options.headers, options.active);
            
            // IE7-/Win - Extra vertical space in Lists fixed
            if ($.browser.msie) {
                this.element.find('a').css('zoom', '1');
            }
            
            if (!this.element.hasClass("ui-accordion")) {
                this.element.addClass("ui-accordion");
                $("<span class='ui-accordion-left'/>").insertBefore(options.headers);
                $("<span class='ui-accordion-right'/>").appendTo(options.headers);
                options.headers.addClass("ui-accordion-header").attr("tabindex", "0");
            }
            
            var maxHeight;
            if ( options.fillSpace ) {
                maxHeight = this.element.parent().height();
                options.headers.each(function() {
                    maxHeight -= $(this).outerHeight();
                });
                var maxPadding = 0;
                options.headers.next().each(function() {
                    maxPadding = Math.max(maxPadding, $(this).innerHeight() - $(this).height());
                }).height(maxHeight - maxPadding);
            } else if ( options.autoHeight ) {
                maxHeight = 0;
                options.headers.next().each(function() {
                    maxHeight = Math.max(maxHeight, $(this).outerHeight());
                }).height(maxHeight);
            }
        
            options.headers
                .not(options.active || "")
                .next()
                .hide();
            options.active.parent().andSelf().addClass(options.selectedClass);
            
            if (options.event) {
                this.element.bind((options.event) + ".accordion", clickHandler);
            }
        },
        activate: function(index) {
            // call clickHandler with custom event
            clickHandler.call(this.element[0], {
                target: findActive( this.options.headers, index )[0]
            });
        },
        destroy: function() {
            this.options.headers.next().css("display", "");
            if ( this.options.fillSpace || this.options.autoHeight ) {
                this.options.headers.next().css("height", "");
            }
            $.removeData(this.element[0], "accordion");
            this.element.removeClass("ui-accordion").unbind(".accordion");
        }
    });
    
    function scopeCallback(callback, scope) {
        return function() {
            return callback.apply(scope, arguments);
        };
    };
    
    function completed(cancel) {
        // if removed while animated data can be empty
        if (!$.data(this, "accordion")) {
            return;
        }
        
        var instance = $.data(this, "accordion");
        var options = instance.options;
        options.running = cancel ? 0 : --options.running;
        if ( options.running ) {
            return;
        }
        if ( options.clearStyle ) {
            options.toShow.add(options.toHide).css({
                height: "",
                overflow: ""
            });
        }
        $(this).triggerHandler("accordionchange", [options.data], options.change);
    }
    
    function toggle(toShow, toHide, data, clickedActive, down) {
        var options = $.data(this, "accordion").options;
        options.toShow = toShow;
        options.toHide = toHide;
        options.data = data;
        var complete = scopeCallback(completed, this);
        
        // count elements to animate
        options.running = toHide.size() === 0 ? toShow.size() : toHide.size();
        
        if ( options.animated ) {
            if ( !options.alwaysOpen && clickedActive ) {
                $.ui.accordion.animations[options.animated]({
                    toShow: jQuery([]),
                    toHide: toHide,
                    complete: complete,
                    down: down,
                    autoHeight: options.autoHeight
                });
            } else {
                $.ui.accordion.animations[options.animated]({
                    toShow: toShow,
                    toHide: toHide,
                    complete: complete,
                    down: down,
                    autoHeight: options.autoHeight
                });
            }
        } else {
            if ( !options.alwaysOpen && clickedActive ) {
                toShow.toggle();
            } else {
                toHide.hide();
                toShow.show();
            }
            complete(true);
        }
    }

    function clickHandler(event) {
        var options = $.data(this, "accordion").options;
        if (options.disabled) {
            return false;
        }
        
        // called only when using activate(false) to close all parts programmatically
        if ( !event.target && !options.alwaysOpen ) {
            options.active.parent().andSelf().toggleClass(options.selectedClass);
            var toHide = options.active.next(),
                data = {
                    instance: this,
                    options: options,
                    newHeader: jQuery([]),
                    oldHeader: options.active,
                    newContent: jQuery([]),
                    oldContent: toHide
                },
                toShow = (options.active = $([]));
            toggle.call(this, toShow, toHide, data );
            return false;
        }
        // get the click target
        var clicked = $(event.target);
        
        // due to the event delegation model, we have to check if one
        // of the parent elements is our actual header, and find that
        if ( clicked.parents(options.header).length ) {
            while ( !clicked.is(options.header) ) {
                clicked = clicked.parent();
            }
        }
        
        var clickedActive = clicked[0] == options.active[0];
        
        // if animations are still active, or the active header is the target, ignore click
        if (options.running || (options.alwaysOpen && clickedActive)) {
            return false;
        }
        if (!clicked.is(options.header)) {
            return;
        }
        
        // switch classes
        options.active.parent().andSelf().toggleClass(options.selectedClass);
        if ( !clickedActive ) {
            clicked.parent().andSelf().addClass(options.selectedClass);
        }
        
        // find elements to show and hide
        var toShow = clicked.next(),
            toHide = options.active.next(),
            //data = [clicked, options.active, toShow, toHide],
            data = {
                instance: this,
                options: options,
                newHeader: clicked,
                oldHeader: options.active,
                newContent: toShow,
                oldContent: toHide
            },
            down = options.headers.index( options.active[0] ) > options.headers.index( clicked[0] );
        
        options.active = clickedActive ? $([]) : clicked;
        toggle.call(this, toShow, toHide, data, clickedActive, down );
    
        return false;
    };
    
    function findActive(headers, selector) {
        return selector != undefined
            ? typeof selector == "number"
                ? headers.filter(":eq(" + selector + ")")
                : headers.not(headers.not(selector))
            : selector === false
                ? $([])
                : headers.filter(":eq(0)");
    }
    
    $.extend($.ui.accordion, {
        defaults: {
            selectedClass: "selected",
            alwaysOpen: true,
            animated: 'slide',
            event: "click",
            header: "a",
            autoHeight: true,
            running: 0,
            navigationFilter: function() {
                return this.href.toLowerCase() == location.href.toLowerCase();
            }
        },
        animations: {
            slide: function(options, additions) {
                options = $.extend({
                    easing: "swing",
                    duration: 300
                }, options, additions);
                if ( !options.toHide.size() ) {
                    options.toShow.animate({height: "show"}, options);
                    return;
                }
                var hideHeight = options.toHide.height(),
                    showHeight = options.toShow.height(),
                    difference = showHeight / hideHeight;
                options.toShow.css({ height: 0, overflow: 'hidden' }).show();
                options.toHide.filter(":hidden").each(options.complete).end().filter(":visible").animate({height:"hide"},{
                    step: function(now) {
                        var current = (hideHeight - now) * difference;
                        if ($.browser.msie || $.browser.opera) {
                            current = Math.ceil(current);
                        }
                        options.toShow.height( current );
                    },
                    duration: options.duration,
                    easing: options.easing,
                    complete: function() {
                        if ( !options.autoHeight ) {
                            options.toShow.css("height", "auto");
                        }
                        options.complete();
                    }
                });
            },
            bounceslide: function(options) {
                this.slide(options, {
                    easing: options.down ? "bounceout" : "swing",
                    duration: options.down ? 1000 : 200
                });
            },
            easeslide: function(options) {
                this.slide(options, {
                    easing: "easeinout",
                    duration: 700
                });
            }
        }
    });
    
    // deprecated, use accordion("activate", index) instead
    $.fn.activate = function(index) {
        return this.accordion("activate", index);
    };

})(jQuery);


var $j = jQuery.noConflict();

$j(document).ready(function($){
    var activeTab = '.first';

    // for page #anchors
    var curPage = '' + window.location + '';
    var thisPage = curPage;

    curPage = curPage.replace(/(\w[^#]+)\#(\w+)/g, "$2");

    if (thisPage.indexOf('#') != -1) {
        activeTab = ('.' + curPage);
    }


    $j('#content').accordion({
        active: activeTab,
        selectedClass: 'selected',
        header: 'h2.toggler',
        autoHeight: false
    });

});

$j(document).ready(function($){


});