// accordion.js v2.0
    //
    // Copyright (c) 2007 stickmanlabs
    // Author: Kevin P Miller | http://www.stickmanlabs.com
    //
    // Accordion is freely distributable under the terms of an MIT-style license.
    //
    // I don't care what you think about the file size...
    // Be a pro:
    // http://www.thinkvitamin.com/features/webapps/serving-javascript-fast
    // http://rakaz.nl/item/make_your_pages_load_faster_by_combining_and_compressing_javascript_and_css_files
    //
     
    /*-----------------------------------------------------------------------------------------------*/
     
    if (typeof Effect == 'undefined')
    throw("accordion.js requires including script.aculo.us' effects.js library!");
     
    var accordion = Class.create();
    accordion.prototype = {
     
    //
    // Setup the Variables
    //
    showAccordion : null,
    currentAccordion : null,
    duration : null,
    effects : [],
    animating : false,
     
    //
    // Initialize the accordions
    //
    initialize: function(container, options) {
    if (!$(container)) {
    throw(container+" doesn't exist!");
    return false;
    }
     
    this.options = Object.extend({
    resizeSpeed : 8,
    classNames : {
    toggle : 'accordion_toggle',
    toggleActive : 'accordion_toggle_active',
    content : 'accordion_content'
    },
    defaultSize : {
    height : null,
    width : null
    },
    direction : 'vertical',
    onEvent : 'click'
    }, options || {});
     
    this.duration = ((11-this.options.resizeSpeed)*0.15);
     
    var accordions = $$('#'+container+' .'+this.options.classNames.toggle);
    accordions.each(function(accordion) {
    Event.observe(accordion, this.options.onEvent, this.activate.bind(this, accordion), false);
    if (this.options.onEvent == 'click') {
    accordion.onclick = function() {return false;};
    }
     
    if (this.options.direction == 'horizontal') {
    var options = {width: '0px', display:'none'};
    } else {
    var options = {height: '0px', display:'none'};
    }
    // options.merge({display: 'none'});
     
    this.currentAccordion = $(accordion.next(0)).setStyle(options);
    }.bind(this));
    },
     
    //
    // Activate an accordion
    //
    activate : function(accordion) {
    if (this.animating) {
    return false;
    }
     
    this.effects = [];
     
    this.currentAccordion = $(accordion.next(0));
    this.currentAccordion.setStyle({
    display: 'block'
    });
     
    this.currentAccordion.previous(0).addClassName(this.options.classNames.toggleActive);
     
    if (this.options.direction == 'horizontal') {
    this.scaling = $H({
    scaleX: true,
    scaleY: false
    });
    } else {
    this.scaling = $H({
    scaleX: false,
    scaleY: true
    });
    }
     
    if (this.currentAccordion == this.showAccordion) {
    this.deactivate();
    } else {
    this._handleAccordion();
    }
    },
    //
    // Deactivate an active accordion
    //
    deactivate : function() {
    var options = $H({
    duration: this.duration,
    scaleContent: false,
    transition: Effect.Transitions.sinoidal,
    queue: {
    position: 'end',
    scope: 'accordionAnimation'
    },
    scaleMode: {
    originalHeight: this.options.defaultSize.height ? this.options.defaultSize.height : this.currentAccordion.scrollHeight,
    originalWidth: this.options.defaultSize.width ? this.options.defaultSize.width : this.currentAccordion.scrollWidth
    },
    afterFinish: function() {
    this.showAccordion.setStyle({
    height: 'auto',
    display: 'none'
    });
    this.showAccordion = null;
    this.animating = false;
    }.bind(this)
    });
    // options.merge(this.scaling);
     
    this.showAccordion.previous(0).removeClassName(this.options.classNames.toggleActive);
     
    new Effect.Scale(this.showAccordion, 0, options.update(this.scaling).toObject());
    },
     
    //
    // Handle the open/close actions of the accordion
    //
    _handleAccordion : function() {
    var options = $H({
    sync: true,
    scaleFrom: 0,
    scaleContent: false,
    transition: Effect.Transitions.sinoidal,
    scaleMode: {
    originalHeight: this.options.defaultSize.height ? this.options.defaultSize.height : this.currentAccordion.scrollHeight,
    originalWidth: this.options.defaultSize.width ? this.options.defaultSize.width : this.currentAccordion.scrollWidth
    }
    });
    options.merge(this.scaling);
     
    this.effects.push(
    new Effect.Scale(this.currentAccordion, 100, options.update(this.scaling).toObject())
    );
     
    if (this.showAccordion) {
    this.showAccordion.previous(0).removeClassName(this.options.classNames.toggleActive);
     
    options = $H({
    sync: true,
    scaleContent: false,
    transition: Effect.Transitions.sinoidal
    });
    options.merge(this.scaling);
     
    this.effects.push(
    new Effect.Scale(this.showAccordion, 0, options.update(this.scaling).toObject())
    );
    }
     
    new Effect.Parallel(this.effects, {
    duration: this.duration,
    queue: {
    position: 'end',
    scope: 'accordionAnimation'
    },
    beforeStart: function() {
    this.animating = true;
    }.bind(this),
    afterFinish: function() {
    if (this.showAccordion) {
    this.showAccordion.setStyle({
    display: 'none'
    });
    }
    $(this.currentAccordion).setStyle({
    height: 'auto'
    });
    this.showAccordion = this.currentAccordion;
    this.animating = false;
    }.bind(this)
    });
    }
    }