// 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: '0px',

 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: 2,

 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, 2, 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)

 });

 }

 }