// 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
//
/*
2-2-2008	Trey Aughenbaugh
made a few updates based on the comments from here.
http://stickmanlabs.com/2007/07/12/accordion-v10-released/#comments

-Updated it to work with new version of Prototype 1.6 and scriptaculous 1.8
-Updated to remove flicker
Added ability to have a callback function.
Useful for making AJAX calls.
Also Added the ability to specifiy which call will get executed each time.
Use the ID sttribute of the DIV for reference.  REQUIRED for callback.

/*
/*-----------------------------------------------------------------------------------------------*/

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,
	AlreadyActivated: [], //Added by Trey
	//  
	//  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',
			onActivate: null, //Added by Trey:  CallBack Function called when Tab is activated, sends element.
			RepeatActivate: {} //Added by Trey
		}, options || {});
		
		this.duration = ((11-this.options.resizeSpeed)*0.15);
		this.AlreadyActivated =[]; //Added by Trey
		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'};
			} else {
				var options = {height: '0px'};			
			}
			//options.merge({display: 'none'});			
			Object.extend(options, {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 = {
				scaleX: true,
				scaleY: false
			};
		} else {
			this.scaling = {
				scaleX: false,
				scaleY: true
			};			
		}
				 
		if (this.currentAccordion == this.showAccordion) {
		  this.deactivate();
		  //
		  // Close inner accordions if outer re-clicked
		  //
		  if (this.options.classNames.toggleActive == 'accordion_toggle_active') {			
			innerAccordion.each(function(accordion) {
					accordion.deactivate();
					});
		 Effect.Appear('footer', { duration: 0.5});
		 }
		 
		 //
		 // End re-click call
		 //
		} else {
		
//This was added by Trey Aughenbaugh
//Allows calling a function before activating a new Menu
		//var bolCall = true;
//		var elementid = $(this.currentAccordion).id
//		var AA = this.AlreadyActivated.indexOf(elementid);
//		var RA = this.options.RepeatActivate[elementid];
//		if (RA != undefined)
//		{
//			if ( AA != -1 )
//			{
//				if ( RA != undefined )
//				bolCall = RA;
//			}
//			else
//			{
//				this.AlreadyActivated.push(elementid);
//			}
//		}
// 
//		if (this.options.onActivate && bolCall)
//			this.options.onActivate(this.currentAccordion) ;
	 
//My Code Updates End Here.......................Orig Call Below.	
  		  if (this.options.classNames.toggleActive == 'vertical_accordion_toggle_active') {			
		  	Effect.Fade('footer', { duration: 0.5 });
		  }
		  if (this.options.classNames.toggleActive == 'accordion_toggle_active') {			
		  	Effect.Fade('footer', { duration: 0.5 });
		  }	  
		  this._handleAccordion();
		  
		  //
		  // Close inner accordions if outer clicked
		  //
		  if (this.options.classNames.toggleActive == 'accordion_toggle_active') {			
			// Set initial inner accordion height to zero - fixes IE jumpiness
			if (!this.showAccordion) {
				stabilize();				
			}
			else if (this.currentAccordion != this.showAccordion) {
				stabilize();				
			}
			
			innerAccordion.each(function(accordion) {
					accordion.deactivate();
					});			
		  }
		  //
		  // End of inner accordion close call		
		  //
		}
	},
	// 
	// Deactivate an active accordion
	//
	deactivate : function() {
		if (this.showAccordion) { //Prevents JS error when no accordion is open -- Added by TH
			var options = {
			  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() {
					try {
					this.showAccordion.setStyle({
						height: '0px',
						display: 'none'
					});				
					this.showAccordion = null;
					this.animating = false;
					} catch(err) {}
				}.bind(this)				
			};
			
			//options.merge(this.scaling);
			Object.extend(options, this.scaling);
		
			this.showAccordion.previous(0).removeClassName(this.options.classNames.toggleActive);
		
			new Effect.Scale(this.showAccordion, 0, options);
		}
	},

  //
  // Handle the open/close actions of the accordion
  //
	_handleAccordion : function() {
		
		
		var options = {
			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);
		Object.extend(options, this.scaling);
		
		this.effects.push(
			new Effect.Scale(this.currentAccordion, 100, options)
		);

		if (this.showAccordion) {
			this.showAccordion.previous(0).removeClassName(this.options.classNames.toggleActive);
			
			options = {
				sync: true,
				scaleContent: false,
				transition: Effect.Transitions.sinoidal
			};
			//options.merge(this.scaling);
			Object.extend(options, this.scaling);
			
			this.effects.push(
				new Effect.Scale(this.showAccordion, 0, options)
			);				
		}
		
    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)
		});
	}	
}

// Stabilizes outer accordion in IE by setting inner accordion heights to zero
function stabilize() {	
	var verticalNestedAccordions = $$('.vertical_accordion_toggle');	
	verticalNestedAccordions.each(function(accordion) {				
			if (accordion.className != 'vertical_accordion_toggle vertical_accordion_toggle_active') {				
				$(accordion.next(0)).setStyle({
				  height: '0px'
				});
			}
	});
}