var mootabs = new Class({
	
	initialize: function(element, options) {
		this.options = Object.extend({
			width:'300px',
			height:'200px',
			changeTransition:Fx.Transitions.Bounce.easeOut,
			duration:1000,
			mouseOverClass:'active',
			activateOnLoad:'first',
			useAjax:false,
			ajaxUrl:'',
	                ajaxOptions: {method: 'get'},
			ajaxLoadingText:'Loading...'
		}, options || {});
		
		this.el = $(element);
		this.elid = element;
		
		this.el.setStyles({
			height: this.options.height,
			width: this.options.width
		});
		
		this.titles = $$('#' + this.elid + ' ul.mootabs_title li');
		this.panelHeight = this.el.getSize().size.y - (this.titles[0].getSize().size.y + 4);
		this.panels = $$('#' + this.elid + ' .mootabs_panel');

		
		this.panels.setStyle('height', this.panelHeight);
		
		this.titles.each(function(item) {
			item.addEvent('click', function(){
					item.removeClass(this.options.mouseOverClass);
					this.activate(item);
				}.bind(this)
			);
			
			item.addEvent('mouseover', function() {
				if(item != this.activeTitle)
				{
					item.addClass(this.options.mouseOverClass);
				}
			}.bind(this));
			
			item.addEvent('mouseout', function() {
				if(item != this.activeTitle)
				{
					item.removeClass(this.options.mouseOverClass);
				}
			}.bind(this));
		}.bind(this));
		
		
		if(this.options.activateOnLoad != 'none')
		{
			if(this.options.activateOnLoad == 'first')
			{
				this.activate(this.titles[0], true);
			}
			else
			{
				this.activate(this.options.activateOnLoad, true);	
			}
		}
	},
	
	activate: function(tab, skipAnim, accountID, tab_var, sort_order, records_start){
		if(! $defined(skipAnim))
		{
			skipAnim = false;
		}
                if(! $defined(accountID))
                {
                        accountID = false;
                }

                if(! $defined(tab_var))
                {
                        tab_var = false;
                }

                if(! $defined(sort_order))
                {
                        sort_order = false;
                }
                if(! $defined(records_start))
                {
                        records_start = false;
                }

	 	if($type(tab) == 'string') 
		{
			myTab = $$('#' + this.elid + ' ul li').filterByAttribute('title', '=', tab)[0];
			tab = myTab;
		}
		
		if($type(tab) == 'element')
		{
			var newTab = tab.getProperty('title');
			this.panels.removeClass('active');
			
			this.activePanel = this.panels.filterById(newTab)[0];
			
			this.activePanel.addClass('active');
			
			if(this.options.changeTransition != 'none' && skipAnim==false)
			{
				this.panels.filterById(newTab).setStyle('height', 0);
				var changeEffect = new Fx.Elements(this.panels.filterById(newTab), {duration: this.options.duration, transition: this.options.changeTransition});
				changeEffect.start({
					'0': {
						'height': [0, this.panelHeight]
					}
				});
			}
			
			this.titles.removeClass('active');
			
			tab.addClass('active');
			
			this.activeTitle = tab;
			
			if(this.options.useAjax)
			{
			  this._getContent(accountID,tab_var,sort_order,records_start);
			}
		}
	},
	
	_getContent: function(accountID, tab_var, sort_order, records_start){
		this.activePanel.setHTML(this.options.ajaxLoadingText);
		var newOptions = {update: this.activePanel.getProperty('id')};
		this.options.ajaxOptions = Object.extend(this.options.ajaxOptions, newOptions || {});

	if (accountID) {
             	var tabRequest = new Ajax(this.options.ajaxUrl + '?records_start=' + records_start + '&sort_order=' + sort_order + '&accountID='+ accountID + '&tab=' + this.activeTitle.getProperty('title'), this.options.ajaxOptions);
	} else if (document.form5) { 
		var tabRequest = new Ajax(this.options.ajaxUrl + '?records_start=' + records_start + '&sort_order=' + sort_order + '&accountID='+ document.form5.account_pass.value + '&tab=' + this.activeTitle.getProperty('title'), this.options.ajaxOptions);
        } else {
                var tabRequest = new Ajax(this.options.ajaxUrl + '?tab=' + this.activeTitle.getProperty('title'), this.options.ajaxOptions);
	}		
		tabRequest.request();

	},

	
	addTab: function(title, label, content){
		//the new title
		var newTitle = new Element('li', {
			'title': title
		});
		newTitle.appendText(label);
		this.titles.include(newTitle);
		$$('#' + this.elid + ' ul').adopt(newTitle);
		newTitle.addEvent('click', function() {
			this.activate(newTitle);
		}.bind(this));
		
		newTitle.addEvent('mouseover', function() {
			if(newTitle != this.activeTitle)
			{
				newTitle.addClass(this.options.mouseOverClass);
			}
		}.bind(this));
		newTitle.addEvent('mouseout', function() {
			if(newTitle != this.activeTitle)
			{
				newTitle.removeClass(this.options.mouseOverClass);
			}
		}.bind(this));
		//the new panel
		var newPanel = new Element('div', {
			'style': {'height': this.options.panelHeight},
			'id': title,
			'class': 'mootabs_panel'
		});
		if(!this.options.useAjax)
		{
			newPanel.setHTML(content);
		}
		this.panels.include(newPanel);
		this.el.adopt(newPanel);
	},
	
	removeTab: function(title){
		if(this.activeTitle.title == title)
		{
			this.activate(this.titles[0]);
		}
		$$('#' + this.elid + ' ul li').filterByAttribute('title', '=', title)[0].remove();
		
		$$('#' + this.elid + ' .mootabs_panel').filterById(title)[0].remove();
	},
	
	next: function(){
		var nextTab = this.activeTitle.getNext();
		if(!nextTab) {
			nextTab = this.titles[0];
		}
		this.activate(nextTab);
	},
	
	previous: function(){
		var previousTab = this.activeTitle.getPrevious();
		if(!previousTab) {
			previousTab = this.titles[this.titles.length - 1];
		}
		this.activate(previousTab);
	}
});