var FadeSlideShow = Fx.Elements.extend({

	options: {
		wait: false,
		_current: 0
	},

	initialize: function(){
		var options, elements;
		$each(arguments, function(argument, i){
			switch($type(argument)){
				case 'object': options = argument; break;
				default:
					var temp = $$(argument);
					elements = temp;
			}
		});
		this.elements = elements || [];
		this.setOptions(options);
		this._timeoutInterval = false;
		this.effects = {};
		this.effects.opacity = 'fullOpacity';
				
		if(this.elements[0])
		{
			this.elements[0].parentNode.style.visibility = 'visible';
		}
		
		this.elements.each(function(el, i){
			this.elements[i].fullOpacity = 1;
			if(i != this.options._current)
			{
				for (var fx in this.effects) el.setStyle(fx, 0);
				el.style.visibility = 'hidden';
			}
			else
			{
				for (var fx in this.effects) el.setStyle(fx, el[this.effects[fx]]);				
			}
		}, this);
	},

	fadeIn: function(index){
		index = ($type(index) == 'element') ? this.elements.indexOf(index) : index;
		var obj = {};
		obj[index] = {};
		for (var fx in this.effects) obj[index][fx] = this.elements[index][this.effects[fx]];
		return this.start(obj);
	},

	fadeOut: function(index){
		index = ($type(index) == 'element') ? this.elements.indexOf(index) : index;
		var obj = {};
		obj[index] = {};
		for (var fx in this.effects) obj[index][fx] = 0;
		return this.start(obj);
	},

	slide: function(){
		var _next = this.options._current + 1;
		if(_next >= this.elements.length)		
		{
			_next = 0;
		}
		var obj = {};
		obj[_next] = {};
		for (var fx in this.effects) obj[_next][fx] = this.elements[_next][this.effects[fx]];
		obj[this.options._current] = {};
		for (var fx in this.effects) obj[this.options._current][fx] = 0;		
		this.options._current = _next;		
		return this.start(obj);
	},
	slide_back: function(){
		var _next = this.options._current - 1;
		if(_next < 0)		
		{
			_next = this.elements.length-1;
		}
		
		var obj = {};
		obj[_next] = {};
		for (var fx in this.effects) obj[_next][fx] = this.elements[_next][this.effects[fx]];
		obj[this.options._current] = {};
		for (var fx in this.effects) obj[this.options._current][fx] = 0;		
		this.options._current = _next;		
		return this.start(obj);
	},

	slideTo: function(_next){
		if (_next != this.options._current)
		{
			var obj = {};
			obj[_next] = {};
			for (var fx in this.effects) obj[_next][fx] = this.elements[_next][this.effects[fx]];
			obj[this.options._current] = {};
			for (var fx in this.effects) obj[this.options._current][fx] = 0;		
			this.options._current = _next;		
			return this.start(obj);
		}
	}
	
});