var Fader = new Class({ 
        Implements: Options, 
        options: { 
                pause: 2000, 
                duration: 1000, 
                loop: true, 
                onComplete: Class.empty, 
                onStart: Class.empty 
        }, 
        initialize: function(container,options) { 
                this.setOptions(options); 
                this.container = $(container); 
                this.imgs = this.container.getElements('img'); 
                this.imgs.setStyles({ 
                        'position':'absolute', 
                        'top':0, 
                        'left':0, 
                        'opacity':0 
                }); 
                this.imgs[0].setStyle('opacity',1); 
                this.el = new Element('div',{'styles': { 
                        'position':'relative' 
            }}); 
            this.el.injectInside(this.container); 
            this.el.adopt(this.imgs); 
                this.next = 0; 
               // this.start(); 
        }, 
        start: function() { 
                this.show(); 
                this.periodical = this.show.bind(this).periodical(this.options.pause); 
        }, 
        stop: function() { 
                $clear(this.periodical); 
        }, 
        show: function() { 
        		//console.log("show");
                if (!this.options.loop && this.next==this.imgs.length-1) {
                	this.stop(); 
                } 
				
                this.next = (this.next==this.imgs.length-1)?0:this.next+1; 
                var prev = (this.next==0)?this.imgs.length-1:this.next-1; 
                this.imgs[this.next].fade('in'); 
                this.imgs[prev].fade('out'); 
        } 
});