window.addEvent('domready',function() {  
    /* settings */  
    var showDuration = 4950;  
    var container = $('slideshow-container');  
    var images = container.getElements('img');  
    var currentIndex = 0;  
    var interval;  
    /* opacity and fade */  
    images.each(function(img,i){  
        if(i > 0) {  
            img.set('opacity',0);  
        }  
    });  
    /* worker */  
    var show = function() {  
        images[currentIndex].fade('out');  
        images[currentIndex = currentIndex < images.length - 1 ? currentIndex+1 : 0].fade('in');  
    };  
    /* start once the page is finished loading */  
    window.addEvent('load',function(){  
        interval = show.periodical(showDuration);  
    });  
});