function slideShow(speed) {  

    $('ul#photo-centrale li').css({opacity: 0.0});  

    $('ul#photo-centrale li:first').css({opacity: 1.0});  
    
    var timer = setInterval('gallery()',speed);  

    $('ul#photo-centrale').hover(  
        function () {  
            clearInterval(timer);     
        },    
        function () {  
            timer = setInterval('gallery()',speed);           
        }  
    );    
} 

function gallery() {  

    var current = ($('ul#photo-centrale li.show')?  $('ul#photo-centrale li.show') : $('#ul#photo-centrale li:first'));  
  
    var next = ((current.next().length) ? ((current.next().attr('id') == 'slideshow-caption')? $('ul#photo-centrale li:first') :current.next()) : $('ul#photo-centrale li:first'));  
          
  
    var title = next.find('img').attr('title');   
    var desc = next.find('img').attr('alt');      
          
    next.css({opacity: 0.0}).addClass('show').animate({opacity: 1.0}, 1000);  
      
    current.animate({opacity: 0.0}, 1000).removeClass('show');   
}


$(document).ready(function(){
	slideShow(4000);	
});