// JavaScript Document

$(document).ready(function() {         
       
    //Execute the slideShow, set 4 seconds for each images   
    slideShow(2500);   
  
});   
  
function slideShow(speed) {   
  
  
    //append a LI item to the UL list for displaying caption   
    $('ul.slideshow').append('<LI id=slideshow-caption class=caption><DIV class=slideshow-caption-container><H3></H3><P></P></DIV></LI>');   
  
    //Set the opacity of all images to 0   
    $('ul.slideshow li').css({opacity: 0.0});   
       
    //Get the first image and display it (set it to full opacity)   
    $('ul.slideshow li:first').css({opacity: 1.0});   
       
    //Get the caption of the first image from REL attribute and display it   
    $('#slideshow-caption h3').html($('ul.slideshow a:first').find('img').attr('title'));   
    $('#slideshow-caption p').html($('ul.slideshow a:first').find('img').attr('alt'));   
           
    //Display the caption   
    $('#slideshow-caption').css({opacity: 0.55, bottom:0});   
       
    //Call the gallery function to run the slideshow       
    var timer = setInterval('gallery()',speed);   
       
   //pause the slideshow on mouse over   
    $('ul.slideshow').hover(   
        function () {   
            clearInterval(timer);      
        },     
        function () {   
            timer = setInterval('gallery()',speed);            
        }   
    );   
       
}   
  
function gallery() {   
  
  
    //if no IMGs have the show class, grab the first image   
    var current = ($('ul.slideshow li.show')?  $('ul.slideshow li.show') : $('#ul.slideshow li:first'));   
  
    //Get next image, if it reached the end of the slideshow, rotate it back to the first image   
    var next = ((current.next().length) ? ((current.next().attr('id') == 'slideshow-caption')? $('ul.slideshow li:first') :current.next()) : $('ul.slideshow li:first'));   
           
    //Get next image caption   
    var title = next.find('img').attr('title');    
    var desc = next.find('img').attr('alt');       
           
    //Set the fade in effect for the next image, show class has higher z-index   
    next.css({opacity: 0.0}).addClass('show').animate({opacity: 1.0}, 800);   
       
    //Hide the caption first, and then set and display the caption   
    $('#slideshow-caption').animate({bottom:-70}, 200, function () {   
            //Display the content   
            $('#slideshow-caption h3').html(title);   
            $('#slideshow-caption p').html(desc);                  
            $('#slideshow-caption').animate({bottom:0}, 500);      
    });        
 
    //Hide the current image   
   current.animate({opacity: 0.0}, 200).removeClass('show');   
  
}