$(document).ready(function(){

    //Execute the slideShow, set 4 seconds for each images
    slideShow(6000);
    
});

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"><h2></h2><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-child').css({
        opacity: 1.0
    });
    
    //Get the caption of the first image from REL attribute and display it
    $('#slideshow-caption h2').html($('ul.slideshow a:first-child').find('img').attr('title'));
    $('#slideshow-caption p').html($('ul.slideshow a:first-child').find('img').attr('alt'));
    
    //Display the caption
    $('#slideshow-caption').css({
        opacity: 1.0,
        left: 625
    });
    
    //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-child'));
    
    //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-child') : current.next()) : $('ul.slideshow li:first-child'));
    
    //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
    }, 500);
    
    //Hide the caption first, and then set and display the caption
    $('#slideshow-caption').animate({
        left: 923
    }, 400, function(){
        //Display the content
        $('#slideshow-caption h2').html(title);
        $('#slideshow-caption p').html(desc);
        $('#slideshow-caption').animate({
            left: 625
        }, 700);
    });
    
    //Hide the current image
    current.animate({
        opacity: 0.0
    }, 2000).removeClass('show');
    
}