// JavaScript Document
$(document).ready(function() {                 
	//Execute the slideShow, set 16 seconds for each images     
	slideShow(10000);  
});

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: 0.7, 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}, 1000);
	
	//Hide the caption first, and then set and display the caption
	$('#slideshow-caption').slideToggle(300, function () {
			$('#slideshow-caption h3').html(title);
			$('#slideshow-caption p').html(desc);
			$('#slideshow-caption').slideToggle(500);
			});
	
	//Hide the current image
	current.animate({opacity: 0.0}, 1000).removeClass('show');
}