// JavaScript Document
$(document).ready(function() {		
	
	//Execute the slideShow, set 4 seconds for each images
	slideShow(8000);

});

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--añadir la informacion de la foto
	//$('#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);			
		}
	);
	
	
	//if user clicked on next button
	$('#next').click(function() {
		
		//get the right position
		var left_indent = parseInt($('ul.slideshow').css('left')) - item_width;
		
		//slide the item
		$('ul.slideshow:not(:animated)').animate({'left' : left_indent}, 200, function () {
            
            //move the first item and put it as last item
			$('li.slideshow:last').after($('#li.slideshow:first'));                 	
			
			//set the default item to correct position
			$('ul.slideshow').css({'left' : left_value});
		
		});
		         
		//cancel the link behavior
		return false;
		
	});        
	
}

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
	//$('#slideshow-caption').animate({bottom:-70}, 300, function () {
			//Display the content
			//$('#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}, 1000).removeClass('show');

}