$(document).ready(function() {		
	
	//Execute the slideShow, set 4 seconds for each images
	slideShow(4000);	

});

function slideShow(speed) {

	$('.slideshow2').append('<ul class="slideshow-buttons"><li><a href="#" class="back">&laquo;</a></li><li><a href="#" class="forward">&raquo;</a></li></ul>');

	//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: 0.85, bottom:0});
	
	//Call the gallery function to run the slideshow	
	var timer = setInterval('gallery()',speed); 
	
	
  //Next Slide by calling the function  
  $('.forward').click(function () {  
     gallery(0);    
     return false;  
  });   
  
  //Previous slide by passing prev=1  
  $('.back').click(function () {  
     gallery(1);    
     return false;  
  });   	
	
	//pause the slideshow on mouse over
	$('ul.slideshow').hover(
		function () {
			clearInterval(timer);	
		}, 	
		function () {
			timer = setInterval('gallery()',speed);			
		}
	);
	
}

function gallery(prev) {

   
	//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'));


	if (prev == 1) {     
  //If the back button is pressed
	//Get previous image, if it reached the beggining of the slideshow, rotate it back to the third image...or whatever is before the caption 
  var next = ((current.prev().length == 0) ? $('ul.slideshow li:last').prev() : current.prev()); 	
	} else {
	//If the forward button is pressed or by default
	//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');
	
}

function control(direction){

//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
  if (direction == 'forward'){
  var next = ((current.next().length) ? ((current.next().attr('id') == 'slideshow-caption')? $('ul.slideshow li:first') :current.next()) : $('ul.slideshow li:first'));
  } else {
  var next = ((current.prev().length) ? ((current.prev().attr('id') == 'slideshow-caption')? $('ul.slideshow li:last') :current.prev()) : $('ul.slideshow li:last'));   
  }
		
	//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}, 4000);
	
	//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');


}