jQuery(document).ready(function($) {
   //Execute the slideShow, set 4 seconds for each images
   slideShow(6000);
});

function slideShow(speed) {

   var navText = "";
   var slideNum = jQuery('ul.slideshow li').size();
	
	//*************************
       jQuery('ul.slideshow li').removeClass('show');
   
	//append a LI item to the UL list for displaying caption
	jQuery('ul.slideshow').append('<li id="slideshow-caption" class="caption"><div class="slideshow-caption-container"><h3></h3><p></p></div></li>');
   jQuery('ul.slideshow').append('<li id="slideshow-nav"></li>');
   
	//Set the opacity of all images to 0
	jQuery('ul.slideshow li').css({opacity: 0.0});
	
	//Get the first image and display it (set it to full opacity)
	jQuery('ul.slideshow li:first').css({opacity: 1.0}).addClass('show');
	
	//Get the caption of the first image from REL attribute and display it
	jQuery('#slideshow-caption h3').html(jQuery('ul.slideshow a:first').find('img').attr('title'));
	jQuery('#slideshow-caption p').html(jQuery('ul.slideshow a:first').find('img').attr('alt'));   

   if( jQuery('#slideshow-caption p').html() == "" )
      jQuery('#slideshow-caption').height("35px");
   else
      jQuery('#slideshow-caption').height("70px");

   
   for( i=0; i<slideNum; i++ )
      navText = navText + "<div>" + (i+1) + "</div>";
      
   jQuery('#slideshow-nav').html(navText);
   
   jQuery('#slideshow-nav div:eq(0)').addClass("active");
      
	//Display the caption
	if( jQuery('#slideshow-caption h3').html() == "" )
	   jQuery('#slideshow-caption').css({opacity: 0, bottom:0});
	else
          jQuery('#slideshow-caption').css({opacity: 0.7, bottom:0});
       jQuery('#slideshow-nav').css({opacity: 1});

	
	//Call the gallery function to run the slideshow	
	var timer = setInterval('gallery()',speed);
	
	//pause the slideshow on mouse over
	jQuery('ul.slideshow li:not(#slideshow-nav)').hover(
		function () {
			clearInterval(timer);	
		}, 	
		function () {         
			timer = setInterval('gallery()',speed);			
		}
	);
   
   jQuery('#slideshow-nav div').click(function() {
      clearInterval(timer);
      gotoSlide(jQuery(this).html());
      timer = setInterval('gallery()',speed);
   });
}

function gallery() {

	//if no IMGs have the show class, grab the first image
	var current = (jQuery('ul.slideshow li.show')?  jQuery('ul.slideshow li.show') : jQuery('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')? jQuery('ul.slideshow li:first') :current.next()) : jQuery('ul.slideshow li:first'));
		
	//Get next image caption
	var title = next.find('img').attr('title');	
	var desc = next.find('img').attr('alt');	

   if( desc == "" )
      jQuery('#slideshow-caption').height("35px");
   else
      jQuery('#slideshow-caption').height("70px");



	if( title == "" )
	   jQuery('#slideshow-caption').css({opacity: 0, bottom:0});
	else
          jQuery('#slideshow-caption').css({opacity: 0.7, bottom:0});

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

   //jQuery('#slideshow-nav div.active').removeClass('active');
   var currentNav = jQuery('#slideshow-nav div.active');
   currentNav.removeClass('active');
   if( currentNav.next().length ) 
      currentNav.next().addClass('active');
   else      
      jQuery('#slideshow-nav div:eq(0)').addClass("active");
    
}

function gotoSlide(slide) {

   var current = (jQuery('ul.slideshow li.show')?  jQuery('ul.slideshow li.show') : jQuery('ul.slideshow li:first'));
   slide = slide-1;   
   var next = jQuery('ul.slideshow li:eq(' + slide + ')');
   
	//Get next image caption
	var title = next.find('img').attr('title');	
	var desc = next.find('img').attr('alt');	

   if( desc == "" )
      jQuery('#slideshow-caption').height("35px");
   else
      jQuery('#slideshow-caption').height("70px");



	if( title == "" )
	   jQuery('#slideshow-caption').css({opacity: 0, bottom:0});
	else
          jQuery('#slideshow-caption').css({opacity: 0.7, bottom:0});

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

   //jQuery('#slideshow-nav div.active').removeClass('active');
   var currentNav = jQuery('#slideshow-nav div.active');
   currentNav.removeClass('active');
   
   jQuery('#slideshow-nav div:eq(' + slide + ')').addClass('active');
   
}