var PageTransition = "";

function slideShow() {

	//Set the opacity of all images to 0
	$('#gallery a').css({opacity: 0.0});

	//Get the first image and display it (set it to full opacity)
	$('#gallery a:first').css({opacity: 1.0});

	/*
		//Set the caption background to semi-transparent
		$('#gallery .caption').css({opacity: 1.0});
   
		//Resize the width of the caption according to the image width
		$('#gallery .caption').css({width: $('#gallery a').find('img').css('width')});
		
		//Get the caption of the first image from REL attribute and display it
		$('#gallery .content').html($('#gallery a:first').find('img').attr('rel'))
		.animate({opacity: 1.0}, 400);
	*/
	
	navigation_transition();

	//Call the gallery function to run the slideshow, 6000 = change to next image after 6 seconds
	PageTransition = setInterval('gallery()',6000);

}

function navigation_transition()
{
	$('.slideshow_controls').each(function()
	{
		$(this).attr('src','images/slideshow_off.png');
	});
	$('#image_' + $('#gallery a.show').attr('id')).attr('src','images/slideshow_on.png');
}

function gallery() {

	//if no IMGs have the show class, grab the first image
	var current = ($('#gallery a.show')?  $('#gallery a.show') : $('#gallery a: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().hasClass('caption'))? $('#gallery a:first') :current.next()) : $('#gallery a:first'));	

	if(next.attr('id') == "")
	{
		next = $('#link0');
	}

	//Get next image caption
	var caption = next.find('img').attr('rel');	

	//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 current image
	current.animate({opacity: 0.0}, 1000)
	.removeClass('show');

	navigation_transition();

	/*
		//Set the opacity to 0 and height to 1px
		$('#gallery .caption').animate({opacity: 0.0}, { queue:false, duration:0 }).animate({height: '0px', padding: '0px'}, { queue:true, duration:300 });
		$('#gallery .content').hide('');
   
		//Animate the caption, opacity to 0.7 and heigth to 100px, a slide up effect
		$('#gallery .content').html(caption);
		$('#gallery .caption').animate({opacity: 1.0},1000).animate({height: (($('#gallery .content').height() * 1) + 10) + 'px', padding: '26px'},1000, function()
		{
			//Display the content
			$('#gallery .content').fadeIn('');
		});
	*/
}

function showImage(ImageNumber) {

	clearInterval(PageTransition);

	var current = $('.show');
	var next = $('#' + ImageNumber);

	//Get next image caption
	var caption = next.find('img').attr('rel');	

	//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 current image
	current.animate({opacity: 0.0}, 1000)
	.removeClass('show');

	/*
		//Set the opacity to 0 and height to 1px
		$('#gallery .caption').stop(true, true).animate({opacity: 0.0}, { queue:false, duration:0 }).stop(true, true).animate({height: '1px', padding: '0px'}, { queue:true, duration:300 });
		$('#gallery .content').hide('');
   
		//Animate the caption, opacity to 0.7 and heigth to 100px, a slide up effect
		$('#gallery .content').stop(true, true).html(caption);
		$('#gallery .caption').stop(true, true).animate({opacity: 1.0},1000).stop(true, true).animate({height: (($('#gallery .content').height() * 1) + 10) + 'px', padding: '26px'},1000, function()
		{
			//Display the content
			$('#gallery .content').fadeIn('');
		});
	*/

	navigation_transition();

	PageTransition = setInterval('gallery()',6000);

}