/* ------------------------------------------------------------------------
	Class: prettyPhoto
	Use: Lightbox clone for jQuery
	Author: Stephane Caron (http://www.no-margin-for-errors.com)
	Version: 2.1.3
------------------------------------------------------------------------- */

prettyPhoto = {
	options : {
		'animationSpeed' : 'fast', /* fast/normal/slow */
		'padding' : 40, /* padding for each side of the picture */
		'opacity' : 0.35, /* Value betwee 0 and 1 */
		'showTitle' : true
	},
	init : function(){
		// Find all the images to overlay
		prettyPhoto.imagesArray = [];
		$("a[rel^='prettyOverlay'],a[rel^='prettyPhoto']").each(function(){
			prettyPhoto.imagesArray[prettyPhoto.imagesArray.length] = this;
			$(this).bind('click',function(){
				prettyPhoto.open(this); return false;
			});
		});
		
		$(window).scroll(function(){ prettyPhoto.centerPicture(); });
		$(window).resize(function(){ prettyPhoto.centerPicture(); prettyPhoto.resizeOverlay(); })
	},
	open : function(caller) {
		prettyPhoto.caller = caller;
		
		// Find out if the picture is part of a set
		theRel = $(caller).attr('rel');
		galleryRegExp = /\[(?:.*)\]/;
		theGallery = galleryRegExp.exec(theRel);
		
		// Calculate the number of items in the set, and the position of the clicked picture.
		prettyPhoto.setCount = 0; /* Total images in the set */
		prettyPhoto.setPosition = 0; /* Position in the set */
		prettyPhoto.arrayPosition = 0; /* Total position in the array */
		prettyPhoto.isSet = false;
		for (i = 0; i < prettyPhoto.imagesArray.length; i++){
			if($(prettyPhoto.imagesArray[i]).attr('rel').indexOf(theGallery) != -1){
				prettyPhoto.setCount++;
				if(prettyPhoto.setCount > 1) prettyPhoto.isSet = true;

				if($(prettyPhoto.imagesArray[i]).attr('href') == $(caller).attr('href')){
					prettyPhoto.setPosition = prettyPhoto.setCount;
					prettyPhoto.arrayPosition = i;
				};
			};
		};
		
		prettyPhoto.buildOverlay(prettyPhoto.isSet);

		// Display the current position
		$('div.pictureHolder span.currentText').html('<span>' + prettyPhoto.setPosition + '</span>' + '/' + prettyPhoto.setCount);

		// Position the picture in the center of the viewing area
		prettyPhoto.centerPicture();
		
		$('div.pictureHolder #fullResImageContainer').hide();
		$('.loaderIcon').show();

		// Preload the neighbour images
		prettyPhoto.preload();
	},
	next : function(){
		// Change the current position
		prettyPhoto.arrayPosition++;
		prettyPhoto.setPosition++;

		// Fade out the current picture
		$('div.pictureHolder #fullResImageContainer').fadeOut(prettyPhoto.options['animationSpeed'],function(){
			$('.loaderIcon').show();
			
			// Preload the neighbour images
			prettyPhoto.preload();
		});
		
		prettyPhoto.hideTitle();
		$('div.pictureHolder .hoverContainer').fadeOut(prettyPhoto.options['animationSpeed']);
		$('div.pictureHolder .details').fadeOut(prettyPhoto.options['animationSpeed'],function(){
			prettyPhoto.checkPosition();
		});
	},
	previous: function(){
		// Change the current position
		prettyPhoto.arrayPosition--;
		prettyPhoto.setPosition--;

		// Fade out the current picture
		$('div.pictureHolder #fullResImageContainer').fadeOut(prettyPhoto.options['animationSpeed'],function(){
			$('.loaderIcon').show();
			
			// Preload the image
			prettyPhoto.preload();
		});

		prettyPhoto.hideTitle();
		$('div.pictureHolder .hoverContainer').fadeOut(prettyPhoto.options['animationSpeed']);
		$('div.pictureHolder .details').fadeOut(prettyPhoto.options['animationSpeed'],function(){
			prettyPhoto.checkPosition();
		});
	},
	checkPosition : function(){
		// If at the end, hide the next link
		(prettyPhoto.setPosition == prettyPhoto.setCount) ? $('div.pictureHolder a.next').hide() : $('div.pictureHolder a.next').show();
		
		// If at the beginning, hide the previous link
		(prettyPhoto.setPosition == 1) ? $('div.pictureHolder a.previous').hide() : $('div.pictureHolder a.previous').show();
		
		// Change the current picture text
		$('div.pictureHolder span.currentText span').text(prettyPhoto.setPosition);
		
		if (prettyPhoto.isSet) {
			if($(prettyPhoto.imagesArray[prettyPhoto.arrayPosition]).attr('title')){
				$('div.pictureHolder .description').html(unescape($(prettyPhoto.imagesArray[prettyPhoto.arrayPosition]).attr('title')));
			}else{
				$('div.pictureHolder .description').text('');
			};
			
			if($(prettyPhoto.imagesArray[prettyPhoto.arrayPosition]).find('img').attr('alt') && prettyPhoto.options['showTitle']){
				prettyPhoto.hasTitle = true;
				$('div.prettyPhotoTitle .prettyPhotoTitleContent').html(unescape($(prettyPhoto.imagesArray[prettyPhoto.arrayPosition]).find('img').attr('alt')));
			}else{
				prettyPhoto.hasTitle = false;
			};
		}else{
			if($(prettyPhoto.imagesArray[prettyPhoto.arrayPosition]).attr('title')){
				$('div.pictureHolder .description').html(unescape($(prettyPhoto.caller).attr('title')));
			}else{
				$('div.pictureHolder .description').text('');
			};
			
			if($(prettyPhoto.imagesArray[prettyPhoto.arrayPosition]).find('img').attr('alt') && prettyPhoto.options['showTitle']){
				prettyPhoto.hasTitle = true;
				$('div.prettyPhotoTitle .prettyPhotoTitleContent').html(unescape($(prettyPhoto.caller).find('img').attr('alt')));
			}else{
				prettyPhoto.hasTitle = false;
			};
		};
	},
	centerPicture : function(){
		//Make sure the gallery is open
		if($('div.pictureHolder').size() > 0){
			
			var scrollPos = prettyPhoto.getScroll();
			
			if($.browser.opera) {
				windowHeight = window.innerHeight;
				windowWidth = window.innerWidth;
			}else{
				windowHeight = $(window).height();
				windowWidth = $(window).width();
			};
			
			$('div.pictureHolder').css({
				'top': (windowHeight/2) + scrollPos['scrollTop'] - ($('div.pictureHolder').height()/2),
				'left': (windowWidth/2) + scrollPos['scrollLeft'] - ($('div.pictureHolder').width()/2)
			});
			
			$('div.prettyPhotoTitle').css({
				'top' : $('div.pictureHolder').offset().top - 22,
				'left' : $('div.pictureHolder').offset().left + (prettyPhoto.options['padding']/2)
			});
		};
	},
	preload : function(){
		// Hide the next/previous links if on first or last images.
		prettyPhoto.checkPosition();
		
		// Set the new image
		imgPreloader = new Image();
		
		// Preload the neighbour images
		nextImage = new Image();
		if(prettyPhoto.isSet) nextImage.src = $(prettyPhoto.imagesArray[prettyPhoto.arrayPosition + 1]).attr('href');
		
		prevImage = new Image();
		if(prettyPhoto.isSet && prettyPhoto.imagesArray[prettyPhoto.arrayPosition - 1]) prevImage.src = $(prettyPhoto.imagesArray[prettyPhoto.arrayPosition - 1]).attr('href');

		$('div.pictureHolder .content').css('overflow','hidden');
		
		(prettyPhoto.isSet) ? $('div.pictureHolder #fullResImage').attr('src',$(prettyPhoto.imagesArray[prettyPhoto.arrayPosition]).attr('href')) : $('div.pictureHolder #fullResImage').attr('src',$(prettyPhoto.caller).attr('href'));

		imgPreloader.onload = function(){
			var correctSizes = prettyPhoto.resize(imgPreloader.width,imgPreloader.height);
			imgPreloader.width = correctSizes['width'];
			imgPreloader.height = correctSizes['height'];
			
			// Need that small delay for the anim to be nice
			setTimeout('prettyPhoto.showimage(imgPreloader.width,imgPreloader.height,'+correctSizes["containerWidth"]+','+correctSizes["containerHeight"]+','+correctSizes["contentWidth"]+')',500);
		};
		
		(prettyPhoto.isSet) ? imgPreloader.src = $(prettyPhoto.imagesArray[prettyPhoto.arrayPosition]).attr('href') : imgPreloader.src = $(prettyPhoto.caller).attr('href');
	},
	showimage : function(width,height,containerWidth,containerHeight,contentWidth){
		$('.loaderIcon').hide();
		
		$('div.pictureHolder .content').animate({'height':contentHeight},prettyPhoto.options['animationSpeed']);

		var scrollPos = prettyPhoto.getScroll();

		if($.browser.opera) {
			windowHeight = window.innerHeight;
			windowWidth = window.innerWidth;
		}else{
			windowHeight = $(window).height();
			windowWidth = $(window).width();
		};

		// Resize the holder
		$('div.pictureHolder').animate({
			'top': scrollPos['scrollTop'] + ((windowHeight/2) - (containerHeight/2)),
			'left': ((windowWidth/2) - (containerWidth/2)),
			'width':containerWidth
		},prettyPhoto.options['animationSpeed'],function(){
			$('#fullResImage').attr({
				'width':width,
				'height':height
			});

			// Show the nav elements
			prettyPhoto.shownav();

			$('div.pictureHolder .hoverContainer').height(height).width(width);

			// Fade the new image
			$('div.pictureHolder #fullResImageContainer').fadeIn(prettyPhoto.options['animationSpeed']);
		});	
	},
	shownav : function(){
		if(prettyPhoto.isSet) $('div.pictureHolder .hoverContainer').fadeIn(prettyPhoto.options['animationSpeed']);
		$('div.pictureHolder .details').fadeIn(prettyPhoto.options['animationSpeed']);

		prettyPhoto.showTitle();
	},
	showTitle : function(){
		if(prettyPhoto.options['showTitle'] && prettyPhoto.hasTitle){
			$('div.prettyPhotoTitle').css({
				'top' : $('div.pictureHolder').offset().top,
				'left' : $('div.pictureHolder').offset().left + (prettyPhoto.options['padding']/2),
				'display' : 'block'
			});
			
			$('div.prettyPhotoTitle div.prettyPhotoTitleContent').css('width','auto');
			
			if($('div.prettyPhotoTitle').width() > $('div.pictureHolder').width()){
				$('div.prettyPhotoTitle div.prettyPhotoTitleContent').css('width',$('div.pictureHolder').width() - (prettyPhoto.options['padding'] * 2));
			}else{
				$('div.prettyPhotoTitle div.prettyPhotoTitleContent').css('width','');
			};
			
			$('div.prettyPhotoTitle').animate({'top':($('div.pictureHolder').offset().top - 22)},prettyPhoto.options['animationSpeed']);
		};
	},
	hideTitle : function() {
		$('div.prettyPhotoTitle').animate({'top':($('div.pictureHolder').offset().top)},prettyPhoto.options['animationSpeed'],function() { $(this).css('display','none'); });
	},
	buildOverlay : function(){
		
		// Build the background overlay div
		backgroundDiv = "<div class='prettyPhotoOverlay'></div>";
		$('body').append(backgroundDiv);
		$('div.prettyPhotoOverlay').css('height',$(document).height());
		$('.prettyPhotoOverlay').bind('click',function(){
			prettyPhoto.close();
		});
		
		// Basic HTML for the picture holder
		pictureHolder = '<div class="pictureHolder"><div class="top"><div class="left"></div><div class="middle"></div><div class="right"></div></div><div class="content"><div class="loaderIcon"></div><div class="hoverContainer"><a class="next" href="#">next</a><a class="previous" href="#">previous</a></div><div id="fullResImageContainer"><img id="fullResImage" src="" /></div><div class="details clearfix"><a class="close" href="#">Close</a><p class="description"></p><p class="currentTextHolder"><span class="currentText"><span>0</span>/<span class="total">0</span></span></p></div></div><div class="bottom"><div class="left"></div><div class="middle"></div><div class="right"></div></div></div>';
		
		// Basic html for the title holder
		titleHolder = '<div class="prettyPhotoTitle"><div class="prettyPhotoTitleLeft"></div><div class="prettyPhotoTitleContent"></div><div class="prettyPhotoTitleRight"></div></div>';

		$('body').append(pictureHolder).append(titleHolder);

		$('.pictureHolder,.titleHolder').css({'opacity': 0});
		$('a.close').bind('click',function(){ prettyPhoto.close(); return false; });
		
		$('.pictureHolder .previous').bind('click',function(){
			prettyPhoto.previous();
			return false;
		});
		
		$('.pictureHolder .next').bind('click',function(){
			prettyPhoto.next();
			return false;
		});

		$('.hoverContainer').css({
			'margin-left':prettyPhoto.options['padding']/2,
			'margin-right':prettyPhoto.options['padding']/2
		});
		
		// If it's not a set, hide the links
		if(!prettyPhoto.isSet) {
			$('.hoverContainer').hide();
			$('.currentTextHolder').hide();
		};


		// To fix the bug with IE select boxes
		if($.browser.msie && $.browser.version == 6){
			$('select').css('visibility','hidden');
		};

		// Then fade it in
		$('div.prettyPhotoOverlay').css('opacity',0);
		$('div.prettyPhotoOverlay').fadeTo(prettyPhoto.options['animationSpeed'],prettyPhoto.options['opacity'], function(){
			$('div.pictureHolder').fadeTo(prettyPhoto.options['animationSpeed'],1,function(){
				// To fix an IE bug
				$('div.pictureHolder').attr('style','left:'+$('div.pictureHolder').css('left')+';top:'+$('div.pictureHolder').css('top')+';');
			});
		});
	},
	resize : function(width,height){
		$('div.pictureHolder .details').width(width); /* To have the correct height */
		$('div.pictureHolder .details p.description').width(width - parseFloat($('div.pictureHolder a.close').css('width'))); /* So it doesn't overlap the button */
		
		// Get the container size, to resize the holder to the right dimensions
		contentHeight = parseFloat($('div.pictureHolder .details').height()) + parseFloat($('div.pictureHolder .details').css('margin-top')) + parseFloat($('div.pictureHolder .details').css('margin-bottom'));
		containerHeight = contentHeight + parseFloat($('div.pictureHolder .top').height()) + parseFloat($('div.pictureHolder .bottom').height());
		containerWidth = parseFloat($('div.pictureHolder .content').css("padding-left")) + parseFloat($('div.pictureHolder .content').css("padding-right")) + prettyPhoto.options['padding'];
		
		var newWidth = width;
		var newHeight = height;
		
		// If there's a title, take it into consideration unpon resizing
		if(prettyPhoto.options['showTitle']) containerHeight -= 22;

		if($.browser.opera) {
			windowHeight = window.innerHeight;
			windowWidth = window.innerWidth;
		}else{
			windowHeight = $(window).height();
			windowWidth = $(window).width();
		};
		
		if((containerWidth + width) > windowWidth || (containerHeight + height) > windowHeight) {
			// Get the original geometry and calculate scales
			var xscale=(width+containerWidth + 100)/windowWidth;
			var yscale=(height+containerHeight + 100)/windowHeight;
		
			// Recalculate new size with default ratio
			if (yscale>xscale){
				newWidth = Math.round(width * (1/yscale));
				newHeight = Math.round(height * (1/yscale));
			} else {
				newWidth = Math.round(width * (1/xscale));
				newHeight = Math.round(height * (1/xscale));
			};
		};

		// Get the container size, to resize the holder to the right dimensions
		containerHeight += newHeight;
		contentHeight += newHeight;
		containerWidth += newWidth;
	
		$('div.pictureHolder .details').width(newWidth); /* To have the correct height */
		$('div.pictureHolder .details p.description').width(newWidth - parseFloat($('div.pictureHolder a.close').css('width'))); /* So it doesn't overlap the button */

		return {
			width:newWidth,
			height:newHeight,
			containerHeight:containerHeight,
			containerWidth:containerWidth,
			contentHeight:contentHeight
		};
	},
	resizeOverlay : function() {
		$('div.prettyPhotoOverlay').css({
			'height':$(document).height(),
			'width':$(window).width()
		});
	},
	getScroll : function(){
		scrollTop = window.pageYOffset || document.documentElement.scrollTop || 0;
		scrollLeft = window.pageXOffset || document.documentElement.scrollLeft || 0;
		return {scrollTop:scrollTop,scrollLeft:scrollLeft};
	},
	close : function(){
		$('div.pictureHolder,div.prettyPhotoTitle').fadeTo(prettyPhoto.options['animationSpeed'],0, function(){
			$('div.prettyPhotoOverlay').fadeTo(prettyPhoto.options['animationSpeed'],0, function(){
				$('div.prettyPhotoOverlay').remove();
				$('div.pictureHolder').remove();
				
				// To fix the bug with IE select boxes
				if($.browser.msie && $.browser.version == 6){
					$('select').css('visibility','visible');
				};
			});
		});
	}
}