/* ------------------------------------------------------------------------

	Class: prettyPhoto

	Use: Lightbox clone for jQuery

	Author: Stephane Caron (http://www.no-margin-for-errors.com)

	Version: 2.5.4

------------------------------------------------------------------------- */



(function($) {

	$.prettyPhoto = {version: '2.5.4'};

	

	$.fn.prettyPhoto = function(settings) {

		settings = jQuery.extend({

			animationSpeed: 'normal', /* fast/slow/normal */

			padding: 40, /* padding for each side of the picture */

			opacity: 0.80, /* Value between 0 and 1 */

			showTitle: true, /* true/false */

			allowresize: true, /* true/false */

			counter_separator_label: '/', /* The separator for the gallery counter 1 "of" 2 */

			theme: 'dark_rounded', /* light_rounded / dark_rounded / light_square / dark_square */

			hideflash: false, /* Hides all the flash object on a page, set to TRUE if flash appears over prettyPhoto */

			modal: false, /* If set to true, only the close button will close the window */

			changepicturecallback: function(){}, /* Called everytime an item is shown/changed */

			callback: function(){} /* Called when prettyPhoto is closed */

		}, settings);

		

		// Fallback to a supported theme for IE6

		if($.browser.msie && $.browser.version == 6){

			settings.theme = "light_square";

		}

		

		if($('.pp_overlay').size() == 0) {

			_buildOverlay(); // If the overlay is not there, inject it!

		}else{

			// Set my global selectors

			$pp_pic_holder = $('.pp_pic_holder');

			$ppt = $('.ppt');

		}

		

		// Global variables accessible only by prettyPhoto

		var doresize = true, percentBased = false, correctSizes,

		

		// Cached selectors

		$pp_pic_holder, $ppt,

		

		// prettyPhoto container specific

		pp_contentHeight, pp_contentWidth, pp_containerHeight, pp_containerWidth, pp_type = 'image',

	

		//Gallery specific

		setPosition = 0,



		// Global elements

		$scrollPos = _getScroll();

	

		// Window/Keyboard events

		$(window).scroll(function(){ $scrollPos = _getScroll(); _centerOverlay(); _resizeOverlay(); });

		$(window).resize(function(){ _centerOverlay(); _resizeOverlay(); });

		$(document).keydown(function(e){

			if($pp_pic_holder.is(':visible'))

			switch(e.keyCode){

				case 37:

					$.prettyPhoto.changePage('previous');

					break;

				case 39:

					$.prettyPhoto.changePage('next');

					break;

				case 27:

					if(!settings.modal)

					$.prettyPhoto.close();

					break;

			};

	    });

	

		// Bind the code to each links

		$(this).each(function(){

			$(this).bind('click',function(){

				

				link = this; // Fix scoping

				

				// Find out if the picture is part of a set

				theRel = $(this).attr('rel');

				galleryRegExp = /\[(?:.*)\]/;

				theGallery = galleryRegExp.exec(theRel);

				

				// Build the gallery array

				var images = new Array(), titles = new Array(), descriptions = new Array();

				if(theGallery){

					$('a[rel*='+theGallery+']').each(function(i){

						if($(this)[0] === $(link)[0]) setPosition = i; // Get the position in the set

						images.push($(this).attr('href'));

						titles.push($(this).find('img').attr('alt'));

						descriptions.push($(this).attr('title'));

					});

				}else{

					images = $(this).attr('href');

					titles = ($(this).find('img').attr('alt')) ?  $(this).find('img').attr('alt') : '';

					descriptions = ($(this).attr('title')) ?  $(this).attr('title') : '';

				}



				$.prettyPhoto.open(images,titles,descriptions);

				return false;

			});

		});

	

		

		/**

		* Opens the prettyPhoto modal box.

		* @param image {String,Array} Full path to the image to be open, can also be an array containing full images paths.

		* @param title {String,Array} The title to be displayed with the picture, can also be an array containing all the titles.

		* @param description {String,Array} The description to be displayed with the picture, can also be an array containing all the descriptions.

		*/

		$.prettyPhoto.open = function(gallery_images,gallery_titles,gallery_descriptions) {

			// To fix the bug with IE select boxes

			if($.browser.msie && $.browser.version == 6){

				$('select').css('visibility','hidden');

			};

			

			// Hide the flash

			if(settings.hideflash) $('object,embed').css('visibility','hidden');

			

			// Convert everything to an array in the case it's a single item

			images = $.makeArray(gallery_images);

			titles = $.makeArray(gallery_titles);

			descriptions = $.makeArray(gallery_descriptions);

			

			if($('.pp_overlay').size() == 0) {

				_buildOverlay(); // If the overlay is not there, inject it!

			}else{

				// Set my global selectors

				$pp_pic_holder = $('.pp_pic_holder');

				$ppt = $('.ppt');

			}

			

			$pp_pic_holder.attr('class','pp_pic_holder ' + settings.theme); // Set the proper theme



			isSet = ($(images).size() > 0) ?  true : false; // Find out if it's a set



			_getFileType(images[setPosition]); // Set the proper file type



			_centerOverlay(); // Center it



			// Hide the next/previous links if on first or last images.

			_checkPosition($(images).size());

		

			$('.pp_loaderIcon').show(); // Do I need to explain?

		

			// Fade the content in

			$('div.pp_overlay').show().fadeTo(settings.animationSpeed,settings.opacity, function(){

				$pp_pic_holder.fadeIn(settings.animationSpeed,function(){

					// Display the current position

					$pp_pic_holder.find('p.currentTextHolder').text((setPosition+1) + settings.counter_separator_label + $(images).size());



					// Set the description

					if(descriptions[setPosition]){

						$pp_pic_holder.find('.pp_description').show().html(unescape(descriptions[setPosition]));

					}else{

						$pp_pic_holder.find('.pp_description').hide().text('');

					};



					// Set the title

					if(titles[setPosition] && settings.showTitle){

						hasTitle = true;

						$ppt.html(unescape(titles[setPosition]));

					}else{

						hasTitle = false;

					};

					

					// Inject the proper content

					if(pp_type == 'image'){

						// Set the new image

						imgPreloader = new Image();



						// Preload the neighbour images

						nextImage = new Image();

						if(isSet && setPosition > $(images).size()) nextImage.src = images[setPosition + 1];

						prevImage = new Image();

						if(isSet && images[setPosition - 1]) prevImage.src = images[setPosition - 1];



						pp_typeMarkup = '<img id="fullResImage" src="" />';				

						$pp_pic_holder.find('#pp_full_res')[0].innerHTML = pp_typeMarkup;



						$pp_pic_holder.find('.pp_content').css('overflow','hidden');

						$pp_pic_holder.find('#fullResImage').attr('src',images[setPosition]);



						imgPreloader.onload = function(){

							// Fit item to viewport

							correctSizes = _fitToViewport(imgPreloader.width,imgPreloader.height);

							

							_showContent();

						};



						imgPreloader.src = images[setPosition];

					}else{

						// Get the dimensions

						movie_width = ( parseFloat(grab_param('width',images[setPosition])) ) ? grab_param('width',images[setPosition]) : "425";

						movie_height = ( parseFloat(grab_param('height',images[setPosition])) ) ? grab_param('height',images[setPosition]) : "344";



						// If the size is % based, calculate according to window dimensions

						if(movie_width.indexOf('%') != -1 || movie_height.indexOf('%') != -1){

							movie_height = ($(window).height() * parseFloat(movie_height) / 100) - 100;

							movie_width = ($(window).width() * parseFloat(movie_width) / 100) - 100;

							percentBased = true;

						}



						movie_height = parseFloat(movie_height);

						movie_width = parseFloat(movie_width);



						if(pp_type == 'quicktime') movie_height+=15; // Add space for the control bar



						// Fit item to viewport

						correctSizes = _fitToViewport(movie_width,movie_height);



						if(pp_type == 'youtube'){

							pp_typeMarkup = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="'+correctSizes['width']+'" height="'+correctSizes['height']+'"><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="movie" value="http://www.youtube.com/v/'+grab_param('v',images[setPosition])+'" /><embed src="http://www.youtube.com/v/'+grab_param('v',images[setPosition])+'" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="'+correctSizes['width']+'" height="'+correctSizes['height']+'"></embed></object>';

						}else if(pp_type == 'quicktime'){

							pp_typeMarkup = '<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" codebase="http://www.apple.com/qtactivex/qtplugin.cab" height="'+correctSizes['height']+'" width="'+correctSizes['width']+'"><param name="src" value="'+images[setPosition]+'"><param name="autoplay" value="true"><param name="type" value="video/quicktime"><embed src="'+images[setPosition]+'" height="'+correctSizes['height']+'" width="'+correctSizes['width']+'" autoplay="true" type="video/quicktime" pluginspage="http://www.apple.com/quicktime/download/"></embed></object>';

						}else if(pp_type == 'flash'){

							flash_vars = images[setPosition];

							flash_vars = flash_vars.substring(images[setPosition].indexOf('flashvars') + 10,images[setPosition].length);



							filename = images[setPosition];

							filename = filename.substring(0,filename.indexOf('?'));



							pp_typeMarkup = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="'+correctSizes['width']+'" height="'+correctSizes['height']+'"><param name="allowfullscreen" value="true" /><param name="allowscriptaccess" value="always" /><param name="movie" value="'+filename+'?'+flash_vars+'" /><embed src="'+filename+'?'+flash_vars+'" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="'+correctSizes['width']+'" height="'+correctSizes['height']+'"></embed></object>';

						}else if(pp_type == 'iframe'){

							movie_url = images[setPosition];

							movie_url = movie_url.substr(0,movie_url.indexOf('iframe')-1);



							pp_typeMarkup = '<iframe src ="'+movie_url+'" width="'+(correctSizes['width']-10)+'" height="'+(correctSizes['height']-10)+'" frameborder="no"></iframe>';

						}



						// Show content

						_showContent();

					}

				});

			});

		};

		

		/**

		* Change page in the prettyPhoto modal box

		* @param direction {String} Direction of the paging, previous or next.

		*/

		$.prettyPhoto.changePage = function(direction){

			if(direction == 'previous') {

				setPosition--;

				if (setPosition < 0){

					setPosition = 0;

					return;

				}

			}else{

				if($('.pp_arrow_next').is('.disabled')) return;

				setPosition++;

			};



			// Allow the resizing of the images

			if(!doresize) doresize = true;



			_hideContent();

			$('a.pp_expand,a.pp_contract').fadeOut(settings.animationSpeed,function(){

				$(this).removeClass('pp_contract').addClass('pp_expand');

				$.prettyPhoto.open(images,titles,descriptions);

			});

		};

		

		/**

		* Closes the prettyPhoto modal box.

		*/

		$.prettyPhoto.close = function(){

			$pp_pic_holder.find('object,embed').css('visibility','hidden');

			

			$('div.pp_pic_holder,div.ppt').fadeOut(settings.animationSpeed);

			

			$('div.pp_overlay').fadeOut(settings.animationSpeed, function(){

				$('div.pp_overlay,div.pp_pic_holder,div.ppt').remove();

			

				// To fix the bug with IE select boxes

				if($.browser.msie && $.browser.version == 6){

					$('select').css('visibility','visible');

				};

				

				// Show the flash

				if(settings.hideflash) $('object,embed').css('visibility','visible');

				

				setPosition = 0;

				

				settings.callback();

			});

			

			doresize = true;

		};

	

		/**

		* Set the proper sizes on the containers and animate the content in.

		*/

		_showContent = function(){

			$('.pp_loaderIcon').hide();



			if($.browser.opera) {

				windowHeight = window.innerHeight;

				windowWidth = window.innerWidth;

			}else{

				windowHeight = $(window).height();

				windowWidth = $(window).width();

			};



			// Calculate the opened top position of the pic holder

			projectedTop = $scrollPos['scrollTop'] + ((windowHeight/2) - (correctSizes['containerHeight']/2));

			if(projectedTop < 0) projectedTop = 0 + $pp_pic_holder.find('.ppt').height();



			// Resize the content holder

			$pp_pic_holder.find('.pp_content').animate({'height':correctSizes['contentHeight']},settings.animationSpeed);

			

			// Resize picture the holder

			$pp_pic_holder.animate({

				'top': projectedTop,

				'left': ((windowWidth/2) - (correctSizes['containerWidth']/2)),

				'width': correctSizes['containerWidth']

			},settings.animationSpeed,function(){

				$pp_pic_holder.width(correctSizes['containerWidth']);

				$pp_pic_holder.find('.pp_hoverContainer,#fullResImage').height(correctSizes['height']).width(correctSizes['width']);



				// Fade the new image

				$pp_pic_holder.find('#pp_full_res').fadeIn(settings.animationSpeed);



				// Show the nav

				if(isSet && pp_type=="image") { $pp_pic_holder.find('.pp_hoverContainer').fadeIn(settings.animationSpeed); }else{ $pp_pic_holder.find('.pp_hoverContainer').hide(); }

				$pp_pic_holder.find('.pp_details').fadeIn(settings.animationSpeed);



				// Show the title

				if(settings.showTitle && hasTitle){

					$ppt.css({

						'top' : $pp_pic_holder.offset().top - 20,

						'left' : $pp_pic_holder.offset().left + (settings.padding/2),

						'display' : 'none'

					});



					$ppt.fadeIn(settings.animationSpeed);

				};

			

				// Fade the resizing link if the image is resized

				if(correctSizes['resized']) $('a.pp_expand,a.pp_contract').fadeIn(settings.animationSpeed);

				

				// Once everything is done, inject the content if it's now a photo

				if(pp_type != 'image') $pp_pic_holder.find('#pp_full_res')[0].innerHTML = pp_typeMarkup;

				

				// Callback!

				settings.changepicturecallback();

			});

		};

		

		/**

		* Hide the content...DUH!

		*/

		function _hideContent(){

			// Fade out the current picture

			$pp_pic_holder.find('#pp_full_res object,#pp_full_res embed').css('visibility','hidden');

			$pp_pic_holder.find('.pp_hoverContainer,.pp_details').fadeOut(settings.animationSpeed);

			$pp_pic_holder.find('#pp_full_res').fadeOut(settings.animationSpeed,function(){

				$('.pp_loaderIcon').show();

			});

			

			// Hide the title

			$ppt.fadeOut(settings.animationSpeed);

		}

	

		/**

		* Check the item position in the gallery array, hide or show the navigation links

		* @param setCount {integer} The total number of items in the set

		*/

		function _checkPosition(setCount){

			// If at the end, hide the next link

			if(setPosition == setCount-1) {

				$pp_pic_holder.find('a.pp_next').css('visibility','hidden');

				$pp_pic_holder.find('a.pp_arrow_next').addClass('disabled').unbind('click');

			}else{ 

				$pp_pic_holder.find('a.pp_next').css('visibility','visible');

				$pp_pic_holder.find('a.pp_arrow_next.disabled').removeClass('disabled').bind('click',function(){

					$.prettyPhoto.changePage('next');

					return false;

				});

			};

		

			// If at the beginning, hide the previous link

			if(setPosition == 0) {

				$pp_pic_holder.find('a.pp_previous').css('visibility','hidden');

				$pp_pic_holder.find('a.pp_arrow_previous').addClass('disabled').unbind('click');

			}else{

				$pp_pic_holder.find('a.pp_previous').css('visibility','visible');

				$pp_pic_holder.find('a.pp_arrow_previous.disabled').removeClass('disabled').bind('click',function(){

					$.prettyPhoto.changePage('previous');

					return false;

				});

			};

			

			// Hide the bottom nav if it's not a set.

			if(setCount > 1) {

				$('.pp_nav').show();

			}else{

				$('.pp_nav').hide();

			}

		};

	

		/**

		* Resize the item dimensions if it's bigger than the viewport

		* @param width {integer} Width of the item to be opened

		* @param height {integer} Height of the item to be opened

		* @return An array containin the "fitted" dimensions

		*/

		function _fitToViewport(width,height){

			hasBeenResized = false;

		

			_getDimensions(width,height);

			

			// Define them in case there's no resize needed

			imageWidth = width;

			imageHeight = height;



			windowHeight = $(window).height();

			windowWidth = $(window).width();

		

			if( ((pp_containerWidth > windowWidth) || (pp_containerHeight > windowHeight)) && doresize && settings.allowresize && !percentBased) {

				hasBeenResized = true;

				notFitting = true;

			

				while (notFitting){

					if((pp_containerWidth > windowWidth)){

						imageWidth = (windowWidth - 200);

						imageHeight = (height/width) * imageWidth;

					}else if((pp_containerHeight > windowHeight)){

						imageHeight = (windowHeight - 200);

						imageWidth = (width/height) * imageHeight;

					}else{

						notFitting = false;

					};



					pp_containerHeight = imageHeight;

					pp_containerWidth = imageWidth;

				};

			

				_getDimensions(imageWidth,imageHeight);

			};



			return {

				width:imageWidth,

				height:imageHeight,

				containerHeight:pp_containerHeight,

				containerWidth:pp_containerWidth,

				contentHeight:pp_contentHeight,

				contentWidth:pp_contentWidth,

				resized:hasBeenResized

			};

		};

		

		/**

		* Get the containers dimensions according to the item size

		* @param width {integer} Width of the item to be opened

		* @param height {integer} Height of the item to be opened

		*/

		function _getDimensions(width,height){

			$pp_pic_holder.find('.pp_details').width(width).find('.pp_description').width(width - parseFloat($pp_pic_holder.find('a.pp_close').css('width'))); /* To have the correct height */

			

			// Get the container size, to resize the holder to the right dimensions

			pp_contentHeight = height + $pp_pic_holder.find('.pp_details').height() + parseFloat($pp_pic_holder.find('.pp_details').css('marginTop')) + parseFloat($pp_pic_holder.find('.pp_details').css('marginBottom'));

			pp_contentWidth = width;

			pp_containerHeight = pp_contentHeight + $pp_pic_holder.find('.ppt').height() + $pp_pic_holder.find('.pp_top').height() + $pp_pic_holder.find('.pp_bottom').height();

			pp_containerWidth = width + settings.padding;

		}

	

		function _getFileType(itemSrc){

			if (itemSrc.match(/youtube\.com\/watch/i)) {

				pp_type = 'youtube';

			}else if(itemSrc.indexOf('.mov') != -1){ 

				pp_type = 'quicktime';

			}else if(itemSrc.indexOf('.swf') != -1){

				pp_type = 'flash';

			}else if(itemSrc.indexOf('iframe') != -1){

				pp_type = 'iframe'

			}else{

				pp_type = 'image';

			};

		};

	

		function _centerOverlay(){

			if($.browser.opera) {

				windowHeight = window.innerHeight;

				windowWidth = window.innerWidth;

			}else{

				windowHeight = $(window).height();

				windowWidth = $(window).width();

			};



			if(doresize) {

				$pHeight = $pp_pic_holder.height();

				$pWidth = $pp_pic_holder.width();

				$tHeight = $ppt.height();

				

				projectedTop = (windowHeight/2) + $scrollPos['scrollTop'] - ($pHeight/2);

				if(projectedTop < 0) projectedTop = 0 + $tHeight;

				

				$pp_pic_holder.css({

					'top': projectedTop,

					'left': (windowWidth/2) + $scrollPos['scrollLeft'] - ($pWidth/2)

				});

		

				$ppt.css({

					'top' : projectedTop - $tHeight,

					'left' : (windowWidth/2) + $scrollPos['scrollLeft'] - ($pWidth/2) + (settings.padding/2)

				});

			};

		};

	

		function _getScroll(){

			if (self.pageYOffset) {

				scrollTop = self.pageYOffset;

				scrollLeft = self.pageXOffset;

			} else if (document.documentElement && document.documentElement.scrollTop) { // Explorer 6 Strict

				scrollTop = document.documentElement.scrollTop;

				scrollLeft = document.documentElement.scrollLeft;

			} else if (document.body) {// all other Explorers

				scrollTop = document.body.scrollTop;

				scrollLeft = document.body.scrollLeft;	

			}

			

			return {scrollTop:scrollTop,scrollLeft:scrollLeft};

		};

	

		function _resizeOverlay() {

			$('div.pp_overlay').css({

				'height':$(document).height(),

				'width':$(window).width()

			});

		};

	

		function _buildOverlay(){

			toInject = "";

			

			// Build the background overlay div

			toInject += "<div class='pp_overlay'></div>";

			

			// Basic HTML for the picture holder

			toInject += '<div class="pp_pic_holder"><div class="pp_top"><div class="pp_left"></div><div class="pp_middle"></div><div class="pp_right"></div></div><div class="pp_content"><a href="#" class="pp_expand" title="Expand the image">Expand</a><div class="pp_loaderIcon"></div><div class="pp_hoverContainer"><a class="pp_next" href="#">next</a><a class="pp_previous" href="#">previous</a></div><div id="pp_full_res"></div><div class="pp_details clearfix"><a class="pp_close" href="#">Close</a><p class="pp_description"></p><div class="pp_nav"><a href="#" class="pp_arrow_previous">Previous</a><p class="currentTextHolder">0'+settings.counter_separator_label+'0</p><a href="#" class="pp_arrow_next">Next</a></div></div></div><div class="pp_bottom"><div class="pp_left"></div><div class="pp_middle"></div><div class="pp_right"></div></div></div>';

			

			// Basic html for the title holder

			toInject += '<div class="ppt"></div>';

			

			$('body').append(toInject);

			

			// So it fades nicely

			$('div.pp_overlay').css('opacity',0);

			

			// Set my global selectors

			$pp_pic_holder = $('.pp_pic_holder');

			$ppt = $('.ppt');

			

			$('div.pp_overlay').css('height',$(document).height()).hide().bind('click',function(){

				if(!settings.modal)

				$.prettyPhoto.close();

			});



			$('a.pp_close').bind('click',function(){ $.prettyPhoto.close(); return false; });



			$('a.pp_expand').bind('click',function(){

				$this = $(this); // Fix scoping

				

				// Expand the image

				if($this.hasClass('pp_expand')){

					$this.removeClass('pp_expand').addClass('pp_contract');

					doresize = false;

				}else{

					$this.removeClass('pp_contract').addClass('pp_expand');

					doresize = true;

				};

			

				_hideContent();

				

				$pp_pic_holder.find('.pp_hoverContainer, .pp_details').fadeOut(settings.animationSpeed);

				$pp_pic_holder.find('#pp_full_res').fadeOut(settings.animationSpeed,function(){

					$.prettyPhoto.open(images,titles,descriptions);

				});

		

				return false;

			});

		

			$pp_pic_holder.find('.pp_previous, .pp_arrow_previous').bind('click',function(){

				$.prettyPhoto.changePage('previous');

				return false;

			});

		

			$pp_pic_holder.find('.pp_next, .pp_arrow_next').bind('click',function(){

				$.prettyPhoto.changePage('next');

				return false;

			});



			$pp_pic_holder.find('.pp_hoverContainer').css({

				'margin-left': settings.padding/2

			});

		};

	};

	

	function grab_param(name,url){

	  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");

	  var regexS = "[\\?&]"+name+"=([^&#]*)";

	  var regex = new RegExp( regexS );

	  var results = regex.exec( url );

	  if( results == null )

	    return "";

	  else

	    return results[1];

	}

})(jQuery);
