/* ------------------------------------------------------------------------
	Class: prettyPhoto
	Use: Lightbox clone for jQuery
	Author: Stephane Caron (http://www.no-margin-for-errors.com)
	Version: 2.4.3
------------------------------------------------------------------------- */

var $pp_pic_holder;
var $ppt;

(function($)
{
	$.fn.prettyPhoto = function(settings)
	{
		// global Variables
		var doresize = true;
		var percentBased = false;
		var imagesArray = [];
		var setPosition = 0; /* Position in the set */
		var pp_contentHeight;
		var pp_contentWidth;
		var pp_containerHeight;
		var pp_containerWidth;
		var pp_type = 'image';
		var start_scroll_pos;

		// Global elements
		var $caller;
		var $scrollPos = _getScroll();

		$(window).scroll(function() { $scrollPos = _getScroll(); /*_centerPicture();*/ });
		$(window).resize(function() { _centerPicture(); _resizeOverlay(); });
		$(document).keypress(function(e)
		{
			switch (e.keyCode)
			{
				case 37:
					if (setPosition == 1) return;
					changePicture('previous');
					break;
				case 39:
					if (setPosition == setCount) return;
					changePicture('next');
					break;
				case 27:
					close();
					break;
			};
		});


		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: false, /* true/false */
			counter_separator_label: '/', /* The separator for the gallery counter 1 "of" 2 */
			theme: 'light_rounded', /* light_rounded / dark_rounded / light_square / dark_square */
			callback: function() { }
		}, settings);

		// Fallback to a supported theme for IE6
		if ($.browser.msie && $.browser.version == 6)
		{
			settings.theme = "light_square";
		}

		$(this).each(function()
		{
			var hasTitle = false;
			var isSet = false;
			var setCount = 0; /* Total images in the set */
			var arrayPosition = 0; /* Total position in the array */

			imagesArray[imagesArray.length] = this;
			$(this).bind('click', function()
			{
				open(this);
				return false;
			});
		});

		function open(el)
		{
			$caller = $(el);

			start_scroll_pos = $scrollPos['scrollTop'];

			// 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.
			isSet = false;
			setCount = 0;

			_getFileType();

			for (i = 0; i < imagesArray.length; i++)
			{
				if ($(imagesArray[i]).attr('rel').indexOf(theGallery) != -1)
				{
					setCount++;
					if (setCount > 1) isSet = true;

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

			_buildOverlay();

			// Display the current position
			$pp_pic_holder.find('p.currentTextHolder').text(setPosition + settings.counter_separator_label + setCount);

			// Position the picture in the center of the viewing area
			_centerPicture();

			$('#pp_full_res').hide();
			$pp_pic_holder.find('.pp_loaderIcon').show();

			//doresize = false;
		};

		showimage = function(width, height, containerWidth, containerHeight, contentHeight, contentWidth, resized)
		{
			$('.pp_loaderIcon').hide();

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

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

			projectedTop = $scrollPos['scrollTop'] + ((windowHeight / 2) - (containerHeight / 2));
			if (projectedTop < 0) projectedTop = 0 + $pp_pic_holder.find('.ppt').height();

			// Resize the holder
			$pp_pic_holder.animate({
				'top': start_scroll_pos + 50,
				'left': ((windowWidth / 2) - (containerWidth / 2)),
				'width': containerWidth
			}, settings.animationSpeed, function()
			{
				$pp_pic_holder.width(containerWidth);
				$pp_pic_holder.find('.pp_hoverContainer,#fullResImage').height(height).width(width);

				// Fade the new image
				$pp_pic_holder.find('#pp_full_res').fadeIn(settings.animationSpeed, function()
				{
					$(this).find('object,embed').css('visibility', 'visible');
				});

				// Show the nav elements
				_showContent();

				// Fade the resizing link if the image is resized
				if (resized) $('a.pp_expand,a.pp_contract').fadeIn(settings.animationSpeed);
			});
		};

		function _showContent()
		{
			// 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 - 22,
					'left': $pp_pic_holder.offset().left + (settings.padding / 2),
					'display': 'none'
				});

				$ppt.fadeIn(settings.animationSpeed);
			};
		}

		function _hideContent()
		{
			// Fade out the current picture
			$pp_pic_holder.find('.pp_hoverContainer,.pp_details').fadeOut(settings.animationSpeed);
			$pp_pic_holder.find('#pp_full_res object,#pp_full_res embed').css('visibility', 'hidden');
			$pp_pic_holder.find('#pp_full_res').fadeOut(settings.animationSpeed, function()
			{
				$('.pp_loaderIcon').show();

				// Preload the image
				_preload();
			});

			// Hide the title
			$ppt.fadeOut(settings.animationSpeed);
		}

		function changePicture(direction)
		{
			if (direction == 'previous')
			{
				arrayPosition--;
				setPosition--;
			} else
			{
				arrayPosition++;
				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');
			});

			// Scroll to position where first picture has been opened
			window.scrollTo(0, start_scroll_pos);
		};

		function close()
		{
			$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');
				};

				settings.callback();
			});

			doresize = true;
		};

		function _checkPosition()
		{
			// If at the end, hide the next link
			if (setPosition == setCount)
			{
				$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()
				{
					changePicture('next');
					return false;
				});
			};

			// If at the beginning, hide the previous link
			if (setPosition == 1)
			{
				$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()
				{
					changePicture('previous');
					return false;
				});
			};

			// Change the current picture text
			$pp_pic_holder.find('p.currentTextHolder').text(setPosition + settings.counter_separator_label + setCount);

			$caller = (isSet) ? $(imagesArray[arrayPosition]) : $caller;
			_getFileType();

			if ($caller.attr('title'))
			{
				$pp_pic_holder.find('.pp_description').show().html(unescape($caller.attr('title')));
			} else
			{
				$pp_pic_holder.find('.pp_description').hide().text('');
			};

			if ($caller.find('img').attr('alt') && settings.showTitle)
			{
				hasTitle = true;
				$ppt.html(unescape($caller.find('img').attr('alt')));
			} else
			{
				hasTitle = false;
			};
		};

		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
			};
		};

		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()
		{
			if ($caller.attr('href').match(/youtube\.com\/watch/i))
			{
				pp_type = 'youtube';
			} else if ($caller.attr('href').indexOf('.mov') != -1)
			{
				pp_type = 'quicktime';
			} else if ($caller.attr('href').indexOf('.swf') != -1)
			{
				pp_type = 'flash';
			} else if ($caller.attr('href').indexOf('iframe') != -1)
			{
				pp_type = 'iframe'
			} else
			{
				pp_type = 'image';
			}
		}

		function _centerPicture()
		{
			if ($pp_pic_holder) { if ($pp_pic_holder.size() == 0) { return; } } else { return; }; //Make sure the gallery is open

			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 _preload()
		{
			// Hide the next/previous links if on first or last images.
			_checkPosition();

			if (pp_type == 'image')
			{
				// Set the new image
				imgPreloader = new Image();

				// Preload the neighbour images
				nextImage = new Image();
				if (isSet && setPosition > setCount) nextImage.src = $(imagesArray[arrayPosition + 1]).attr('href');
				prevImage = new Image();
				if (isSet && imagesArray[arrayPosition - 1]) prevImage.src = $(imagesArray[arrayPosition - 1]).attr('href');

				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', $caller.attr('href'));

				imgPreloader.onload = function()
				{
					var correctSizes = _fitToViewport(imgPreloader.width, imgPreloader.height);
					imgPreloader.width = correctSizes['width'];
					imgPreloader.height = correctSizes['height'];
					showimage(imgPreloader.width, imgPreloader.height, correctSizes["containerWidth"], correctSizes["containerHeight"], correctSizes["contentHeight"], correctSizes["contentWidth"], correctSizes["resized"]);
				};

				imgPreloader.src = $caller.attr('href');
			} else
			{
				// Get the dimensions
				movie_width = (parseFloat(grab_param('width', $caller.attr('href')))) ? grab_param('width', $caller.attr('href')) : "425";
				movie_height = (parseFloat(grab_param('height', $caller.attr('href')))) ? grab_param('height', $caller.attr('href')) : "344";

				// If the size is % based
				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;
					parsentBased = true;
				} else
				{
					movie_height = parseFloat(movie_height);
					movie_width = parseFloat(movie_width);
				}

				if (pp_type == 'quicktime') { movie_height += 13; }

				// Fit them 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', $caller.attr('href')) + '" /><embed src="http://www.youtube.com/v/' + grab_param('v', $caller.attr('href')) + '" 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="' + $caller.attr('href') + '"><param name="autoplay" value="true"><param name="type" value="video/quicktime"><embed src="' + $caller.attr('href') + '" 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 = $caller.attr('href');
					flash_vars = flash_vars.substring($caller.attr('href').indexOf('flashvars') + 10, $caller.attr('href').length);

					filename = $caller.attr('href');
					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 = $caller.attr('href');
					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>';
				}
				// Append HTML
				$pp_pic_holder.find('#pp_full_res')[0].innerHTML = pp_typeMarkup;

				// Show content
				showimage(correctSizes['width'], correctSizes['height'], correctSizes["containerWidth"], correctSizes["containerHeight"], correctSizes["contentHeight"], correctSizes["contentWidth"], correctSizes["resized"]);
			}
		};

		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>";

			// Define the markup to append, depending on the content type.
			if (pp_type == 'image')
			{
				pp_typeMarkup = '<img id="fullResImage" src="" />';
			} else
			{
				pp_typeMarkup = '';
			}

			// 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">' + pp_typeMarkup + '</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);

			// Set my global selectors
			$pp_pic_holder = $('.pp_pic_holder');
			$ppt = $('.ppt');

			$('div.pp_overlay').css('height', $(document).height()).bind('click', function()
			{
				close();
			});

			$pp_pic_holder.css({ 'opacity': 0 }).addClass(settings.theme);

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

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

				// 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_full_res, .pp_details').fadeOut(settings.animationSpeed, function()
				{
					_preload();
				});

				return false;
			});

			$pp_pic_holder.find('.pp_previous, .pp_arrow_previous').bind('click', function()
			{
				changePicture('previous');
				return false;
			});

			$pp_pic_holder.find('.pp_next, .pp_arrow_next').bind('click', function()
			{
				changePicture('next');
				return false;
			});

			$pp_pic_holder.find('.pp_hoverContainer').css({
				'margin-left': settings.padding / 2
			});

			// If it's not a set, hide the links
			if (!isSet)
			{
				$pp_pic_holder.find('.pp_hoverContainer,.pp_nav').hide();
			};


			// To fix the bug with IE select boxes
			if ($.browser.msie && $.browser.version == 6)
			{
				$('body').addClass('ie6');
				$('select').css('visibility', 'hidden');
			};

			// Then fade it in
			$('div.pp_overlay').css('opacity', 0).fadeTo(settings.animationSpeed, settings.opacity, function()
			{
				$pp_pic_holder.css('opacity', 0).fadeIn(settings.animationSpeed, function()
				{
					$pp_pic_holder.attr('style', 'left:' + $pp_pic_holder.css('left') + ';top:' + $pp_pic_holder.css('top') + ';');
					_preload();
				});
			});
		};
	};

	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);