jQuery(document).ready(function() {
	jQuery('a[rel^=lightbox]').lightBox();
});

(function($) {
	$.fn.lightBox = function(settings) {
		// Configuration
		settings = jQuery.extend({
			// Overlay
			overlayBgColor: 		'#000',
			overlayOpacity:			0.8,
			// Navigation
			fixedNavigation:		false,
			// Images
			imageLoading:			'/images/lightbox_loading.gif',
			imageBtnPrev:			'/images/lightbox_prevlabel.gif',
			imageBtnNext:			'/images/lightbox_nextlabel.gif',
			imageBtnClose:			'/images/lightbox_closelabel.gif',
			imageBlank:				'/images/lightbox_blank.gif',
			// Image container
			containerBorderSize:	10,
			containerResizeSpeed:	400,
			// Info text
			txtImage:				'Image',
			txtOf:					'of',
			// Keyboard navigation
			keyToClose:				'c',
			keyToPrev:				'p',
			keyToNext:				'n',
			// Don't change
			imageArray:				[],
			activeImage:			0
		}, settings);
		// Cache jQuery object with all elements matched
		var jQueryMatchedObj = this;
		function _initialize() {
			_start(this, jQueryMatchedObj);
			return false;
		}
		function _start(objClicked, jQueryMatchedObj) {
			// Hide elements
			$('embed, object, select').css({ 'visibility' : 'hidden' });
			// Create structure
			_set_interface();
			// Unset image info
			settings.imageArray.length = 0;
			settings.activeImage = 0;
			// Remove duplicate images
			if (jQueryMatchedObj.length > 1) {
				var duplicates = new Array();
				for (var i = jQueryMatchedObj.length - 1; i > -1; i--) {
					if ($.inArray(jQueryMatchedObj[i].getAttribute('href').replace(window.location.protocol + '//' + window.location.hostname, ''), duplicates) == -1)
						duplicates.push(jQueryMatchedObj[i].getAttribute('href').replace(window.location.protocol + '//' + window.location.hostname, ''));
					else
						jQueryMatchedObj.splice(i, 1);
				}
			}
			var thishref = objClicked.getAttribute('href').replace(window.location.protocol + '//' + window.location.hostname, '');
			if ($.browser.msie) thishref = thishref.replace('%20', ' ');
			if ((typeof zoom3 != 'undefined') && ($.inArray(thishref, zoom3) != -1)) {
				// Alternate images
				for (var i = 0; i < zoom3.length; i++) {
					if ($.browser.msie) thishref = zoom3[i].replace(' ', '%20'); else thishref = zoom3[i];
					if (thishref) settings.imageArray.push(new Array(thishref, objClicked.getAttribute('title')));
				}
			} else if ((jQueryMatchedObj.length == 1) || (objClicked.getAttribute('rel') == "lightbox")) {
				// Single image
				settings.imageArray.push(new Array(objClicked.getAttribute('href').replace(window.location.protocol + '//' + window.location.hostname, ''), objClicked.getAttribute('title')));
			} else {
				// Image set
				for (var i = 0; i < jQueryMatchedObj.length; i++) {
					settings.imageArray.push(new Array(jQueryMatchedObj[i].getAttribute('href').replace(window.location.protocol + '//' + window.location.hostname, ''), jQueryMatchedObj[i].getAttribute('title')));
				}
			}
			while (settings.imageArray[settings.activeImage][0] != objClicked.getAttribute('href').replace(window.location.protocol + '//' + window.location.hostname, '')) {
				settings.activeImage++;
			}
			// Prepare image
			_set_image_to_view();
		}
		/*
		<div id="jquery-overlay"></div>
		<div id="jquery-lightbox">
			<div id="lightbox-container-image-box">
				<div id="lightbox-container-image">
					<img src="zoom.jpg" id="lightbox-image">
					<div id="lightbox-nav">
						<a href="#" id="lightbox-nav-btnPrev"></a>
						<a href="#" id="lightbox-nav-btnNext"></a>
					</div>
					<div id="lightbox-loading">
						<a href="#" id="lightbox-loading-link">
							<img src="/images/lightbox_loading.gif">
						</a>
					</div>
				</div>
			</div>
			<div id="lightbox-container-image-data-box">
				<div id="lightbox-container-image-data">
					<div id="lightbox-image-details">
						<span id="lightbox-image-details-caption"></span>
						<span id="lightbox-image-details-currentNumber"></span>
					</div>
					<div id="lightbox-secNav">
						<a href="#" id="lightbox-secNav-btnClose">
							<img src="/images/lightbox_closelabel.gif">
						</a>
					</div>
				</div>
			</div>
		</div>
		*/
		function _set_interface() {
			// Add HTML
			$('body').append('<div id="jquery-overlay"></div><div id="jquery-lightbox"><div id="lightbox-container-image-box"><div id="lightbox-container-image"><img id="lightbox-image"><div style="" id="lightbox-nav"><a href="#" id="lightbox-nav-btnPrev"></a><a href="#" id="lightbox-nav-btnNext"></a></div><div id="lightbox-loading"><a href="#" id="lightbox-loading-link"><img src="' + settings.imageLoading + '"></a></div></div></div><div id="lightbox-container-image-data-box"><div id="lightbox-container-image-data"><div id="lightbox-image-details"><span id="lightbox-image-details-caption"></span><span id="lightbox-image-details-currentNumber"></span></div><div id="lightbox-secNav"><a href="#" id="lightbox-secNav-btnClose"><img src="' + settings.imageBtnClose + '"></a></div></div></div></div>');
			// Get page sizes
			var arrPageSizes = ___getPageSize();
			// Style overlay and display
			$('#jquery-overlay').css({
				backgroundColor:	settings.overlayBgColor,
				opacity:			settings.overlayOpacity,
				width:				arrPageSizes[0],
				height:				arrPageSizes[1]
			}).fadeIn();
			// Get page scroll
			var arrPageScroll = ___getPageScroll();
			// Calculate top and left offset for jquery-lightbox and display
			$('#jquery-lightbox').css({
				top:	arrPageScroll[1] + (arrPageSizes[3] / 10),
				left:	arrPageScroll[0]
			}).show();
			// Assign click events to elements to close
			$('#jquery-overlay, #jquery-lightbox').click(function() {
				_finish();
			});
			// Assign _finish function to lightbox-loading-link and lightbox-secNav-btnClose
			$('#lightbox-loading-link, #lightbox-secNav-btnClose').click(function() {
				_finish();
				return false;
			});
			// If window was resized, calculate new overlay dimensions
			$(window).resize(function() {
				// Get page sizes
				var arrPageSizes = ___getPageSize();
				// Style overlay and display
				$('#jquery-overlay').css({
					width:		arrPageSizes[0],
					height:		arrPageSizes[1]
				});
				// Get page scroll
				var arrPageScroll = ___getPageScroll();
				// Calculate top and left offset for jquery-lightbox and display
				$('#jquery-lightbox').css({
					top:	arrPageScroll[1] + (arrPageSizes[3] / 10),
					left:	arrPageScroll[0]
				});
			});
		}
		function _set_image_to_view() {
			$('#lightbox-loading').show();
			if (settings.fixedNavigation) {
				$('#lightbox-image, #lightbox-container-image-data-box, #lightbox-image-details-currentNumber').hide();
			} else {
				$('#lightbox-image, #lightbox-nav, #lightbox-nav-btnPrev, #lightbox-nav-btnNext, #lightbox-container-image-data-box, #lightbox-image-details-currentNumber').hide();
			}
			// Preload image
			var objImagePreloader = new Image();
			objImagePreloader.onload = function() {
				$('#lightbox-image').attr('src', settings.imageArray[settings.activeImage][0]);
				_resize_container_image_box(objImagePreloader.width, objImagePreloader.height);
				objImagePreloader.onload=function(){};
			};
			objImagePreloader.src = settings.imageArray[settings.activeImage][0];
		};
		function _resize_container_image_box(intImageWidth, intImageHeight) {
			// Get current width and height
			var intCurrentWidth = $('#lightbox-container-image-box').width();
			var intCurrentHeight = $('#lightbox-container-image-box').height();
			// Get the width and height of selected image plus padding
			var intWidth = (intImageWidth + (settings.containerBorderSize * 2));
			var intHeight = (intImageHeight + (settings.containerBorderSize * 2));
			// Calculate differences
			var intDiffW = intCurrentWidth - intWidth;
			var intDiffH = intCurrentHeight - intHeight;
			// Create effect
			$('#lightbox-container-image-box').animate({ width: intWidth, height: intHeight }, settings.containerResizeSpeed, function() { _show_image(); });
			if ((intDiffW == 0) && (intDiffH == 0)) {
				if ($.browser.msie) {
					___pause(250);
				} else {
					___pause(100);
				}
			}
			$('#lightbox-container-image-data-box').css({ width: intImageWidth + (settings.containerBorderSize * 2) });
			$('#lightbox-nav-btnPrev, #lightbox-nav-btnNext').css({ height: intImageHeight + (settings.containerBorderSize * 2) });
		};
		function _show_image() {
			$('#lightbox-loading').hide();
			$('#lightbox-image').fadeIn(400, function() {
				_show_image_data();
				_set_navigation();
			});
			_preload_neighbor_images();
		};
		function _show_image_data() {
			$('#lightbox-image-details-caption').hide();
			if (settings.imageArray[settings.activeImage][1]) {
				$('#lightbox-image-details-caption').html(settings.imageArray[settings.activeImage][1]).show();
			}
			// Image set?
			if (settings.imageArray.length > 1) {
				$('#lightbox-image-details-currentNumber').html(settings.txtImage + ' ' + (settings.activeImage + 1) + ' ' + settings.txtOf + ' ' + settings.imageArray.length).show();
			}
			$('#lightbox-container-image-data-box').slideDown(400);
		}
		function _set_navigation() {
			$('#lightbox-nav').show();
			$('#lightbox-nav-btnPrev, #lightbox-nav-btnNext').css({ 'background' : 'transparent url(' + settings.imageBlank + ') no-repeat' });
			if (settings.activeImage != 0) {
				if (settings.fixedNavigation) {
					$('#lightbox-nav-btnPrev').css({ 'background' : 'url(' + settings.imageBtnPrev + ') left 15% no-repeat' })
						.unbind()
						.bind('click', function() {
							settings.activeImage = settings.activeImage - 1;
							_set_image_to_view();
							return false;
						});
				} else {
					$('#lightbox-nav-btnPrev').unbind().hover(function() {
						$(this).css({ 'background' : 'url(' + settings.imageBtnPrev + ') left 15% no-repeat' });
					}, function() {
						$(this).css({ 'background' : 'transparent url(' + settings.imageBlank + ') no-repeat' });
					}).show().bind('click', function() {
						settings.activeImage = settings.activeImage - 1;
						_set_image_to_view();
						return false;
					});
				}
			}
			if (settings.activeImage != (settings.imageArray.length -1)) {
				if (settings.fixedNavigation) {
					$('#lightbox-nav-btnNext').css({ 'background' : 'url(' + settings.imageBtnNext + ') right 15% no-repeat' })
						.unbind()
						.bind('click', function() {
							settings.activeImage = settings.activeImage + 1;
							_set_image_to_view();
							return false;
						});
				} else {
					$('#lightbox-nav-btnNext').unbind().hover(function() {
						$(this).css({ 'background' : 'url(' + settings.imageBtnNext + ') right 15% no-repeat' });
					}, function() {
						$(this).css({ 'background' : 'transparent url(' + settings.imageBlank + ') no-repeat' });
					}).show().bind('click', function() {
						settings.activeImage = settings.activeImage + 1;
						_set_image_to_view();
						return false;
					});
				}
			}
			_enable_keyboard_navigation();
		}
		function _enable_keyboard_navigation() {
			$(document).keydown(function(objEvent) {
				_keyboard_action(objEvent);
			});
		}
		function _disable_keyboard_navigation() {
			$(document).unbind();
		}
		function _keyboard_action(objEvent) {
			if (objEvent == null) {
				keycode = event.keyCode;
				escapeKey = 27;
			} else {
				keycode = objEvent.keyCode;
				escapeKey = objEvent.DOM_VK_ESCAPE;
			}
			key = String.fromCharCode(keycode).toLowerCase();
			if ((key == settings.keyToClose) || (key == 'x') || (keycode == escapeKey)) {
				_finish();
			}
			if ((key == settings.keyToPrev) || (keycode == 37)) {
				if (settings.activeImage != 0) {
					settings.activeImage = settings.activeImage - 1;
					_set_image_to_view();
					_disable_keyboard_navigation();
				}
			}
			if ((key == settings.keyToNext) || (keycode == 39)) {
				if (settings.activeImage != (settings.imageArray.length - 1)) {
					settings.activeImage = settings.activeImage + 1;
					_set_image_to_view();
					_disable_keyboard_navigation();
				}
			}
		}
		function _preload_neighbor_images() {
			if ((settings.imageArray.length -1) > settings.activeImage) {
				objNext = new Image();
				objNext.src = settings.imageArray[settings.activeImage + 1][0];
			}
			if (settings.activeImage > 0) {
				objPrev = new Image();
				objPrev.src = settings.imageArray[settings.activeImage -1][0];
			}
		}
		function _finish() {
			$('#jquery-lightbox').remove();
			$('#jquery-overlay').fadeOut(function() { $('#jquery-overlay').remove(); });
			$('embed, object, select').css({ 'visibility' : 'visible' });
		}
		function ___getPageSize() {
			var xScroll, yScroll;
			if (window.innerHeight && window.scrollMaxY) {
				xScroll = window.innerWidth + window.scrollMaxX;
				yScroll = window.innerHeight + window.scrollMaxY;
			} else if (document.body.scrollHeight > document.body.offsetHeight) {
				xScroll = document.body.scrollWidth;
				yScroll = document.body.scrollHeight;
			} else {
				xScroll = document.body.offsetWidth;
				yScroll = document.body.offsetHeight;
			}
			var windowWidth, windowHeight;
			if (self.innerHeight) {
				if (document.documentElement.clientWidth) {
					windowWidth = document.documentElement.clientWidth;
				} else {
					windowWidth = self.innerWidth;
				}
				windowHeight = self.innerHeight;
			} else if (document.documentElement && document.documentElement.clientHeight) {
				windowWidth = document.documentElement.clientWidth;
				windowHeight = document.documentElement.clientHeight;
			} else if (document.body) {
				windowWidth = document.body.clientWidth;
				windowHeight = document.body.clientHeight;
			}
			if (yScroll < windowHeight) {
				pageHeight = windowHeight;
			} else {
				pageHeight = yScroll;
			}
			if (xScroll < windowWidth) {
				pageWidth = xScroll;
			} else {
				pageWidth = windowWidth;
			}
			arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight);
			return arrayPageSize;
		};
		function ___getPageScroll() {
			var xScroll, yScroll;
			if (self.pageYOffset) {
				yScroll = self.pageYOffset;
				xScroll = self.pageXOffset;
			} else if (document.documentElement && document.documentElement.scrollTop) {
				yScroll = document.documentElement.scrollTop;
				xScroll = document.documentElement.scrollLeft;
			} else if (document.body) {
				yScroll = document.body.scrollTop;
				xScroll = document.body.scrollLeft;
			}
			arrayPageScroll = new Array(xScroll, yScroll);
			return arrayPageScroll;
		};
		function ___pause(ms) {
			var date = new Date();
			curDate = null;
			do { var curDate = new Date(); }
			while (curDate - date < ms);
		};
		return this.unbind('click').click(_initialize);
	};
})(jQuery);