// lightbox specific functions
	/*
	
	Modifieded by K. de Graaf
	Original taken from gallerificPlus
	Corrected code by use of Galleriffic original code (without modifications)
	
	*/
	
	var defaults = {
		overlayBgColor: 		'#000',		// (string) Background color to overlay; inform a hexadecimal value like: #RRGGBB. Where RR, GG, and BB are the hexadecimal values for the red, green, and blue values of the color.
		overlayOpacity:			0.8,		// (integer) Opacity value to overlay; inform: 0.X. Where X are number from 0 to 9
		// Configuration related to navigation
		fixedNavigation:		false,		// (boolean) Boolean that informs if the navigation (next and prev button) will be fixed or not in the interface.
		// Configuration related to images
		imageLoading:			'/images/lightbox-ico-loading.gif',		// (string) Path and the name of the loading icon
		imageBtnPrev:			'/images/fancy_nav_left.png',			// (string) Path and the name of the prev button image
		imageBtnNext:			'/images/fancy_nav_right.png',			// (string) Path and the name of the next button image
		imageBtnClose:			'/images/fancy_close.png',		// (string) Path and the name of the close btn
		imageBlank:				'/images/lightbox-blank.gif',			// (string) Path and the name of a blank image (one pixel)
		// Configuration related to container image box
		containerBorderSize:	10,			// (integer) If you adjust the padding in the CSS for the container, #lightbox-container-image-box, you will need to update this value
		containerResizeSpeed:	400,		// (integer) Specify the resize duration of container image. These number are miliseconds. 400 is default.
		imageArray:				[],
		activeImage:			0,
		txtImage:				'Foto',	// (string) Specify text "Image"
		txtOf:					'van',		// (string) Specify text "of"
		maxImgWidth:			1000,
		maxImgHeight:			600
	};
	
	this.orgGallery;
	
	function buildLightBox(image,gallery,current) {		
		gallery.pause();
		this.orgGallery = gallery;
	
		// Hide some elements to avoid conflict with overlay in IE. These elements appear above the overlay.
		$('embed, object, select').css({ 'visibility' : 'hidden' });
		// Call the function to create the markup structure; style some elements; assign events in some elements.
		_set_interface();
		
		// Unset total images in imageArray
		defaults.imageArray.length = 0;
		// Unset image active information
		defaults.activeImage = 0;
		
		if ( gallery.data.length == 1 ) {					
			defaults.imageArray.push(new Array(gallery.data[current].slideUrl,gallery.data[current].title));
		} else {
			// Add an Array (as many as we have), with href and title atributes, inside the Array that storage the images references		
			for ( var i = 0; i < gallery.data.length; i++ ) {
				defaults.imageArray.push(new Array(gallery.data[i].slideUrl,gallery.data[i].title));
			}
		}
				
		while ( defaults.imageArray[defaults.activeImage][0] != gallery.data[current].slideUrl ) {
			defaults.activeImage++;
		}
		
		// Call the function that prepares image exibition
		_set_image_to_view();
	}
	
	/**
	 * Create the jQuery lightBox plugin interface
	 *
	 * The HTML markup will be like that:
		<div id="jquery-overlay"></div>
		<div id="jquery-lightbox">
			<div id="lightbox-container-image-box">
				<div id="lightbox-container-image">
					<img src="../fotos/XX.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-ico-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-btn-close.gif">
						</a>
					</div>
				</div>
			</div>
		</div>
	 *
	 */
	function _set_interface() {
		// Apply the HTML markup into body tag
		$('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="' + defaults.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="' + defaults.imageBtnClose + '"></a></div></div></div></div>');	
		// Get page sizes

		var arrPageSizes = ___getPageSize();
		// Style overlay and show it
		$('#jquery-overlay').css({
			backgroundColor:	defaults.overlayBgColor,
			opacity:			defaults.overlayOpacity,
			width:				arrPageSizes[0],
			height:				arrPageSizes[1]
		}).fadeIn();
		// Get page scroll
		var arrPageScroll = ___getPageScroll();
		// Calculate top and left offset for the jquery-lightbox div object and show it
		$('#jquery-lightbox').css({
			top:	arrPageScroll[1] + (arrPageSizes[3] / 10),
			left:	arrPageScroll[0]
		}).show();
		// Assigning click events in elements to close overlay
		$('#jquery-overlay,#jquery-lightbox').click(function() {
			_finish();									
		});
		// Assign the _finish function to lightbox-loading-link and lightbox-secNav-btnClose objects
		$('#lightbox-loading-link,#lightbox-secNav-btnClose').click(function() {
			_finish();
			return false;
		});
		// If window was resized, calculate the new overlay dimensions
		$(window).resize(function() {
			// Get page sizes
			var arrPageSizes = ___getPageSize();
			// Style overlay and show it
			$('#jquery-overlay').css({
				width:		arrPageSizes[0],
				height:		arrPageSizes[1]
			});
			// Get page scroll
			var arrPageScroll = ___getPageScroll();
			// Calculate top and left offset for the jquery-lightbox div object and show it
			$('#jquery-lightbox').css({
				top:	arrPageScroll[1] + (arrPageSizes[3] / 10),
				left:	arrPageScroll[0]
			});
		});
	}
	
	
	/**
	 * Prepares image exibition; doing a imageīs preloader to calculate itīs size
	 *
	 */
	function _set_image_to_view() { // show the loading
		// Show the loading
		$('#lightbox-loading').show();
		
		if ( defaults.fixedNavigation ) {
			$('#lightbox-image,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide();
		} else {
			// Hide some elements
			$('#lightbox-image,#lightbox-nav,#lightbox-nav-btnPrev,#lightbox-nav-btnNext,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide();
		}
				
		// Image preload process
		var objImagePreloader = new Image();
		objImagePreloader.onload = function() {					
			// $('#lightbox-image').attr('src', defaults.imageArray[defaults.activeImage][0]);
			$('#lightbox-image').attr('src', defaults.imageArray[defaults.activeImage][0].split('&')[0] + '&width=' + defaults.maxImgWidth + '&height=' + defaults.maxImgHeight);			
			// Perfomance an effect in the image container resizing it
			_resize_container_image_box(objImagePreloader.width,objImagePreloader.height);
			//	clear onLoad, IE behaves irratically with animated gifs otherwise
			objImagePreloader.onload=function(){};
		};
		
		objImagePreloader.src = defaults.imageArray[defaults.activeImage][0].split('&')[0] + '&width=' + defaults.maxImgWidth + '&height=' + defaults.maxImgHeight;
		
	};
	
	/**
	 * Perfomance an effect in the image container resizing it
	 *
	 * @param integer intImageWidth The imageīs width that will be showed
	 * @param integer intImageHeight The imageīs height that will be showed
	 */
	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 the selected image plus the padding
		var intWidth = (intImageWidth + (defaults.containerBorderSize * 2)); // Plus the imageīs width and the left and right padding value
		var intHeight = (intImageHeight + (defaults.containerBorderSize * 2)); // Plus the imageīs height and the left and right padding value
		// Diferences
		var intDiffW = intCurrentWidth - intWidth;
		var intDiffH = intCurrentHeight - intHeight;
		// Perfomance the effect
		$('#lightbox-container-image-box').animate({ width: intWidth, height: intHeight },defaults.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 });
		$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({ height: intImageHeight + (defaults.containerBorderSize * 2) });
	};
	
	/**
	 * Show the prepared image
	 *
	 */
	function _show_image() {
		$('#lightbox-loading').hide();
		$('#lightbox-image').fadeIn(function() {
			_show_image_data();
			_set_navigation();
		});
		_preload_neighbor_images();
	};
	
	/**
	 * Show the image information
	 *
	 */
	function _show_image_data() {
		$('#lightbox-container-image-data-box').slideDown('fast');
		$('#lightbox-image-details-caption').hide();
		if ( defaults.imageArray[defaults.activeImage][1] ) {
			$('#lightbox-image-details-caption').html(defaults.imageArray[defaults.activeImage][1]).show();
		}
		// If we have a image set, display 'Image X of X'
		if ( defaults.imageArray.length > 1 ) {
			$('#lightbox-image-details-currentNumber').html(defaults.txtImage + ' ' + ( defaults.activeImage + 1 ) + ' ' + defaults.txtOf + ' ' + defaults.imageArray.length).show();
		}		
	}
	
	// handles the reloaction of the URL hash variable when the previous/next buttons are clicked within the lightbox UI.
	function changeThumbnail(activeImg) {
		location.href = '#'+activeImg;

		// IE we need to explicity call goto
		/* if ($.browser.msie) {
			this.goto(activeImg);
		} */
	}
	
	/**
	 * Display the button navigations
	 *
	 */
	function _set_navigation() {
		$('#lightbox-nav').show();

		// Instead to define this configuration in CSS file, we define here. And itīs need to IE. Just.
		$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({ 'background' : 'transparent url(' + defaults.imageBlank + ') no-repeat' });
		
		// Show the prev button, if not the first image in set
		if ( defaults.activeImage != 0 ) {
			if ( defaults.fixedNavigation ) {
				$('#lightbox-nav-btnPrev').css({ 'background' : 'url(' + defaults.imageBtnPrev + ') left 15% no-repeat' })
					.unbind()
					.bind('click',function() {
						defaults.activeImage = defaults.activeImage - 1;
						changeThumbnail();
						_set_image_to_view();
						return false;
					});
			} else {
				// Show the images button for Next buttons
				$('#lightbox-nav-btnPrev').unbind().hover(function() {
					$(this).css({ 'background' : 'url(' + defaults.imageBtnPrev + ') left 15% no-repeat' });
				},function() {
					$(this).css({ 'background' : 'transparent url(' + defaults.imageBlank + ') no-repeat' });
				}).show().bind('click',function() {
					defaults.activeImage = defaults.activeImage - 1;
					changeThumbnail(defaults.activeImage);
					_set_image_to_view();
					return false;
				});
			}
		}
		
		// Show the next button, if not the last image in set
		if ( defaults.activeImage != ( defaults.imageArray.length -1 ) ) {
			if ( defaults.fixedNavigation ) {
				$('#lightbox-nav-btnNext').css({ 'background' : 'url(' + defaults.imageBtnNext + ') right 15% no-repeat' })
					.unbind()
					.bind('click',function() {
						defaults.activeImage = defaults.activeImage + 1;
						changeThumbnail(defaults.activeImage);
						_set_image_to_view();
						return false;
					});
			} else {
				// Show the images button for Next buttons
				$('#lightbox-nav-btnNext').unbind().hover(function() {
					$(this).css({ 'background' : 'url(' + defaults.imageBtnNext + ') right 15% no-repeat' });
				},function() {
					$(this).css({ 'background' : 'transparent url(' + defaults.imageBlank + ') no-repeat' });
				}).show().bind('click',function() {
					defaults.activeImage = defaults.activeImage + 1;
					changeThumbnail(defaults.activeImage);
					_set_image_to_view();
					return false;
				});
			}
		}
	}
	
	/**
	 * Remove jQuery lightBox plugin HTML markup
	 *
	 */
	function _finish() {
		$('#jquery-lightbox').remove();
		$('#jquery-overlay').fadeOut(function() { $('#jquery-overlay').remove(); });
		// Show some elements to avoid conflict with overlay in IE. These elements appear above the overlay.
		$('embed, object, select').css({ 'visibility' : 'visible' });
		this.orgGallery.play();
	}
	/**
	 / THIRD FUNCTION
	 * getPageSize() by quirksmode.com
	 *
	 * @return Array Return an array with page width, height and window width, height
	 */
	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){ // all but Explorer Mac
			xScroll = document.body.scrollWidth;
			yScroll = document.body.scrollHeight;
		} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
			xScroll = document.body.offsetWidth;
			yScroll = document.body.offsetHeight;
		}
		var windowWidth, windowHeight;
		if (self.innerHeight) {	// all except Explorer
			if(document.documentElement.clientWidth){
				windowWidth = document.documentElement.clientWidth; 
			} else {
				windowWidth = self.innerWidth;
			}
			windowHeight = self.innerHeight;
		} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
			windowWidth = document.documentElement.clientWidth;
			windowHeight = document.documentElement.clientHeight;
		} else if (document.body) { // other Explorers
			windowWidth = document.body.clientWidth;
			windowHeight = document.body.clientHeight;
		}	
		// for small pages with total height less then height of the viewport
		if(yScroll < windowHeight){
			pageHeight = windowHeight;
		} else { 
			pageHeight = yScroll;
		}
		// for small pages with total width less then width of the viewport
		if(xScroll < windowWidth){	
			pageWidth = xScroll;		
		} else {
			pageWidth = windowWidth;
		}
		arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight);
		return arrayPageSize;
	};
	/**
	 / THIRD FUNCTION
	 * getPageScroll() by quirksmode.com
	 *
	 * @return Array Return an array with x,y page scroll values.
	 */
	function ___getPageScroll() {
		var xScroll, yScroll;
		if (self.pageYOffset) {
			yScroll = self.pageYOffset;
			xScroll = self.pageXOffset;
		} else if (document.documentElement && document.documentElement.scrollTop) {	 // Explorer 6 Strict
			yScroll = document.documentElement.scrollTop;
			xScroll = document.documentElement.scrollLeft;
		} else if (document.body) {// all other Explorers
			yScroll = document.body.scrollTop;
			xScroll = document.body.scrollLeft;	
		}
		arrayPageScroll = new Array(xScroll,yScroll);
		return arrayPageScroll;
	};
	
		/**
	 * Preload prev and next images being showed
	 *
	 */
	function _preload_neighbor_images() {
		if ( (defaults.imageArray.length -1) > defaults.activeImage ) {
			objNext = new Image();			
			objNext.src = defaults.imageArray[defaults.activeImage + 1][0].split('&')[0] + '&width=' + defaults.maxImgWidth + '&height=' + defaults.maxImgHeight;			
		}
		if ( defaults.activeImage > 0 ) {
			objPrev = new Image();
			objPrev.src = defaults.imageArray[defaults.activeImage -1][0].split('&')[0] + '&width=' + defaults.maxImgWidth + '&height=' + defaults.maxImgHeight;
		}
	}

		 /**
	  * Stop the code execution from a escified time in milisecond
	  *
	  */
	 function ___pause(ms) {
		var date = new Date(); 
		curDate = null;
		do { var curDate = new Date(); }
		while ( curDate - date < ms);
	 };
	
	// end of lightbox functions