/*

	ColorBox v1.2.9b - a full featured, light-weight, customizable lightbox based on jQuery 1.3

	(c) 2009 Jack Moore - www.colorpowered.com - jack@colorpowered.com

	Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php

*/

(function ($) {

	

	// ****************

	// COMMON VARIABLES

	// ****************

	

	//jQuery Object Variables

	var $overlay, $cbox, $wrap, $content, $topBorder, $leftBorder, $rightBorder, $bottomBorder, $related, $window, $loaded, $loadingOverlay, $loadingGraphic, $title, $current, $slideshow, $next, $prev, $close,

	

	//Variables

	publicMethod, interfaceHeight, interfaceWidth, loadedHeight, loadedWidth, maxWidth, maxHeight, element, index, settings, open, callback, colorbox = 'colorbox', hover = 'hover',



	//Functions

	prev, next, init, load, position, dimensions, slideshow, close,

	

	//Events

	cbox_open = 'cbox_open', cbox_load = 'cbox_load', cbox_complete = 'cbox_complete', cbox_close = 'cbox_close', cbox_closed = 'cbox_closed',



	// ColorBox Default Settings.	

	// See http://colorpowered.com/colorbox for details.

	defaults = {

		transition: "elastic",

		speed: 700,

		width: false,

		height: false,

		initialWidth: "400",

		initialHeight: "400",

		maxWidth: false,

		maxHeight: false,

		resize: true,

		inline: false,

		html: false,

		iframe: false,

		photo: false,

		href: false,

		title: false,

		rel: false,

		opacity: 0.9,

		preloading: true,

		current: "image {current} of {total}",

		previous: "previous",

		next: "next",

		close: "close",

		open: false,

		overlayClose: true,

		slideshow: false,

		slideshowAuto: true,

		slideshowSpeed: 4200,

		slideshowStart: "start slideshow",

		slideshowStop: "stop slideshow"

	};



	// ****************

	// HELPER FUNCTIONS

	// ****************

	

	// Set Navigation Keys

	function cbox_key(e) {

		if (e.keyCode === 37) {

			e.preventDefault();

			$prev.click();

		} else if (e.keyCode === 39) {

			e.preventDefault();

			$next.click();

		}

	}



	// Convert % values to pixels

	function setSize(size, dimension) {

		dimension = dimension === 'x' ? document.documentElement.clientWidth : document.documentElement.clientHeight;

		return (typeof size === 'string') ? (size.match(/%/) ? (dimension / 100) * parseInt(size, 10) : parseInt(size, 10)) : size;

	}



	// Checks an href to see if it is a photo.

	// There is a force photo option for hrefs that cannot be matched by this regex.

	function isImage(url) {

		return settings.photo ? true : url.match(/\.(gif|png|jpg|jpeg|bmp)(?:\?([^#]*))?(?:#(\.*))?$/i);

	}

	

	// Assigns functions results to their respective settings.  This allows functions to be used to set ColorBox options.

	function process() {

		for (var i in settings) {

			if (typeof(settings[i]) === 'function') {

			    settings[i] = settings[i].call(element);

			}

		}

	}



	$.fn.colorbox = function (options, custom_callback) {

		

		if (this.length) {

			this.each(function () {

				var data = $(this).data(colorbox) ? $.extend({},

					$(this).data(colorbox), options) : $.extend({}, defaults, options);

				$(this).data(colorbox, data).addClass("cboxelement");

			});

		} else {

			$(this).data(colorbox, $.extend({}, defaults, options));

		}

		

		$(this).unbind("click.colorbox").bind("click.colorbox", function (event) {

			

			element = this;

			

			settings = $(element).data(colorbox);

			

			process();//process settings functions

			

			$().bind("keydown.cbox_close", function (e) {

				if (e.keyCode === 27) {

					e.preventDefault();

					$close.click();

				}

			});

			if (settings.overlayClose === true) {

				$overlay.css({"cursor": "pointer"}).one('click', close);

			}

			

			//remove the focus from the anchor to prevent accidentally calling

			//colorbox multiple times (by pressing the 'Enter' key

			//after colorbox has opened, but before the user has clicked on anything else)

			element.blur();

			

			callback = custom_callback || false;

			

			var rel = settings.rel || element.rel;

			

			if (rel && rel !== 'nofollow') {

				$related = $('.cboxelement').filter(function () {

					var relRelated = $(this).data(colorbox).rel || this.rel;

					return (relRelated === rel);

				});

				index = $related.index(element);

				

				if (index < 0) { //this checks direct calls to colorbox

					$related = $related.add(element);

					index = $related.length - 1;

				}

			

			} else {

				$related = $(element);

				index = 0;

			}

			if (!open) {

				$.event.trigger(cbox_open);

				$close.html(settings.close);

				$overlay.css({"opacity": settings.opacity}).show();

				open = true;

				position(setSize(settings.initialWidth, 'x'), setSize(settings.initialHeight, 'y'), 0);

				if ($.browser.msie && $.browser.version < 7) {

					$window.bind("resize.cboxie6 scroll.cboxie6", function () {

						$overlay.css({width: $window.width(), height: $window.height(), top: $window.scrollTop(), left: $window.scrollLeft()});

					}).trigger('scroll.cboxie6');

				}

			}

			slideshow();

			load();

			

			event.preventDefault();

		});

		

		if (options && options.open) {

			$(this).triggerHandler('click.colorbox');

		}

		

		return this;

	};

	



	// Initialize ColorBox: store common calculations, preload the interface graphics, append the html.

	// This preps colorbox for a speedy open when clicked, and lightens the burdon on the browser by only

	// having to run once, instead of each time colorbox is opened.

	init = function () {				

		// jQuery object generator to save a bit of space

		function $div(id) {

			return $('<div id="cbox' + id + '"/>');

		}

		// Create & Append jQuery Objects

		$window = $(window);

		$cbox = $('<div id="colorbox"/>');

		$overlay = $div("Overlay").hide();

		$wrap = $div("Wrapper");

		$content = $div("Content").append(

			$loaded = $div("LoadedContent").css({width: 0, height: 0}),

			$loadingOverlay = $div("LoadingOverlay"),

			$loadingGraphic = $div("LoadingGraphic"),

			$title = $div("Title"),

			$current = $div("Current"),

			$slideshow = $div("Slideshow"),

			$next = $div("Next"),

			$prev = $div("Previous"),

			$close = $div("Close")

		);

		$wrap.append( // The 3x3 Grid that makes up ColorBox

			$('<div/>').append(

				$div("TopLeft"),

				$topBorder = $div("TopCenter"),

				$div("TopRight")

			),

			$('<div/>').append(

				$leftBorder = $div("MiddleLeft"),

				$content,

				$rightBorder = $div("MiddleRight")

			),

			$('<div/>').append(

				$div("BottomLeft"),

				$bottomBorder = $div("BottomCenter"),

				$div("BottomRight")

			)

		).children().children().css({'float': 'left'});

		$('body').prepend($overlay, $cbox.append($wrap));

		

		if ($.browser.msie && $.browser.version < 7) {

			$overlay.css('position', 'absolute');

		}

		

		// Add rollover event to navigation elements

		$content.children()

		.addClass(hover)

		.mouseover(function () { $(this).addClass(hover); })

		.mouseout(function () { $(this).removeClass(hover); })

		.hide();

		

		// Cache values needed for size calculations

		interfaceHeight = $topBorder.height() + $bottomBorder.height() + $content.outerHeight(true) - $content.height();//Subtraction needed for IE6

		interfaceWidth = $leftBorder.width() + $rightBorder.width() + $content.outerWidth(true) - $content.width();

		loadedHeight = $loaded.outerHeight(true);

		loadedWidth = $loaded.outerWidth(true);

		

		// Setting padding to remove the need to do size conversions during the animation step.

		$cbox.css({"padding-bottom": interfaceHeight, "padding-right": interfaceWidth}).hide();

		

		// Setup button & key events.

		$next.click(next);

		$prev.click(prev);

		$close.click(close);

		

		// Adding the 'hover' class allowed the browser to load the hover-state

		// background graphics.  The class can now can be removed.

		$content.children().removeClass(hover);

	};



	position = function (mWidth, mHeight, speed, loadedCallback) {

		var winHeight = document.documentElement.clientHeight,

		posTop = winHeight / 2 - mHeight / 2,

		posLeft = document.documentElement.clientWidth / 2 - mWidth / 2,

		animate_speed;

		

		//keeps the box from expanding to an inaccessible area offscreen.

		if (mHeight > winHeight) { posTop -=(mHeight - winHeight); }

		if (posTop < 0) { posTop = 0; } 

		if (posLeft < 0) { posLeft = 0; }

		

		posTop += $window.scrollTop();

		posLeft += $window.scrollLeft();

		

		mWidth = mWidth - interfaceWidth;

		mHeight = mHeight - interfaceHeight;

		

		//setting the speed to 0 to reduce the delay between same-sized content.

		animate_speed = ($cbox.width() === mWidth && $cbox.height() === mHeight) ? 0 : speed;

		

		//this gives the wrapper plenty of breathing room so it's floated contents can move around smoothly,

		//but it has to be shrank down around the size of div#colorbox when it's done.  If not,

		//it can invoke an obscure IE bug when using iframes.

		$wrap[0].style.width = $wrap[0].style.height = "9999px";

		

		function modalDimensions (that) {

			//loading overlay size has to be sure that IE6 uses the correct height.

			$topBorder[0].style.width = $bottomBorder[0].style.width = $content[0].style.width = that.style.width;

			$loadingGraphic[0].style.height = $loadingOverlay[0].style.height = $content[0].style.height = $leftBorder[0].style.height = $rightBorder[0].style.height = that.style.height;

		}

		

		$cbox.dequeue().animate({height:mHeight, width:mWidth, top:posTop, left:posLeft}, {duration: animate_speed,

			complete: function(){

				modalDimensions(this);

				

				//shrink the wrapper down to exactly the size of colorbox to avoid a bug in IE's iframe implementation.

				$wrap[0].style.width = (mWidth+interfaceWidth) + "px";

				$wrap[0].style.height = (mHeight+interfaceHeight) + "px";

				

				if (loadedCallback) {loadedCallback();}

			},

			step: function(){

				modalDimensions(this);

			}

		});

	};



	dimensions = function (object) {

		if(!open){ return; }

		

		$window.unbind('resize.cbox_resize');

		

		var width, height, topMargin, prev, prevSrc, next, nextSrc, photo,

		speed = settings.transition==="none" ? 0 : settings.speed;

		

		$loaded.remove();

		$loaded = $(object);

		

		function getWidth(){

			if(settings.width){

				width = maxWidth;

			} else {

				width = maxWidth && maxWidth < $loaded.width() ? maxWidth : $loaded.width();

			}

			return width;

		}

		function getHeight(){

			if(settings.height){

				height = maxHeight;

			} else {

				height = maxHeight && maxHeight < $loaded.height() ? maxHeight : $loaded.height();

			}

			return height;

		}

		

		$loaded.hide().appendTo('body')

		.attr({id:'cboxLoadedContent'})

		.css({width:getWidth()})

		.css({height:getHeight()})//sets the height independently from the width in case the new width influences the value of height.

		.prependTo($content);

		

		

		// Hides 'select' form elements in IE6 because they would otherwise sit on top of the overlay.

		if ($.browser.msie && $.browser.version < 7) {

			$('select:not(#colorbox select)').filter(function(){

				return $(this).css('visibility') !== 'hidden';

			}).css({'visibility':'hidden'}).one(cbox_close, function(){

				$(this).css({'visibility':'inherit'});

			});

		}

		

		photo = $('#cboxPhoto')[0];

		if (photo && settings.height) {

			topMargin = (height - parseInt(photo.style.height, 10))/2;

			photo.style.marginTop = (topMargin > 0 ? topMargin : 0)+'px';

		}

		

		function setPosition (s) {

			var mWidth = width+loadedWidth+interfaceWidth,

			mHeight = height+loadedHeight+interfaceHeight;

			

			position(mWidth, mHeight, s, function(){

				if (!open) { return; }

				

				if ($.browser.msie) {

					//This fadeIn helps the bicubic resampling to kick-in.

					if( photo ){$loaded.fadeIn(100);}

					//IE adds a filter when ColorBox fades in and out that can cause problems if the loaded content contains transparent pngs.

					$cbox.css('filter','');

				}

				

				$content.children().show();

				

				//Waited until the iframe is added to the DOM & it is visible before setting the src.

				//This increases compatability with pages using DOM dependent JavaScript.

				$('#cboxIframeTemp').after("<iframe id='cboxIframe' name='iframe_"+new Date().getTime()+"' frameborder=0 src='"+(settings.href || element.href)+"' />").remove();

				

				$loadingOverlay.hide();

				$loadingGraphic.hide();

				$slideshow.hide();

				

				if ($related.length>1) {

					$current.html(settings.current.replace(/\{current\}/, index+1).replace(/\{total\}/, $related.length));

					$next.html(settings.next);

					$prev.html(settings.previous);

					

					$().unbind('keydown', cbox_key).bind('keydown', cbox_key);

					

					if(settings.slideshow){

						$slideshow.show();

					}

				} else {

					$current.hide();

					$next.hide();

					$prev.hide();

				}

				

				$title.html(settings.title || element.title);

				

				$.event.trigger(cbox_complete);

				

				if (callback) {

					callback.call(element);

				}

				

				if (settings.transition === 'fade'){

					$cbox.fadeTo(speed, 1, function(){

						if($.browser.msie){$content.css('filter','');}

					});

				}

				

				$window.bind('resize.cbox_resize', function(){

					position(mWidth, mHeight, 0);

				});

			});

		}

		if (settings.transition === 'fade') {

			$cbox.fadeTo(speed, 0, function(){setPosition(0);});

		} else {

			setPosition(speed);

		}

		

		// Preloads images within a rel group

		if (settings.preloading && $related.length>1) {

			prev = index > 0 ? $related[index-1] : $related[$related.length-1];

			next = index < $related.length-1 ? $related[index+1] : $related[0];

			nextSrc = $(next).data(colorbox).href || next.href;

			prevSrc = $(prev).data(colorbox).href || prev.href;

			

			if(isImage(nextSrc)){

				$('<img />').attr('src', nextSrc);

			}

			if(isImage(prevSrc)){

				$('<img />').attr('src', prevSrc);

			}

		}

	};



	load = function () {

		var height, width, href, loadingElement;



		element = $related[index];

		

		settings = $(element).data(colorbox);

		

		//convert functions to static values

		process();



		$.event.trigger(cbox_load);

		

		// Evaluate the height based on the optional height and width settings.

		height = settings.height ? setSize(settings.height, 'y') - loadedHeight - interfaceHeight : false;

		width = settings.width ? setSize(settings.width, 'x') - loadedWidth - interfaceWidth : false;

		

		href = settings.href || element.href;

		

		$loadingOverlay.show();

		$loadingGraphic.show();

		$close.show();

		

		//Re-evaluate the maximum dimensions based on the optional maxheight and maxwidth.

		if(settings.maxHeight){

			maxHeight = settings.maxHeight ? setSize(settings.maxHeight, 'y') - loadedHeight - interfaceHeight : false;

			height = height && height < maxHeight ? height : maxHeight;

		}

		if(settings.maxWidth){

			maxWidth = settings.maxWidth ? setSize(settings.maxWidth, 'x') - loadedWidth - interfaceWidth : false;

			width = width && width < maxWidth ? width : maxWidth;

		}

		

		maxHeight = height;

		maxWidth = width;

		

		if (settings.inline) {

			$('<div id="cboxInlineTemp" />').hide().insertBefore($(href)[0]).bind(cbox_load+' '+cbox_close, function(){

				$loaded.children().insertBefore(this);

				$(this).remove();

			});

			dimensions($(href).wrapAll('<div/>').parent());

		} else if (settings.iframe) {

			dimensions(

				$("<div><div id='cboxIframeTemp' /></div>")

			);//timestamp to prevent caching.

		} else if (settings.html) {

			dimensions(

				$('<div/>').html(settings.html)

			);

		} else if (isImage(href)){

			loadingElement = new Image();

			loadingElement.onload = function(){

				loadingElement.onload = null;

				

				if((maxHeight || maxWidth) && settings.resize){

					var width = this.width,

					height = this.height,

					percent = 0,

					that = this,

					setResize = function(){

						height += height * percent;

						width += width * percent;

						that.height = height;

						that.width = width;	

					};

					

					if( maxWidth && width > maxWidth ){

						percent = (maxWidth - width) / width;

						setResize();

					}

					if( maxHeight && height > maxHeight ){

						percent = (maxHeight - height) / height;

						setResize();

					}

				}

				dimensions($("<div />").css({width:this.width, height:this.height}).append($(this).css({width:this.width, height:this.height, display:"block", margin:"auto", border:0}).attr('id', 'cboxPhoto')));

				if($related.length > 1){

					$(this).css({cursor:'pointer'}).click(next);

				}

				if($.browser.msie && $.browser.version == 7){

					this.style.msInterpolationMode='bicubic';

				}

			};

			loadingElement.src = href;

		} else {

			$('<div />').load(href, function(data, textStatus){

				if(textStatus === "success"){

					dimensions($(this));

				} else {

					dimensions($("<p>Request unsuccessful.</p>"));

				}

			});

		}	

	};



	//navigates to the next page/image in a set.

	next = function () {

		index = index < $related.length-1 ? index+1 : 0;

		load();

	};

	

	prev = function () {

		index = index > 0 ? index-1 : $related.length-1;

		load();

	};



	slideshow = function () {

		var stop, timeOut, className = 'cboxSlideshow_';

		

		$slideshow.bind(cbox_close, function(){

			clearTimeout(timeOut);

			$slideshow.unbind();

		});

		

		function start(){

			$slideshow

			.text(settings.slideshowStop)

			.bind(cbox_complete, function(){

				timeOut = setTimeout(next, settings.slideshowSpeed);

			})

			.bind(cbox_load, function(){

				clearTimeout(timeOut);	

			}).one("click", function(){

				stop();

				$(this).removeClass(hover);

			});

			$cbox.removeClass(className+"off").addClass(className+"on");

		}

		

		stop = function(){

			clearTimeout(timeOut);

			$slideshow

			.text(settings.slideshowStart)

			.unbind(cbox_complete+' '+cbox_load)

			.one("click", function(){

				start();

				timeOut = setTimeout(next, settings.slideshowSpeed);

				$(this).removeClass(hover);

			});

			$cbox.removeClass(className+"on").addClass(className+"off");

		};

		

		if(settings.slideshow && $related.length>1){

			if(settings.slideshowAuto){

				start();

			} else {

				stop();

			}

		}

	};



	//public function for closing colorbox.  To use this within an iframe use the following format: parent.$.fn.colorbox.close();

	close = function () {

		$.event.trigger(cbox_close);

		open = false;

		$().unbind('keydown', cbox_key).unbind("keydown.cbox_close");

		$window.unbind('resize.cbox_resize resize.cboxie6 scroll.cboxie6');

		$overlay.css({cursor:'auto'}).fadeOut('fast');

		

		$content.children().hide();

		

		$cbox

		.stop(true, false)

		.removeClass()

		.fadeOut('fast', function(){

			$loaded.remove();

			$cbox.css({'opacity':1});

			$.event.trigger(cbox_closed);

		});

		

	};



	// Create Public Methods

	publicMethod = $.fn.colorbox;

	publicMethod.init = init;

	publicMethod.next = next;

	publicMethod.prev = prev;

	publicMethod.close = close;

	publicMethod.load = load;

	publicMethod.position = position;

	publicMethod.dimensions = dimensions;

	publicMethod.element = function(){ return element; };

	publicMethod.settings = defaults;



	// Initializes ColorBox when the DOM has loaded

	$(function () {

		init();

	});



}(jQuery));