/*
	ColorBox v1.2.1 - 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($) {

	var settings, callback, maxWidth, maxHeight, loadedWidth, loadedHeight, interfaceHeight, interfaceWidth, index, $related, ssTimeout, $slideshow, $window, $close, $next, $prev, $current, $title, $modal, $wrap, $loadingOverlay, $loadingGraphic, $overlay, $modalContent, $loaded, $borderTopCenter, $borderMiddleLeft, $borderMiddleRight, $borderBottomCenter;

	/* Helper Functions */
	//function for IE6 to set the background overlay
	function IE6Overlay() {
		$overlay.css({ "position": "absolute", width: $window.width(), height: $window.height(), top: $window.scrollTop(), left: $window.scrollLeft() });
	}

	function slideshow() {
		var stop;
		function start() {
			$slideshow
			.text(settings.slideshowStop)
			.bind("cbox_complete", function() {
				ssTimeout = setTimeout($.fn.colorbox.next, settings.slideshowSpeed);
			})
			.bind("cbox_load", function() {
				clearTimeout(ssTimeout);
			}).one("click", function() {
				stop();
				$(this).removeClass('hover');
			});
			$modal.removeClass("cboxSlideshow_off").addClass("cboxSlideshow_on");
		}

		stop = function() {
			clearTimeout(ssTimeout);
			$slideshow
			.text(settings.slideshowStart)
			.unbind('cbox_complete cbox_load')
			.one("click", function() {
				start();
				ssTimeout = setTimeout($.fn.colorbox.next, settings.slideshowSpeed);
				$(this).removeClass('hover');
			});
			$modal.removeClass("cboxSlideshow_on").addClass("cboxSlideshow_off");
		};

		if (settings.slideshow && $related.length > 1) {
			if (settings.slideshowAuto) {
				start();
			} else {
				stop();
			}
		}
	}

	function clearInline() {
		if ($("#cboxInlineTemp").length > 0) {
			$loaded.children().insertAfter("#cboxInlineTemp");
		}
	}

	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;
	}

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

	/* Initializes ColorBox when the DOM has loaded */
	$(function() {
		$.fn.colorbox.init();
	});

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

		if (this.length) {
			this.each(function() {

				if ($(this).data("colorbox")) {
					$(this).data("colorbox", $.extend({}, $(this).data("colorbox"), options));
				} else {
					$(this).data("colorbox", $.extend({}, $.fn.colorbox.settings, options));
				}

				var data = $(this).data("colorbox");
				data.title = data.title ? data.title : this.title;
				data.href = data.href ? data.href : this.href;
				data.initialHref = this.href;
				data.rel = data.rel ? data.rel : this.rel;
				$(this).data("colorbox", data).addClass("cboxelement");
			});
		} else {
			$(this).data("colorbox", $.extend({}, $.fn.colorbox.settings, options));
		}

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

			settings = $(this).data('colorbox');

			//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)
			this.blur();

			if (custom_callback) {
				var that = this;
				callback = function() { $(that).each(custom_callback); };
			} else {
				callback = function() { };
			}

			if (settings.rel && settings.rel != 'nofollow') {
				$related = $('.cboxelement').filter(function() {
					return ($(this).data("colorbox").rel == settings.rel);
				});
				index = $related.index(this);
			} else {
				$related = $(this);
				index = 0;
			}
			if ($modal.data("open") !== true) {
				$.event.trigger('cbox_open');
				$close.html(settings.close);
				$overlay.css({ "opacity": settings.opacity }).show();
				$modal.data("open", true);
				$.fn.colorbox.position(setSize(settings.initialWidth, 'x'), setSize(settings.initialHeight, 'y'), 0);
				if ($.browser.msie && $.browser.version < 7) {
					$window.bind("resize scroll", IE6Overlay);
				}
			}
			slideshow();
			$.fn.colorbox.load();

			if (settings.overlayClose === true) {
				$overlay.css({ "cursor": "pointer" }).click($.fn.colorbox.close);
			}
			event.preventDefault();
		});

		if (options && options.open) {
			$(this).triggerHandler('click.colorbox');
		}

		return this;
	};

	/*
	Initialize the modal: 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.
	*/
	$.fn.colorbox.init = function() {

		$window = $(window);

		$('body').prepend(
			$overlay = $('<div id="cboxOverlay" />').hide(),
			$modal = $('<div id="colorbox" />')
		);

		$wrap = $('<div id="cboxWrapper" />').appendTo($modal).append(
			$('<div/>').append(
				$('<div id="cboxTopLeft"/>'),
				$borderTopCenter = $('<div id="cboxTopCenter"/>'),
				$('<div id="cboxTopRight"/>')
			),
			$borderMiddleLeft = $('<div id="cboxMiddleLeft" />'),
			$modalContent = $('<div id="cboxContent" />'),
			$borderMiddleRight = $('<div id="cboxMiddleRight" />'),
			$('<div/>').append(
				$('<div id="cboxBottomLeft"/>'),
				$borderBottomCenter = $('<div id="cboxBottomCenter"/>'),
				$('<div id="cboxBottomRight"/>')
			)
		);

		$wrap.find("[id]").css({ 'float': 'left' });

		$modalContent.append(
		//loaded is filled with temporary HTML to allow the CSS backgrounds for those elements to load before ColorBox is actually called.
			$loaded = $('<div id="cboxLoadedContent" />'),
			$loadingOverlay = $('<div id="cboxLoadingOverlay" />'),
			$loadingGraphic = $('<div id="cboxLoadingGraphic" />'),
			$title = $('<div id="cboxTitle" />'),
			$current = $('<div id="cboxCurrent" />'),
			$slideshow = $('<div id="cboxSlideshow" />'),
			$next = $('<div id="cboxNext" />').click($.fn.colorbox.next),
			$prev = $('<div id="cboxPrevious" />').click($.fn.colorbox.prev),
			$close = $('<div id="cboxClose" />').click($.fn.colorbox.close)
		);

		$modalContent.children()
			.addClass("hover")
			.mouseover(function() { $(this).addClass("hover"); })
			.mouseout(function() { $(this).removeClass("hover"); })
			.hide();

		//precalculate sizes that will be needed multiple times.
		interfaceHeight = $borderTopCenter.height() + $borderBottomCenter.height() + $modalContent.outerHeight(true) - $modalContent.height(); //Subtraction needed for IE6
		interfaceWidth = $borderMiddleLeft.width() + $borderMiddleRight.width() + $modalContent.outerWidth(true) - $modalContent.width();
		loadedHeight = $loaded.outerHeight(true);
		loadedWidth = $loaded.outerWidth(true);

		$modal.css({ "padding-bottom": interfaceHeight, "padding-right": interfaceWidth }).hide(); //the padding removes the need to do size conversions during the animation step.

		//Setup button & key events.
		$().bind("keydown.cbox_close", function(e) {
			if (e.keyCode == 27) {
				e.preventDefault();
				$close.click();
			}
		});

		$modalContent.children().removeClass("hover");
	};

	//navigates to the next page/image in a set.
	$.fn.colorbox.next = function() {
		index = index < $related.length - 1 ? index + 1 : 0;
		$.fn.colorbox.load();
	};

	$.fn.colorbox.prev = function() {
		index = index > 0 ? index - 1 : $related.length - 1;
		$.fn.colorbox.load();
	};

	$.fn.colorbox.position = function(mWidth, mHeight, speed, loadedCallback) {
		var winHeight = document.documentElement.clientHeight;
		var posTop = winHeight / 2 - mHeight / 2;
		var posLeft = document.documentElement.clientWidth / 2 - mWidth / 2;
		//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;

		//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.
			$borderTopCenter[0].style.width = $borderBottomCenter[0].style.width = $modalContent[0].style.width = that.style.width;
			$loadingGraphic[0].style.height = $loadingOverlay[0].style.height = $modalContent[0].style.height = $borderMiddleLeft[0].style.height = $borderMiddleRight[0].style.height = that.style.height;
		}

		//setting the speed to 0 to reduce the delay between same-sized content.
		var animate_speed = ($modal.width() === mWidth && $modal.height() === mHeight) ? 0 : speed;
		$modal.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(); }
				if ($.browser.msie && $.browser.version < 7) { IE6Overlay(); }
			},
			step: function() {
				modalDimensions(this);
			}
		});
	};

	$.fn.colorbox.dimensions = function(object) {
		$window.unbind('resize.cbox_resize');
		if ($modal.data("open") !== true) { return false; }

		var speed = settings.transition == "none" ? 0 : settings.speed;
		$loaded.remove();
		$loaded = $(object);

		function getWidth() {
			var width = settings.width ? settings.width - loadedWidth - interfaceWidth : $loaded.width();
			if (maxWidth && maxWidth < width) {
				width = maxWidth;
			}
			return width;
		}

		function getHeight() {
			var height = settings.height ? settings.height - loadedHeight - interfaceHeight : $loaded.height();
			if (maxHeight && maxHeight < height) {
				height = maxHeight;
			}
			return height;
		}

		$loaded.hide().appendTo('body')
		.css({ width: getWidth() })
		.css({ height: getHeight() })//sets the height independently from the width in case the new width influences the value of height.
		.attr({ id: 'cboxLoadedContent' })
		.prependTo($modalContent);

		if ($.browser.msie && $.browser.version < 7) {
			$('select').not($('#colorbox select')).css({ 'visibility': 'hidden' });
		}

		if ($('#cboxPhoto').length > 0 && settings.height) {
			var topMargin = ($loaded.height() - parseInt($('#cboxPhoto')[0].style.height, 10)) / 2;
			$('#cboxPhoto').css({ marginTop: (topMargin > 0 ? topMargin : 0) });
		}

		function setPosition(s) {
			var mWidth = $loaded.width() + loadedWidth + interfaceWidth;
			var mHeight = $loaded.height() + loadedHeight + interfaceHeight;
			$.fn.colorbox.position(mWidth, mHeight, s, function() {
			if (settings.title != "") {
				$title.html(settings.title);
				$("#cboxLoadedContent").addClass("has-title")
			}
				if ($modal.data("open") !== true) {
					return false;
				}
				$modalContent.children().show();
				$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).one('keydown', cbox_key);

					if (settings.slideshow) {
						$slideshow.show();
					}
				} else {
					$current.add($next).add($prev).hide();
				}

				$('#cboxIframe').attr('src', $('#cboxIframe').attr('src')); //reloads the iframe now that it is added to the DOM & it is visible, which increases compatability with pages using DOM dependent JavaScript.
				$("#cboxTitle:empty").css("display", "none");

				$.event.trigger('cbox_complete');
				callback();
				if (settings.transition === 'fade') {
					$modal.fadeTo(speed, 1);
				}
				$window.bind('resize.cbox_resize', function() {
					$.fn.colorbox.position(mWidth, mHeight, 0);
				});
				return true;
			});
		}
		if (settings.transition == 'fade') {
			$modal.fadeTo(speed, 0, function() { setPosition(0); });
		} else {
			setPosition(speed);
		}

		if (settings.preloading && $related.length > 1) {
			var previous = index > 0 ? $related[index - 1] : $related[$related.length - 1];
			var next = index < $related.length - 1 ? $related[index + 1] : $related[0];
			if (isImage($(next).data('colorbox').href)) {
				$('<img />').attr('src', next);
			}
			if (isImage($(previous).data('colorbox').href)) {
				$('<img />').attr('src', previous);
			}
		}

		return true;
	};

	$.fn.colorbox.load = function() {
		$.event.trigger('cbox_load');

		//if ($($related[index]).data('colorbox')){
		settings = $($related[index]).data('colorbox');
		//}

		if (settings.width) { settings.width = setSize(settings.width, 'x'); }
		if (settings.height) { settings.height = setSize(settings.height, 'y'); }

		$loadingOverlay.show();
		$loadingGraphic.show();
		$close.show();
		clearInline(); //puts inline elements back if they are being used

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

		var href = settings.href;
		var initialHref = settings.initialHref;

		if (href.search(/\?/) >= 0) href += "&colorbox=true"
		else href += "?colorbox=true"

		if (href != initialHref) href += "&file=" + initialHref.replace(/\?.*$/, "");

		if (settings.inline) {
			$('<div id="cboxInlineTemp" />').hide().insertBefore($(href)[0]);
			$.fn.colorbox.dimensions($(href).wrapAll("<div />").parent());
		} else if (settings.iframe) {
			$.fn.colorbox.dimensions(
				$("<div><iframe id='cboxIframe' name='iframe_" + new Date().getTime() + "' frameborder=0 src='" + href + "' /></div>")
			); //timestamp to prevent caching.
		} else if (isImage(href)) {
			var loadingElement = new Image();
			loadingElement.onload = function() {
				loadingElement.onload = null;

				if (maxHeight || maxWidth) {
					var width = this.width;
					var height = this.height;
					var percent = 0;
					var that = this;

					var 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();
					}
				}

				$.fn.colorbox.dimensions($("<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) {
					$(this).css({ cursor: 'pointer' }).click($.fn.colorbox.next);
				}
			};
			loadingElement.src = href;
		} else {
			$('<div />').load(href, function(data, textStatus) {
				if (textStatus == "success") {
					$.fn.colorbox.dimensions($(this));
				} else {
					$.fn.colorbox.dimensions($("<p>" + href + ": Request unsuccessful.</p>"));
				}
			});
		}
	};

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

		$window.unbind('resize.cbox_resize');
		$slideshow.unbind('cbox_complete cbox_load click');
		clearInline();
		$overlay.css({ cursor: 'auto' }).fadeOut('fast').unbind('click', $.fn.colorbox.close);
		$().unbind('keydown', cbox_key);

		if ($.browser.msie && $.browser.version < 7) {
			$('select').css({ 'visibility': 'inherit' });
			$window.unbind('resize scroll', IE6Overlay);
		}

		$modalContent.children().hide();

		$modal
		.stop(true, false)
		.removeClass()
		.fadeOut('fast', function() {
			$loaded.remove();
			$modal.removeData('open').css({ 'opacity': 1 });
			$.event.trigger('cbox_closed');
		});

		$('.msie #cboxIframe').css("display", "none"); // iframe videos (wmv only) don't stop playing when colorbox is closed.
		$('.msie #cboxIframe').remove(); // this generally works to force the video to stop playing
	};

	/*
	ColorBox Default Settings.
		
	The colorbox() function takes one argument, an object of key/value pairs, that are used to initialize the modal.
		
	Please do not change these settings here, instead overwrite these settings when attaching the colorbox() event to your anchors.
	Example (Global)	: $.fn.colorbox.settings.transition = "fade"; //changes the transition to fade for all colorBox() events proceeding it's declaration.
	Example (Specific)	: $("a[href='http://www.google.com']").colorbox({width:"90%", height:"450px", iframe:true});
		
	See http://colorpowered.com/colorbox for details.
	*/
	$.fn.colorbox.settings = {
		transition: "elastic",
		speed: 600,
		width: false,
		height: false,
		initialWidth: "400",
		initialHeight: "400",
		maxWidth: "900px",
		maxHeight: "95%",
		resize: true,
		inline: false,
		iframe: false,
		photo: false,
		href: false,
		initialHref: false,
		title: false,
		rel: false,
		opacity: 0.50,
		preloading: true,
		current: "image {current} of {total}",
		previous: "previous",
		next: "next",
		close: "close",
		open: false,
		overlayClose: true,
		slideshow: false,
		slideshowAuto: true,
		slideshowSpeed: 2500,
		slideshowStart: "start slideshow",
		slideshowStop: "stop slideshow"
	};
})(jQuery);