/*
**
**	GalleryView - jQuery Content Gallery Plugin
**	Author: 		Jack Anderson
**	Version:		2.1 (March 14, 2010)
**	
**	Please use this development script if you intend to make changes to the
**	plugin code.  For production sites, please use jquery.galleryview-2.1-pack.js.
**	
**  See README.txt for instructions on how to markup your HTML
**
**	See CHANGELOG.txt for a review of changes and LICENSE.txt for the applicable
**	licensing information.
**
*/

//Global variable to check if window is already loaded
//Used for calling GalleryView after page has loaded
var window_loaded = false;
			
(function($) {
	$.fn.galleryView = function(options) {
		var opts = $.extend($.fn.galleryView.defaults, options);

		var id;
		var iterator = 0; 	// INT - Currently visible panel/frame
		var item_count = 0; 	// INT - Total number of panels/frames
		var slide_method; 	// STRING - indicator to slide entire filmstrip or just the pointer ('strip','pointer')
		var theme_path; 		// STRING - relative path to theme directory
		var paused = false; 	// BOOLEAN - flag to indicate whether automated transitions are active

		// Element dimensions
		var gallery_width;
		var gallery_height;
		var pointer_height;
		var pointer_width;
		var strip_width;
		var strip_height;
		var wrapper_width;
		var f_frame_width;
		var f_frame_height;
		var frame_caption_size = 20;
		var gallery_padding;
		var filmstrip_margin;
		var filmstrip_orientation;


		// Arrays used to scale frames and panels
		var frame_img_scale = {};
		var panel_img_scale = {};
		var img_h = {};
		var img_w = {};

		// Flag indicating whether to scale panel images
		var scale_panel_images = true;

		var panel_nav_displayed = false;

		// Define jQuery objects for reuse
		var j_gallery;
		var j_filmstrip;
		var j_frames;
		var j_frame_img_wrappers;
		var j_panels;
		var j_pointer;


		/*
		**	Plugin Functions
		*/

		/*
		**	showItem(int)
		**		Transition from current frame to frame i (1-based index)
		*/
		function showItem(i) {
			// Disable next/prev buttons until transition is complete
			// This prevents overlapping of animations
			$('.nav-next-overlay', j_gallery).unbind('click');
			$('.nav-prev-overlay', j_gallery).unbind('click');
			$('.nav-next', j_gallery).unbind('click');
			$('.nav-prev', j_gallery).unbind('click');
			j_frames.unbind('click');

			if (opts.show_filmstrip) {
				// Fade out all frames
				j_frames.removeClass('current').find('img').stop().animate({
					'opacity': opts.frame_opacity
				}, opts.transition_speed);
				// Fade in target frame
				j_frames.eq(i).addClass('current').find('img').stop().animate({
					'opacity': 1.0
				}, opts.transition_speed);
			}

			//If necessary, fade out all panels while fading in target panel
			if (opts.show_panels && opts.fade_panels) {
				j_panels.fadeOut(opts.transition_speed).eq(i % item_count).fadeIn(opts.transition_speed, function() {
					//If no filmstrip exists, re-bind click events to navigation buttons
					if (!opts.show_filmstrip) {
						$('.nav-prev-overlay', j_gallery).click(showPrevItem);
						$('.nav-next-overlay', j_gallery).click(showNextItem);
						$('.nav-prev', j_gallery).click(showPrevItem);
						$('.nav-next', j_gallery).click(showNextItem);
					}
				});
			}

			// If gallery has a filmstrip, handle animation of frames
			if (opts.show_filmstrip) {
				// Slide either pointer or filmstrip, depending on transition method
				if (slide_method == 'strip') {
					// Stop filmstrip if it's currently in motion
					j_filmstrip.stop();
					var distance;
					var diststr;
					if (filmstrip_orientation == 'horizontal') {
						// Determine distance between pointer (eventual destination) and target frame
						distance = getPos(j_frames[i]).left - (getPos(j_pointer[0]).left + (pointer_width / 2) - (f_frame_width / 2));
						diststr = (distance >= 0 ? '-=' : '+=') + Math.abs(distance) + 'px';

						// Animate filmstrip and slide target frame under pointer
						j_filmstrip.animate({
							'left': diststr
						}, opts.transition_speed, opts.easing, function() {
							var old_i = i;
							// After transition is complete, shift filmstrip so that a sufficient number of frames
							// remain on either side of the visible filmstrip
							//							if (i > item_count) {
							//								i = i % item_count;
							//								iterator = i;
							//$$::
							//j_filmstrip.css('left', '-' + (((f_frame_width + opts.frame_gap) * i) - (document.getElementById('gallery').clientWidth / 2)) + 'px');
							//								j_filmstrip.css('left', '-' + (document.getElementById('gallery').clientWidth / 2) + 'px');
							//							} else if (i <= (item_count - strip_size)) {
							//								i = (i % item_count) + item_count;
							//								iterator = i;
							//j_filmstrip.css('left', '-' + (((f_frame_width + opts.frame_gap) * i) - (document.getElementById('gallery').clientWidth / 2)) + 'px');
							//								j_filmstrip.css('left', '-' + (document.getElementById('gallery').clientWidth / 2) + 'px');
							//							}

							// If the target frame has changed due to filmstrip shifting,
							// make sure new target frame has 'current' class and correct size/opacity settings
							if (old_i != i) {
								j_frames.eq(old_i).removeClass('current').find('img').css({
									'opacity': opts.frame_opacity
								});
								j_frames.eq(i).addClass('current').find('img').css({
									'opacity': 1.0
								});
							}
							// If panels are not set to fade in/out, simply hide all panels and show the target panel
							if (!opts.fade_panels) {
								j_panels.hide().eq(i % item_count).show();
							}

							//$$::
							j_pointer.css('left', (document.getElementById('gallery').clientWidth / 2) + 'px');

							// Once animation is complete, re-bind click events to navigation buttons
							$('.nav-prev-overlay', j_gallery).click(showPrevItem);
							$('.nav-next-overlay', j_gallery).click(showNextItem);
							$('.nav-prev', j_gallery).click(showPrevItem);
							$('.nav-next', j_gallery).click(showNextItem);
							enableFrameClicking();
						});
					} else { // filmstrip_orientation == 'vertical'
						//Determine distance between pointer (eventual destination) and target frame
						distance = getPos(j_frames[i]).top - (getPos(j_pointer[0]).top + (pointer_height) - (f_frame_height / 2));
						diststr = (distance >= 0 ? '-=' : '+=') + Math.abs(distance) + 'px';

						// Animate filmstrip and slide target frame under pointer
						j_filmstrip.animate({
							'top': diststr
						}, opts.transition_speed, opts.easing, function() {
							// After transition is complete, shift filmstrip so that a sufficient number of frames
							// remain on either side of the visible filmstrip
							var old_i = i;
							if (i > item_count) {
								i = i % item_count;
								iterator = i;
								j_filmstrip.css('top', '-' + ((f_frame_height + opts.frame_gap) * i) + 'px');
							} else if (i <= (item_count - strip_size)) {
								i = (i % item_count) + item_count;
								iterator = i;
								j_filmstrip.css('top', '-' + ((f_frame_height + opts.frame_gap) * i) + 'px');
							}
							//If the target frame has changed due to filmstrip shifting,
							//Make sure new target frame has 'current' class and correct size/opacity settings
							if (old_i != i) {
								j_frames.eq(old_i).removeClass('current').find('img').css({
									'opacity': opts.frame_opacity
								});
								j_frames.eq(i).addClass('current').find('img').css({
									'opacity': 1.0
								});
							}
							// If panels are not set to fade in/out, simply hide all panels and show the target panel
							if (!opts.fade_panels) {
								j_panels.hide().eq(i % item_count).show();
							}

							// Once animation is complete, re-bind click events to navigation buttons
							$('.nav-prev-overlay', j_gallery).click(showPrevItem);
							$('.nav-next-overlay', j_gallery).click(showNextItem);
							$('.nav-prev', j_gallery).click(showPrevItem);
							$('.nav-next', j_gallery).click(showNextItem);
							enableFrameClicking();
						});
					}
				} else if (slide_method == 'pointer') {
					// Stop pointer if it's currently in motion
					j_pointer.stop();
					// Get screen position of target frame
					var pos = getPos(j_frames[i]);

					if (filmstrip_orientation == 'horizontal') {
						// Slide the pointer over the target frame
						j_pointer.animate({
							'left': (pos.left + (f_frame_width / 2) - (pointer_width / 2) + 'px')
						}, opts.transition_speed, opts.easing, function() {
							if (!opts.fade_panels) {
								j_panels.hide().eq(i % item_count).show();
							}
							$('.nav-prev-overlay', j_gallery).click(showPrevItem);
							$('.nav-next-overlay', j_gallery).click(showNextItem);
							$('.nav-prev', j_gallery).click(showPrevItem);
							$('.nav-next', j_gallery).click(showNextItem);
							enableFrameClicking();
						});
					} else {
						// Slide the pointer over the target frame
						j_pointer.animate({
							'top': (pos.top + (f_frame_height / 2) - (pointer_height) + 'px')
						}, opts.transition_speed, opts.easing, function() {
							if (!opts.fade_panels) {
								j_panels.hide().eq(i % item_count).show();
							}
							$('.nav-prev-overlay', j_gallery).click(showPrevItem);
							$('.nav-next-overlay', j_gallery).click(showNextItem);
							$('.nav-prev', j_gallery).click(showPrevItem);
							$('.nav-next', j_gallery).click(showNextItem);
							enableFrameClicking();
						});
					}
				}

			}
		};

		/*
		**	extraWidth(jQuery element)
		**		Return the combined width of the border and padding to the elements left and right.
		**		If the border is non-numerical, assume zero (not ideal, will fix later)
		**		RETURNS - int
		*/
		function extraWidth(el) {
			if (!el) { return 0; }
			if (el.length == 0) { return 0; }
			el = el.eq(0);
			var ew = 0;
			ew += getInt(el.css('paddingLeft'));
			ew += getInt(el.css('paddingRight'));
			ew += getInt(el.css('borderLeftWidth'));
			ew += getInt(el.css('borderRightWidth'));
			return ew;
		};

		/*
		**	extraHeight(jQuery element)
		**		Return the combined height of the border and padding above and below the element
		**		If the border is non-numerical, assume zero (not ideal, will fix later)
		**		RETURN - int
		*/
		function extraHeight(el) {
			if (!el) { return 0; }
			if (el.length == 0) { return 0; }
			el = el.eq(0);
			var eh = 0;
			eh += getInt(el.css('paddingTop'));
			eh += getInt(el.css('paddingBottom'));
			eh += getInt(el.css('borderTopWidth'));
			eh += getInt(el.css('borderBottomWidth'));
			return eh;
		};

		/*
		**	showNextItem()
		**		Transition from current frame to next frame
		*/
		function showNextItem() {

			// Cancel any transition timers until we have completed this function
			$(document).stopTime("transition");
			if (++iterator == j_frames.length) { iterator = 0; }
			// We've already written the code to transition to an arbitrary panel/frame, so use it
			showItem(iterator);
			// If automated transitions haven't been cancelled by an option or paused on hover, re-enable them
			if (!paused) {
				$(document).everyTime(opts.transition_interval, "transition", function() {
					showNextItem();
				});
			}
		};

		/*
		**	showPrevItem()
		**		Transition from current frame to previous frame
		*/
		function showPrevItem() {
			// Cancel any transition timers until we have completed this function
			$(document).stopTime("transition");
			if (--iterator < 0) { iterator = item_count - 1; }
			// We've already written the code to transition to an arbitrary panel/frame, so use it
			showItem(iterator);
			// If automated transitions haven't been cancelled by an option or paused on hover, re-enable them
			if (!paused) {
				$(document).everyTime(opts.transition_interval, "transition", function() {
					showNextItem();
				});
			}
		};

		/*
		**	getPos(jQuery element
		**		Calculate position of an element relative to top/left corner of gallery
		**		If the gallery bounding box itself is passed to the function, calculate position of gallery relative to top/left corner of browser window
		** 		RETURNS - JSON {left: int, top: int}
		*/
		function getPos(el) {
			var left = 0, top = 0;
			var el_id = el.id;
			if (el.offsetParent) {
				do {
					left += el.offsetLeft;
					top += el.offsetTop;
				} while (el = el.offsetParent);
			}
			//If we want the position of the gallery itself, return it
			if (el_id == id) { return { 'left': left, 'top': top }; }
			//Otherwise, get position of element relative to gallery
			else {
				var gPos = getPos(j_gallery[0]);
				var gLeft = gPos.left;
				var gTop = gPos.top;

				return { 'left': left - gLeft, 'top': top - gTop };
			}
		};

		/*
		**	enableFrameClicking()
		**		Add an onclick event handler to each frame
		**		Exception: if a frame has an anchor tag, do not add an onlick handler
		*/
		function enableFrameClicking() {
			j_frames.each(function(i) {
				if ($('a', this).length == 0) {
					$(this).click(function() {
						// Prevent transitioning to the current frame (unnecessary)
						if (iterator != i) {
							$(document).stopTime("transition");
							showItem(i);
							iterator = i;
							if (!paused) {
								$(document).everyTime(opts.transition_interval, "transition", function() {
									showNextItem();
								});
							}
						}
					});
				}
			});
		};

		/*
		**	buildPanels()
		**		Construct gallery panels from <div class="panel"> elements
		**		NOTE - These DIVs are generated automatically from the content of the UL passed to the plugin
		*/
		function buildPanels() {
			// If panel overlay content exists, add the necessary overlay background DIV
			// The overlay content and background are separate elements so the background's opacity isn't inherited by the content
			j_panels.each(function(i) {
				if ($('.panel-overlay', this).length > 0) {
					$(this).append('<div class="overlay-background"></div>');
				}
			});
			// If there is no filmstrip in this gallery, add navigation buttons to the panel itself
			if (!opts.show_filmstrip) {
				$('<img />').addClass('nav-next').attr('src', theme_path + opts.nav_theme + '/next.gif').appendTo(j_gallery).css({
					'position': 'absolute',
					'zIndex': '1100',
					'cursor': 'pointer',
					'top': ((opts.panel_height - 22) / 2) + gallery_padding + 'px',
					'right': '10px',
					'display': 'none'
				}).click(showNextItem);
				$('<img />').addClass('nav-prev').attr('src', theme_path + opts.nav_theme + '/prev.gif').appendTo(j_gallery).css({
					'position': 'absolute',
					'zIndex': '1100',
					'cursor': 'pointer',
					'top': ((opts.panel_height - 22) / 2) + gallery_padding + 'px',
					'left': '10px',
					'display': 'none'
				}).click(showPrevItem);

				$('<img />').addClass('nav-next-overlay').attr('src', theme_path + opts.nav_theme + '/panel-nav-next.gif').appendTo(j_gallery).css({
					'position': 'absolute',
					'zIndex': '1099',
					'top': ((opts.panel_height - 22) / 2) + gallery_padding - 10 + 'px',
					'right': '0',
					'display': 'none',
					'cursor': 'pointer',
					'opacity': 0.75
				}).click(showNextItem);

				$('<img />').addClass('nav-prev-overlay').attr('src', theme_path + opts.nav_theme + '/panel-nav-prev.gif').appendTo(j_gallery).css({
					'position': 'absolute',
					'zIndex': '1099',
					'top': ((opts.panel_height - 22) / 2) + gallery_padding - 10 + 'px',
					'left': '0',
					'display': 'none',
					'cursor': 'pointer',
					'opacity': 0.75
				}).click(showPrevItem);
			}
			// Set the height and width of each panel, and position it appropriately within the gallery
			j_panels.each(function(i) {
				$(this).css({
					//'width': (opts.panel_width - extraWidth(j_panels)) + 'px',
					'width': '100%',
					'height': (opts.panel_height - extraHeight(j_panels)) + 'px',
					'position': 'absolute',
					'overflow': 'hidden',
					'display': 'none'
				});
				switch (opts.filmstrip_position) {
					case 'top': $(this).css({
						'top': strip_height + Math.max(gallery_padding, filmstrip_margin) + 'px',
						'left': gallery_padding + 'px'
					}); break;
					case 'left': $(this).css({
						'top': gallery_padding + 'px',
						'left': strip_width + Math.max(gallery_padding, filmstrip_margin) + 'px'
					}); break;
					default: $(this).css({ 'top': gallery_padding + 'px', 'left': gallery_padding + 'px' }); break;
				}
			});
			// Position each panel overlay within panel
			$('.panel-overlay', j_panels).css({
				'position': 'absolute',
				'zIndex': '999',
				'width': (opts.panel_width - extraWidth($('.panel-overlay', j_panels))) + 'px',
				'left': '0'
			});
			$('.overlay-background', j_panels).css({
				'position': 'absolute',
				'zIndex': '998',
				'width': opts.panel_width + 'px',
				'left': '0',
				'opacity': opts.overlay_opacity
			});
			if (opts.overlay_position == 'top') {
				$('.panel-overlay', j_panels).css('top', 0);
				$('.overlay-background', j_panels).css('top', 0);
			} else {
				$('.panel-overlay', j_panels).css('bottom', 0);
				$('.overlay-background', j_panels).css('bottom', 0);
			}

			$('.panel iframe', j_panels).css({
				'width': opts.panel_width + 'px',
				'height': opts.panel_height + 'px',
				'border': '0'
			});

			// If panel images have to be scaled to fit within frame, do so and position them accordingly
			if (scale_panel_images) {
				$('img', j_panels).each(function(i) {
					$(this).css({
						'height': panel_img_scale[i % item_count] * img_h[i % item_count],
						'width': panel_img_scale[i % item_count] * img_w[i % item_count],
						'position': 'relative',
						'top': (opts.panel_height - (panel_img_scale[i % item_count] * img_h[i % item_count])) / 2 + 'px'
						//'left': (opts.panel_width - (panel_img_scale[i % item_count] * img_w[i % item_count])) / 2 + 'px'
					});
				});
			}
		};

		/*
		**	buildFilmstrip()
		**		Construct filmstrip from <ul class="filmstrip"> element
		**		NOTE - 'filmstrip' class is automatically added to UL passed to plugin
		*/
		function buildFilmstrip() {
			// Add wrapper to filmstrip to hide extra frames
			j_filmstrip.wrap('<div class="strip_wrapper"></div>');
			if (slide_method == 'strip') {
				j_frames.clone().appendTo(j_filmstrip);
				j_frames.clone().appendTo(j_filmstrip);
				j_frames = $('li', j_filmstrip);
			}
			// If captions are enabled, add caption DIV to each frame and fill with the image titles
			if (opts.show_captions) {
				j_frames.append('<div class="caption"></div>').each(function(i) {
					$(this).find('.caption').html($(this).find('img').attr('title'));
					//$(this).find('.caption').html(i);		
				});
			}
			// Position the filmstrip within the gallery
			j_filmstrip.css({
				'listStyle': 'none',
				'margin': '0',
				'padding': '0',
				'width': strip_width + 'px',
				'position': 'absolute',
				'zIndex': '900',
				'top': (filmstrip_orientation == 'vertical' && slide_method == 'strip' ? -((f_frame_height + opts.frame_gap) * iterator) : 0) + 'px',
				'left': (filmstrip_orientation == 'horizontal' && slide_method == 'strip' ? -((f_frame_width + opts.frame_gap) * iterator) : 0) + 'px',
				'height': strip_height + 'px'
			});
			j_frames.css({
				'float': 'left',
				'position': 'relative',
				'height': f_frame_height + (opts.show_captions ? frame_caption_size : 0) + 'px',
				'width': f_frame_width + 'px',
				'zIndex': '901',
				'padding': '0',
				'cursor': 'pointer'
			});
			// Set frame margins based on user options and position of filmstrip within gallery
			switch (opts.filmstrip_position) {
				case 'top': j_frames.css({
					'marginBottom': filmstrip_margin + 'px',
					'marginRight': opts.frame_gap + 'px'
				}); break;
				case 'bottom': j_frames.css({
					'marginTop': filmstrip_margin + 'px',
					'marginRight': opts.frame_gap + 'px'
				}); break;
				case 'left': j_frames.css({
					'marginRight': filmstrip_margin + 'px',
					'marginBottom': opts.frame_gap + 'px'
				}); break;
				case 'right': j_frames.css({
					'marginLeft': filmstrip_margin + 'px',
					'marginBottom': opts.frame_gap + 'px'
				}); break;
			}
			// Apply styling to individual image wrappers. These will eventually hide overflow in the case of cropped filmstrip images
			$('.img_wrap', j_frames).each(function(i) {
				$(this).css({
					'height': Math.min(opts.frame_height, img_h[i % item_count] * frame_img_scale[i % item_count]) + 'px',
					'width': Math.min(opts.frame_width, img_w[i % item_count] * frame_img_scale[i % item_count]) + 'px',
					'position': 'relative',
					'top': (opts.show_captions && opts.filmstrip_position == 'top' ? frame_caption_size : 0) + Math.max(0, (opts.frame_height - (frame_img_scale[i % item_count] * img_h[i % item_count])) / 2) + 'px',
					'left': Math.max(0, (opts.frame_width - (frame_img_scale[i % item_count] * img_w[i % item_count])) / 2) + 'px',
					'overflow': 'hidden'
				});
			});
			// Scale each filmstrip image if necessary and position it within the image wrapper
			$('img', j_frames).each(function(i) {
				$(this).css({
					'opacity': opts.frame_opacity,
					'height': img_h[i % item_count] * frame_img_scale[i % item_count] + 'px',
					'width': img_w[i % item_count] * frame_img_scale[i % item_count] + 'px',
					'position': 'relative',
					'top': Math.min(0, (opts.frame_height - (frame_img_scale[i % item_count] * img_h[i % item_count])) / 2) + 'px',
					'left': Math.min(0, (opts.frame_width - (frame_img_scale[i % item_count] * img_w[i % item_count])) / 2) + 'px'

				}).mouseover(function() {
					$(this).stop().animate({ 'opacity': 1.0 }, 300);
				}).mouseout(function() {
					//Don't fade out current frame on mouseout
					if (!$(this).parent().parent().hasClass('current')) { $(this).stop().animate({ 'opacity': opts.frame_opacity }, 300); }
				});
			});
			// Set overflow of filmstrip wrapper to hidden so as to hide frames that don't fit within the gallery
			$('.strip_wrapper', j_gallery).css({
			//'position': 'absolute',
			'position': 'relative',
				'overflow': 'hidden'
			});
			// Position filmstrip within gallery based on user options
			if (filmstrip_orientation == 'horizontal') {
				$('.strip_wrapper', j_gallery).css({
				'top': (opts.filmstrip_position == 'top' ? Math.max(gallery_padding, filmstrip_margin) + 'px' : opts.panel_height + gallery_padding + 'px'),
					//$$::
					//'left': ((gallery_width - wrapper_width) / 2) + gallery_padding + 'px',
					'left': '50px',
					//'width': wrapper_width + 'px',
					//'width': (document.getElementById('gallery').clientWidth -100) + 'px',
					'width': 'auto',
					'margin-right': '100px',
					'height': strip_height + 'px'
				});
			} else {
				$('.strip_wrapper', j_gallery).css({
					'left': (opts.filmstrip_position == 'left' ? Math.max(gallery_padding, filmstrip_margin) + 'px' : opts.panel_width + gallery_padding + 'px'),
					'top': Math.max(gallery_padding, opts.frame_gap) + 'px',
					'width': strip_width + 'px',
					'height': wrapper_height + 'px'
				});
			}
			// Style frame captions
			$('.caption', j_gallery).css({
				'position': 'absolute',
				'top': (opts.filmstrip_position == 'bottom' ? f_frame_height : 0) + 'px',
				'left': '0',
				'margin': '0',
				'width': f_frame_width + 'px',
				'padding': '0',
				'height': frame_caption_size + 'px',
				'overflow': 'hidden',
				'lineHeight': frame_caption_size + 'px'
			});
			// Create pointer for current frame
			var pointer = $('<div></div>');
			pointer.addClass('pointer').appendTo(j_gallery).css({
				'position': 'absolute',
				'zIndex': '1000',
				'width': '0px',
				'fontSize': '0px',
				'lineHeight': '0%',
				'borderTopWidth': pointer_height + 'px',
				'borderRightWidth': (pointer_width / 2) + 'px',
				'borderBottomWidth': pointer_height + 'px',
				'borderLeftWidth': (pointer_width / 2) + 'px',
				'borderStyle': 'solid'
			});

			// For IE6, use predefined color string in place of transparent (IE6 bug fix, see stylesheet)
			var transColor = $.browser.msie && $.browser.version.substr(0, 1) == '6' ? 'pink' : 'transparent';

			// If there are no panels, make pointer transparent (nothing to point to)
			// This is not the optimal solution, but we need the pointer to exist as a reference for transition animations
			if (!opts.show_panels) { pointer.css('borderColor', transColor); }

			switch (opts.filmstrip_position) {
				case 'top': pointer.css({
					'bottom': (opts.panel_height - (pointer_height * 2) + gallery_padding + filmstrip_margin) + 'px',
					//$$::
					//'left': ((gallery_width - wrapper_width) / 2) + (slide_method == 'strip' ? (document.getElementById('gallery').clientWidth / 3) : ((f_frame_width + opts.frame_gap) * iterator)) + ((f_frame_width / 2) - (pointer_width / 2)) + gallery_padding + 'px',
					'left': (document.getElementById('gallery').clientWidth / 2) + 'px',
					'borderBottomColor': transColor,
					'borderRightColor': transColor,
					'borderLeftColor': transColor
				}); break;
				case 'bottom': pointer.css({
					'top': (opts.panel_height - (pointer_height * 2) + gallery_padding + filmstrip_margin) + 'px',
					'left': ((gallery_width - wrapper_width) / 2) + (slide_method == 'strip' ? 0 : ((f_frame_width + opts.frame_gap) * iterator)) + ((f_frame_width / 2) - (pointer_width / 2)) + gallery_padding + 'px',
					'borderTopColor': transColor,
					'borderRightColor': transColor,
					'borderLeftColor': transColor
				}); break;
				case 'left': pointer.css({
					'right': (opts.panel_width - pointer_width + gallery_padding + filmstrip_margin) + 'px',
					'top': (f_frame_height / 2) - (pointer_height) + (slide_method == 'strip' ? 0 : ((f_frame_height + opts.frame_gap) * iterator)) + gallery_padding + 'px',
					'borderBottomColor': transColor,
					'borderRightColor': transColor,
					'borderTopColor': transColor
				}); break;
				case 'right': pointer.css({
					'left': (opts.panel_width - pointer_width + gallery_padding + filmstrip_margin) + 'px',
					'top': (f_frame_height / 2) - (pointer_height) + (slide_method == 'strip' ? 0 : ((f_frame_height + opts.frame_gap) * iterator)) + gallery_padding + 'px',
					'borderBottomColor': transColor,
					'borderLeftColor': transColor,
					'borderTopColor': transColor
				}); break;
			}

			j_pointer = $('.pointer', j_gallery);

			// Add navigation buttons
			var navNext = $('<img />');
			navNext.addClass('nav-next').attr('src', theme_path + opts.nav_theme + '/next.gif').appendTo(j_gallery).css({
				'position': 'absolute',
				'cursor': 'pointer'
			}).click(showNextItem);
			var navPrev = $('<img />');
			navPrev.addClass('nav-prev').attr('src', theme_path + opts.nav_theme + '/prev.gif').appendTo(j_gallery).css({
				'position': 'absolute',
				'cursor': 'pointer'
			}).click(showPrevItem);
			if (filmstrip_orientation == 'horizontal') {
				navNext.css({
					'top': (opts.filmstrip_position == 'top' ? Math.max(gallery_padding, filmstrip_margin) : opts.panel_height + filmstrip_margin + gallery_padding) + ((f_frame_height - 22) / 2) + 'px',
					//'right': ((gallery_width + (gallery_padding * 2)) / 2) - (wrapper_width / 2) - opts.frame_gap - 22 + 'px'
					'right': '20px'
				});
				navPrev.css({
					'top': (opts.filmstrip_position == 'top' ? Math.max(gallery_padding, filmstrip_margin) : opts.panel_height + filmstrip_margin + gallery_padding) + ((f_frame_height - 22) / 2) + 'px',
					//'left': ((gallery_width + (gallery_padding * 2)) / 2) - (wrapper_width / 2) - opts.frame_gap - 22 + 'px'
					'left': '20px'
				});
			} else {
				navNext.css({
					'left': (opts.filmstrip_position == 'left' ? Math.max(gallery_padding, filmstrip_margin) : opts.panel_width + filmstrip_margin + gallery_padding) + ((f_frame_width - 22) / 2) + 13 + 'px',
					'top': wrapper_height + (Math.max(gallery_padding, opts.frame_gap) * 2) + 'px'
				});
				navPrev.css({
					'left': (opts.filmstrip_position == 'left' ? Math.max(gallery_padding, filmstrip_margin) : opts.panel_width + filmstrip_margin + gallery_padding) + ((f_frame_width - 22) / 2) - 13 + 'px',
					'top': wrapper_height + (Math.max(gallery_padding, opts.frame_gap) * 2) + 'px'
				});
			}
		};

		/*
		**	mouseIsOverGallery(int,int)
		**		Check to see if mouse coordinates lie within borders of gallery
		**		This is a more reliable method than using the mouseover event
		**		RETURN - boolean
		*/
		function mouseIsOverGallery(x, y) {
			var pos = getPos(j_gallery[0]);
			var top = pos.top;
			var left = pos.left;
			return x > left && x < left + gallery_width + (filmstrip_orientation == 'horizontal' ? (gallery_padding * 2) : gallery_padding + Math.max(gallery_padding, filmstrip_margin)) && y > top && y < top + gallery_height + (filmstrip_orientation == 'vertical' ? (gallery_padding * 2) : gallery_padding + Math.max(gallery_padding, filmstrip_margin));
		};

		/*
		**	getInt(string)
		**		Parse a string to obtain the integer value contained
		**		If the string contains no number, return zero
		**		RETURN - int
		*/
		function getInt(i) {
			i = parseInt(i, 10);
			if (isNaN(i)) { i = 0; }
			return i;
		};

		/*
		**	buildGallery()
		**		Construct HTML and CSS for the gallery, based on user options
		*/
		function buildGallery() {
			var gallery_images = opts.show_filmstrip ? $('img', j_frames) : $('img', j_panels);
			// For each image in the gallery, add its original dimensions and scaled dimensions to the appropriate arrays for later reference
			gallery_images.each(function(i) {
				img_h[i] = this.height;
				img_w[i] = this.width;
				if (opts.frame_scale == 'nocrop') {
					frame_img_scale[i] = Math.min(opts.frame_height / img_h[i], opts.frame_width / img_w[i]);
				} else {
					frame_img_scale[i] = Math.max(opts.frame_height / img_h[i], opts.frame_width / img_w[i]);
				}

				if (opts.panel_scale == 'nocrop') {
					panel_img_scale[i] = Math.min(opts.panel_height / img_h[i], opts.panel_width / img_w[i]);
				} else {
					panel_img_scale[i] = Math.max(opts.panel_height / img_h[i], opts.panel_width / img_w[i]);
				}
			});

			// Size gallery based on position of filmstrip
			j_gallery.css({
				'position': 'relative',
				'width': gallery_width + (filmstrip_orientation == 'horizontal' ? (gallery_padding * 2) : gallery_padding + Math.max(gallery_padding, filmstrip_margin)) + 'px',
				'height': gallery_height + (filmstrip_orientation == 'vertical' ? (gallery_padding * 2) : gallery_padding + Math.max(gallery_padding, filmstrip_margin)) + 'px'
			});

			// Build filmstrip if necessary
			if (opts.show_filmstrip) {
				buildFilmstrip();
				enableFrameClicking();
			}
			// Build panels if necessary
			if (opts.show_panels) {
				buildPanels();
			}

			// If user opts to pause on hover, or no filmstrip exists, add some mouseover functionality
			if (opts.pause_on_hover || (opts.show_panels && !opts.show_filmstrip)) {
				$(document).mousemove(function(e) {
					if (mouseIsOverGallery(e.pageX, e.pageY)) {
						// If the user opts to pause on hover, kill automated transitions
						if (opts.pause_on_hover) {
							if (!paused) {
								// Pause slideshow in 500ms
								$(document).oneTime(500, "animation_pause", function() {
									$(document).stopTime("transition");
									paused = true;
								});
							}
						}
						// Display panel navigation on mouseover
						if (opts.show_panels && !opts.show_filmstrip && !panel_nav_displayed) {
							$('.nav-next-overlay').fadeIn('fast');
							$('.nav-prev-overlay').fadeIn('fast');
							$('.nav-next', j_gallery).fadeIn('fast');
							$('.nav-prev', j_gallery).fadeIn('fast');
							panel_nav_displayed = true;
						}
					} else {
						// If the mouse leaves the gallery, stop the pause timer and restart automated transitions
						if (opts.pause_on_hover) {
							$(document).stopTime("animation_pause");
							if (paused) {
								$(document).everyTime(opts.transition_interval, "transition", function() {
									showNextItem();
								});
								paused = false;
							}
						}
						// Hide panel navigation
						if (opts.show_panels && !opts.show_filmstrip && panel_nav_displayed) {
							$('.nav-next-overlay').fadeOut('fast');
							$('.nav-prev-overlay').fadeOut('fast');
							$('.nav-next', j_gallery).fadeOut('fast');
							$('.nav-prev', j_gallery).fadeOut('fast');
							panel_nav_displayed = false;
						}
					}
				});
			}

			// Hide loading box and display gallery
			j_filmstrip.css('visibility', 'visible');
			j_gallery.css('visibility', 'visible');
			$('.loader', j_gallery).fadeOut('1000', function() {
				// Show the 'first' panel (set by opts.start_frame)
				showItem(iterator);
				// If we have more than one item, begin automated transitions
				if (item_count > 1) {
					$(document).everyTime(opts.transition_interval, "transition", function() {
						showNextItem();
					});
				}
			});
		};

		/*
		**	MAIN PLUGIN CODE
		*/
		return this.each(function() {
			//Hide the unstyled UL until we've created the gallery
			$(this).css('visibility', 'hidden');

			// Wrap UL in DIV and transfer ID to container DIV
			$(this).wrap("<div></div>");
			j_gallery = $(this).parent();
			j_gallery.css('visibility', 'hidden').attr('id', $(this).attr('id')).addClass('gallery');

			// Assign filmstrip class to UL
			$(this).removeAttr('id').addClass('filmstrip');

			// If the transition or pause timers exist for any reason, stop them now.
			$(document).stopTime("transition");
			$(document).stopTime("animation_pause");

			// Save the id of the UL passed to the plugin
			id = j_gallery.attr('id');

			// If the UL does not contain any <div class="panel-content"> elements, we will scale the UL images to fill the panels
			scale_panel_images = $('.panel-content', j_gallery).length == 0;

			// Define dimensions of pointer <div>
			pointer_height = opts.pointer_size;
			pointer_width = opts.pointer_size * 2;

			// Determine filmstrip orientation (vertical or horizontal)
			// Do not show captions on vertical filmstrips (override user set option)
			filmstrip_orientation = (opts.filmstrip_position == 'top' || opts.filmstrip_position == 'bottom' ? 'horizontal' : 'vertical');
			if (filmstrip_orientation == 'vertical') { opts.show_captions = false; }

			// Determine path between current page and plugin images
			// Scan script tags and look for path to GalleryView plugin
			$('script').each(function(i) {
				var s = $(this);
				if (s.attr('src') && s.attr('src').match(/jquery\.galleryview/)) {
					loader_path = s.attr('src').split('jquery.galleryview')[0];
					theme_path = s.attr('src').split('jquery.galleryview')[0] + 'themes/';
				}
			});

			// Assign elements to variables to minimize calls to jQuery
			j_filmstrip = $('.filmstrip', j_gallery);
			j_frames = $('li', j_filmstrip);
			j_frames.addClass('frame');

			// If the user wants panels, generate them using the filmstrip images
			if (opts.show_panels) {
				for (i = j_frames.length - 1; i >= 0; i--) {
					if (j_frames.eq(i).find('.panel-content').length > 0) {
						j_frames.eq(i).find('.panel-content').remove().prependTo(j_gallery).addClass('panel');
					} else {
						p = $('<div>');
						p.addClass('panel');
						im = $('<img />');
						im.attr('src', j_frames.eq(i).find('img').eq(0).attr('src')).appendTo(p);
						p.prependTo(j_gallery);
						j_frames.eq(i).find('.panel-overlay').remove().appendTo(p);
					}
				}
			} else {
				$('.panel-overlay', j_frames).remove();
				$('.panel-content', j_frames).remove();
			}

			// If the user doesn't want a filmstrip, delete it
			if (!opts.show_filmstrip) { j_filmstrip.remove(); }
			else {
				// Wrap the frame images (and links, if applicable) in container divs
				// These divs will handle cropping and zooming of the images
				j_frames.each(function(i) {
					if ($(this).find('a').length > 0) {
						$(this).find('a').wrap('<div class="img_wrap"></div>');
					} else {
						$(this).find('img').wrap('<div class="img_wrap"></div>');
					}
				});
				j_frame_img_wrappers = $('.img_wrap', j_frames);
			}

			j_panels = $('.panel', j_gallery);

			if (!opts.show_panels) {
				opts.panel_height = 0;
				opts.panel_width = 0;
			}


			// Determine final frame dimensions, accounting for user-added padding and border
			f_frame_width = opts.frame_width + extraWidth(j_frame_img_wrappers);
			f_frame_height = opts.frame_height + extraHeight(j_frame_img_wrappers);

			// Number of frames in filmstrip
			item_count = opts.show_panels ? j_panels.length : j_frames.length;

			// Number of frames that can display within the gallery block
			// 64 = width of block for navigation button * 2 + 20
			if (filmstrip_orientation == 'horizontal') {
				strip_size = opts.show_panels ? Math.floor((opts.panel_width - ((opts.frame_gap + 22) * 2)) / (f_frame_width + opts.frame_gap)) : Math.min(item_count, opts.filmstrip_size);
			} else {
				strip_size = opts.show_panels ? Math.floor((opts.panel_height - (opts.frame_gap + 22)) / (f_frame_height + opts.frame_gap)) : Math.min(item_count, opts.filmstrip_size);
			}

			// Determine animation method for filmstrip
			// If more items than strip size, slide filmstrip
			// Otherwise, slide pointer
			if (strip_size >= item_count) {
				slide_method = 'pointer';
				strip_size = item_count;
			}
			else { slide_method = 'strip'; }

			iterator = (strip_size < item_count ? item_count : 0) + opts.start_frame - 1;

			// Determine dimensions of various gallery elements
			filmstrip_margin = (opts.show_panels ? getInt(j_filmstrip.css('marginTop')) : 0);
			j_filmstrip.css('margin', '0px');

			if (filmstrip_orientation == 'horizontal') {
				// Width of gallery block
				gallery_width = opts.show_panels ? opts.panel_width : (strip_size * (f_frame_width + opts.frame_gap)) + 44 + opts.frame_gap;

				// Height of gallery block = screen + filmstrip + captions (optional)
				gallery_height = (opts.show_panels ? opts.panel_height : 0) + (opts.show_filmstrip ? f_frame_height + filmstrip_margin + (opts.show_captions ? frame_caption_size : 0) : 0);
			} else {
				// Width of gallery block
				gallery_height = opts.show_panels ? opts.panel_height : (strip_size * (f_frame_height + opts.frame_gap)) + 22;

				// Height of gallery block = screen + filmstrip + captions (optional)
				gallery_width = (opts.show_panels ? opts.panel_width : 0) + (opts.show_filmstrip ? f_frame_width + filmstrip_margin : 0);
			}

			// Width of filmstrip
			if (filmstrip_orientation == 'horizontal') {
				if (slide_method == 'pointer') { strip_width = (f_frame_width * item_count) + (opts.frame_gap * (item_count)); }
				else { strip_width = (f_frame_width * item_count * 3) + (opts.frame_gap * (item_count * 3)); }
			} else {
				strip_width = (f_frame_width + filmstrip_margin);
			}
			if (filmstrip_orientation == 'horizontal') {
				strip_height = (f_frame_height + filmstrip_margin + (opts.show_captions ? frame_caption_size : 0));
			} else {
				if (slide_method == 'pointer') { strip_height = (f_frame_height * item_count + opts.frame_gap * (item_count)); }
				else { strip_height = (f_frame_height * item_count * 3) + (opts.frame_gap * (item_count * 3)); }
			}

			// Width of filmstrip wrapper (to hide overflow)
			wrapper_width = ((strip_size * f_frame_width) + ((strip_size - 1) * opts.frame_gap));
			wrapper_height = ((strip_size * f_frame_height) + ((strip_size - 1) * opts.frame_gap));


			gallery_padding = getInt(j_gallery.css('paddingTop'));
			j_gallery.css('padding', '0px');

			// Place loading box over gallery until page loads
			galleryPos = getPos(j_gallery[0]);
			$('<div>').addClass('loader').css({
				'position': 'absolute',
				'zIndex': '32666',
				'opacity': 1,
				'top': '0px',
				'left': '0px',
				'width': gallery_width + (filmstrip_orientation == 'horizontal' ? (gallery_padding * 2) : gallery_padding + Math.max(gallery_padding, filmstrip_margin)) + 'px',
				'height': gallery_height + (filmstrip_orientation == 'vertical' ? (gallery_padding * 2) : gallery_padding + Math.max(gallery_padding, filmstrip_margin)) + 'px'
			}).appendTo(j_gallery);

			// Don't call the buildGallery function until the window is loaded
			// NOTE - lazy way of waiting until all images are loaded, may find a better solution for future versions
			if (!window_loaded) {
				$(window).load(function() {
					window_loaded = true;
					buildGallery();
				});
			} else {
				buildGallery();
			}

		});
	};

	/*
	**	GalleryView options and default values
	*/
	$.fn.galleryView.defaults = {

		show_panels: true, 				//BOOLEAN - flag to show or hide panel portion of gallery
		show_filmstrip: true, 			//BOOLEAN - flag to show or hide filmstrip portion of gallery

		panel_width: 600, 				//INT - width of gallery panel (in pixels)
		panel_height: 400, 				//INT - height of gallery panel (in pixels)
		frame_width: 60, 				//INT - width of filmstrip frames (in pixels)
		frame_height: 40, 				//INT - width of filmstrip frames (in pixels)

		start_frame: 1, 					//INT - index of panel/frame to show first when gallery loads
		filmstrip_size: 3,
		transition_speed: 800, 			//INT - duration of panel/frame transition (in milliseconds)
		transition_interval: 4000, 		//INT - delay between panel/frame transitions (in milliseconds)

		overlay_opacity: 0.7, 			//FLOAT - transparency for panel overlay (1.0 = opaque, 0.0 = transparent)
		frame_opacity: 0.3, 				//FLOAT - transparency of non-active frames (1.0 = opaque, 0.0 = transparent)

		pointer_size: 8, 				//INT - Height of frame pointer (in pixels)

		nav_theme: 'dark', 				//STRING - name of navigation theme to use (folder must exist within 'themes' directory)
		easing: 'swing', 				//STRING - easing method to use for animations (jQuery provides 'swing' or 'linear', more available with jQuery UI or Easing plugin)

		filmstrip_position: 'bottom', 	//STRING - position of filmstrip within gallery (bottom, top, left, right)
		overlay_position: 'bottom', 		//STRING - position of panel overlay (bottom, top, left, right)

		panel_scale: 'nocrop', 			//STRING - cropping option for panel images (crop = scale image and fit to aspect ratio determined by panel_width and panel_height, nocrop = scale image and preserve original aspect ratio)
		frame_scale: 'crop', 			//STRING - cropping option for filmstrip images (same as above)

		frame_gap: 5, 					//INT - spacing between frames within filmstrip (in pixels)

		show_captions: false, 			//BOOLEAN - flag to show or hide frame captions
		fade_panels: true, 				//BOOLEAN - flag to fade panels during transitions or swap instantly
		pause_on_hover: false				//BOOLEAN - flag to pause slideshow when user hovers over the gallery
	};
})(jQuery);