/*
**
**	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) + '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) + '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 { // 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',
                    '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',
                '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',
                    'width': wrapper_width + 'px',
                    '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' ? 0 : ((f_frame_width + opts.frame_gap) * iterator)) + ((f_frame_width / 2) - (pointer_width / 2)) + gallery_padding + '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'
                });
                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'
                });
            } 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] + '../images/galleryviewthemes/';
                }
            });

            // 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: 100, 				//INT - width of filmstrip frames (in pixels)
        frame_height: 60, 				//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: 0, 				//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: true				//BOOLEAN - flag to pause slideshow when user hovers over the gallery
    };
})(jQuery);