/*
*       Developed by Justin Mead
*       ©2009 MeadMiracle
*		www.meadmiracle.com / meadmiracle@gmail.com
*       Version 1.0
*       Testing: IE7/Windows XP
*                Firefox/Windows XP
*       Licensed under the Creative Commons GPL http://creativecommons.org/licenses/GPL/2.0/
*
*       OPTIONS LISTING:
*           *Lheight, Lwidth            - the height and width to use for the center image (landscape)
*           *Lshrink                    - the function to use when shrinking an image to a smaller size.  must take in and return an integer value. (landscape)
*           *Lzoom                      - the function to use when enlarging an image for the zoom view.  must take in and return an integer value. (landscape)
*           *Pheight, Pwidth            - the height and width to use for the center image (portrait)
*           *Pshrink                    - the function to use when shrinking an image to a smaller size.  must take in and return an integer value. (portrait)
*           *Pzoom                      - the function to use when enlarging an image for the zoom view.  must take in and return an integer value. (portrait)
*           *defaultLayout              - the layout attribute to apply when the image has no layout attribute
*           *startClass                 - the class label of the image to place in the center slot at the start of the gallery
*           *slideSpeed                 - the animation speed of sliding. use jQuery animation speed values
*           *zoomSpeed                  - the animation speed of zooming. use jQuery animation speed values
*           *gutterWidth                - the horizontal distance between each of the images. use a pixel value
*           *captionUpPath              - the path of the image to use for the "caption up" button
*           *captionUpWidth             - the pixel width of the "caption up" image
*           *captionUpHeight            - the pixel height of the "caption up" image
*           *captionUpID                - the ID attribute to use for the "caption up" image
*           *captionDownPath            - the path of the image to use for the "caption down" button
*           *captionDownWidth           - the pixel width of the "caption down" image
*           *captionDownHeight          - the pixel height of the "caption down" image
*           *captionDownID              - the ID attribute to use for the "caption down" image
*           *captionHeight              - the function to use to determine the height of the caption. takes in an integer value (usually the height of the image to caption)
                                          and returns an integer value
*           *captionStyle               - the CSS style value to apply to the captions
*           *captionClass               - the CSS class to apply to the captions
*           *captionID                  - the ID attribute to apply to the currently active caption
*           *captionTextAttribute       - the attribute containing the text to use in captions
*           *useCaptions                - allow captions to be shown
*
*       All options have default values, and as such, are optional.  Check the 'options' JSON object below to see the defaults.
*/

(function($) {
  $.galleryUtility = {};
  $.galleryUtility.centerImage = {};
  $.galleryUtility.rightImage = {};
  $.galleryUtility.leftImage = {};
  $.galleryUtility.rightImageStorage = {};
  $.galleryUtility.leftImageStorage = {};
  $.galleryUtility.zoomImage = {};
  $.galleryUtility.gallery = {};

  $.galleryUtility.Options = {
    Lheight: 300,
    Lwidth: 400,
    Lshrink:
                        function(dimension) {
                          return dimension * 0.75;
                        },
    Lzoom:
                        function(dimension) {
                          return dimension * 2;
                        },
    Pheight: 400,
    Pwidth: 300,
    Pshrink:
                        function(dimension) {
                          return dimension * 0.75;
                        },
    Pzoom:
                        function(dimension) {
                          return dimension * 2;
                        },
    defaultLayout: 'landscape',
    startClass: 'start',
    slideSpeed: 'normal',
    zoomSpeed: 'fast',
    gutterWidth: 25,
    captionUpPath: 'Images/SlidingGallery/captionUpArrow.png',
    captionUpWidth: 24,
    captionUpHeight: 17,
    captionUpID: 'captionArrowUp',
    captionDownPath: 'Images/SlidingGallery/captionDownArrow.png',
    captionDownWidth: 24,
    captionDownHeight: 17,
    captionDownID: 'captionArrowDown',
    captionHeight:
                        function(zoomHeight) {
                          return zoomHeight * 0.1;
                        },
    captionStyle: 'background-color:white; font-weight:bold; color:black; opacity: 0.6; filter: alpha(opacity = 60); font-size: 16px; text-align:center;',
    captionClass: 'captionBox',
    captionID: 'activeCaption',
    captionTextAttribute: 'caption',
    useCaptions: false
  };

  $.fn.slidingGallery = function(options) {
    //global settings
    $.extend($.galleryUtility.Options, options);
    $.galleryUtility.gallery = $(this).css('cursor', 'pointer');
    $.galleryUtility.definePositions();
    if ($.galleryUtility.Options.useCaptions) {
      $('body').append('<img src="' + $.galleryUtility.Options.captionUpPath + '" style="width: ' + $.galleryUtility.Options.captionUpWidth + '; display: none;"' + 'id="' + $.galleryUtility.Options.captionUpID + '" />').append('<img src="' + $.galleryUtility.Options.captionDownPath + '" style="width: ' + $.galleryUtility.Options.captionDownWidth + '; display: none;"' + 'id="' + $.galleryUtility.Options.captionDownID + '" />');
      $('#' + $.galleryUtility.Options.captionUpID + ',#' + $.galleryUtility.Options.captionDownID).css('cursor', 'help');
    }

    //eliminate overflow
    $('body').css('overflow', 'hidden');

    //setup existing images
    var lastIndex = 0;
    var gallerySize = $.galleryUtility.gallery.each(function(i) {
      $(this).attr({
        'index': i,
        'prev': (i - 1),
        'next': (i + 1)
      }).css('position', 'absolute');
      if (($(this).attr('layout') !== 'portrait') && ($(this).attr('layout') !== 'landscape')) {
        $(this).attr('layout', $.galleryUtility.Options.defaultLayout);
      }
      lastIndex = i;
    }).hide().size();

    //fill in gallery with duplicates until there are at least 7
    var currIndex = 0;
    while (gallerySize < 7) {
      var $clone = $.galleryUtility.gallery.filter('[index=' + currIndex + ']').clone().attr({
        'index': lastIndex + 1,
        'prev': lastIndex,
        'next': lastIndex + 2
      }).removeClass($.galleryUtility.Options.startClass);
      $.galleryUtility.gallery.filter('[index=' + (lastIndex) + ']').after($clone);
      $.galleryUtility.gallery = $.galleryUtility.gallery.add('img[index=' + (lastIndex + 1) + ']');
      lastIndex++;
      currIndex++;
      gallerySize++;
    }
    $.galleryUtility.gallery.filter('[index=' + lastIndex + ']').attr('next', 0);
    $.galleryUtility.gallery.filter('[index=0]').attr('prev', lastIndex);

    //set images
    $.galleryUtility.setCenter($.galleryUtility.gallery.filter('.' + $.galleryUtility.Options.startClass).show());
    $.galleryUtility.setLeft($.galleryUtility.gallery.filter('[index=' + $.galleryUtility.centerImage.image.attr('prev') + ']').show());
    $.galleryUtility.setRight($.galleryUtility.gallery.filter('[index=' + $.galleryUtility.centerImage.image.attr('next') + ']').show());
    $.galleryUtility.setLeftStorage($.galleryUtility.gallery.filter('[index=' + $.galleryUtility.leftImage.image.attr('prev') + ']'));
    $.galleryUtility.setRightStorage($.galleryUtility.gallery.filter('[index=' + $.galleryUtility.rightImage.image.attr('next') + ']'));

    //bind events
    $.galleryUtility.leftImage.image.one('click', $.galleryUtility.slideRight);
    $.galleryUtility.rightImage.image.one('click', $.galleryUtility.slideLeft);
    $.galleryUtility.centerImage.image.one('click', $.galleryUtility.zoomIn);
    $(window).resize(function() {
      $.galleryUtility.definePositions();
      $.galleryUtility.setCenter($.galleryUtility.centerImage.image);
      $.galleryUtility.setLeft($.galleryUtility.leftImage.image);
      $.galleryUtility.setRight($.galleryUtility.rightImage.image);
      $.galleryUtility.setLeftStorage($.galleryUtility.leftImageStorage.image);
      $.galleryUtility.setRightStorage($.galleryUtility.rightImageStorage.image);
    });

    //return the objects (for chaining purposes)
    return $(this);
  };

  $.galleryUtility.slideRight = function() {
    var liLeft = $.galleryUtility.leftImage.left($.galleryUtility.leftImageStorage.image, $.galleryUtility.leftImage.image);
    var riLeft = $.galleryUtility.rightImage.left($.galleryUtility.leftImage.image);
    var risLeft = $.galleryUtility.rightImageStorage.left($.galleryUtility.centerImage.image);
    if ($.galleryUtility.leftImageStorage.image.attr('layout') === 'landscape') {
      $.galleryUtility.leftImageStorage.image.animate({
        'top': $.galleryUtility.leftImage.Ltop,
        'left': liLeft,
        'height': $.galleryUtility.leftImage.Lheight,
        'width': $.galleryUtility.leftImage.Lwidth,
        'opacity': 'show'
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.slideRight);
            });
    } else {
      $.galleryUtility.leftImageStorage.image.animate({
        'top': $.galleryUtility.leftImage.Ptop,
        'left': liLeft,
        'height': $.galleryUtility.leftImage.Pheight,
        'width': $.galleryUtility.leftImage.Pwidth,
        'opacity': 'show'
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.slideRight);
            });
    }
    if ($.galleryUtility.leftImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.leftImage.image.unbind().animate({
        'top': $.galleryUtility.centerImage.Ltop,
        'left': $.galleryUtility.centerImage.Lleft,
        'height': $.galleryUtility.centerImage.Lheight,
        'width': $.galleryUtility.centerImage.Lwidth
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.zoomIn);
            });
    } else {
      $.galleryUtility.leftImage.image.unbind().animate({
        'top': $.galleryUtility.centerImage.Ptop,
        'left': $.galleryUtility.centerImage.Pleft,
        'height': $.galleryUtility.centerImage.Pheight,
        'width': $.galleryUtility.centerImage.Pwidth
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.zoomIn);
            });
    }
    if ($.galleryUtility.centerImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.centerImage.image.unbind().animate({
        'top': $.galleryUtility.rightImage.Ltop,
        'left': riLeft,
        'height': $.galleryUtility.rightImage.Lheight,
        'width': $.galleryUtility.rightImage.Lwidth
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.slideLeft);
            });
    } else {
      $.galleryUtility.centerImage.image.unbind().animate({
        'top': $.galleryUtility.rightImage.Ptop,
        'left': riLeft,
        'height': $.galleryUtility.rightImage.Pheight,
        'width': $.galleryUtility.rightImage.Pwidth
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.slideLeft);
            });
    }
    if ($.galleryUtility.rightImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.rightImage.image.unbind().animate({
        'top': $.galleryUtility.rightImageStorage.Ltop,
        'left': risLeft,
        'height': $.galleryUtility.rightImageStorage.Lheight,
        'width': $.galleryUtility.rightImageStorage.Lwidth,
        'opacity': 'hide'
      },
            $.galleryUtility.Options.slideSpeed, 'linear');
    } else {
      $.galleryUtility.rightImage.image.unbind().animate({
        'top': $.galleryUtility.rightImageStorage.Ptop,
        'left': risLeft,
        'height': $.galleryUtility.rightImageStorage.Pheight,
        'width': $.galleryUtility.rightImageStorage.Pwidth,
        'opacity': 'hide'
      },
            $.galleryUtility.Options.slideSpeed, 'linear');
    }
    $.galleryUtility.rightImageStorage.image = $.galleryUtility.rightImage.image;
    $.galleryUtility.rightImage.image = $.galleryUtility.centerImage.image;
    $.galleryUtility.centerImage.image = $.galleryUtility.leftImage.image;
    $.galleryUtility.leftImage.image = $.galleryUtility.leftImageStorage.image;
    $.galleryUtility.setLeftStorage($.galleryUtility.gallery.filter('[index=' + $.galleryUtility.leftImageStorage.image.attr('prev') + ']'));
  };

  $.galleryUtility.slideLeft = function() {
    var riLeft = $.galleryUtility.rightImage.left($.galleryUtility.rightImage.image);
    var liLeft = $.galleryUtility.leftImage.left($.galleryUtility.centerImage.image, $.galleryUtility.rightImage.image);
    var lisLeft = $.galleryUtility.leftImageStorage.left($.galleryUtility.leftImage.image, $.galleryUtility.centerImage.image, $.galleryUtility.rightImage.image);
    if ($.galleryUtility.rightImageStorage.image.attr('layout') === 'landscape') {
      $.galleryUtility.rightImageStorage.image.animate({
        'top': $.galleryUtility.rightImage.Ltop,
        'left': riLeft,
        'height': $.galleryUtility.rightImage.Lheight,
        'width': $.galleryUtility.rightImage.Lwidth,
        'opacity': 'show'
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.slideLeft);
            });
    } else {
      $.galleryUtility.rightImageStorage.image.animate({
        'top': $.galleryUtility.rightImage.Ptop,
        'left': riLeft,
        'height': $.galleryUtility.rightImage.Pheight,
        'width': $.galleryUtility.rightImage.Pwidth,
        'opacity': 5
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.slideLeft);
            });
    }
    if ($.galleryUtility.rightImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.rightImage.image.unbind().animate({
        'top': $.galleryUtility.centerImage.Ltop,
        'left': $.galleryUtility.centerImage.Lleft,
        'height': $.galleryUtility.centerImage.Lheight,
        'width': $.galleryUtility.centerImage.Lwidth
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.zoomIn);
            });
    } else {
      $.galleryUtility.rightImage.image.unbind().animate({
        'top': $.galleryUtility.centerImage.Ptop,
        'left': $.galleryUtility.centerImage.Pleft,
        'height': $.galleryUtility.centerImage.Pheight,
        'width': $.galleryUtility.centerImage.Pwidth
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.zoomIn);
            });
    }
    if ($.galleryUtility.centerImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.centerImage.image.unbind().animate({
        'top': $.galleryUtility.leftImage.Ltop,
        'left': liLeft,
        'height': $.galleryUtility.leftImage.Lheight,
        'width': $.galleryUtility.leftImage.Lwidth
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.slideRight);
            });
    } else {
      $.galleryUtility.centerImage.image.unbind().animate({
        'top': $.galleryUtility.leftImage.Ptop,
        'left': liLeft,
        'height': $.galleryUtility.leftImage.Pheight,
        'width': $.galleryUtility.leftImage.Pwidth
      },
            $.galleryUtility.Options.slideSpeed, 'linear', function() {
              $(this).one('click', $.galleryUtility.slideRight);
            });
    }
    if ($.galleryUtility.leftImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.leftImage.image.unbind().animate({
        'top': $.galleryUtility.leftImageStorage.Ltop,
        'left': lisLeft,
        'height': $.galleryUtility.leftImageStorage.Lheight,
        'width': $.galleryUtility.leftImageStorage.Lwidth, 'opacity': 'hide'
      },
            $.galleryUtility.Options.slideSpeed, 'linear');
    } else {
      $.galleryUtility.leftImage.image.unbind().animate({
        'top': $.galleryUtility.leftImageStorage.Ptop,
        'left': lisLeft,
        'height': $.galleryUtility.leftImageStorage.Pheight,
        'width': $.galleryUtility.leftImageStorage.Pwidth,
        'opacity': 'hide'
      },
            $.galleryUtility.Options.slideSpeed, 'linear');
    }
    $.galleryUtility.leftImageStorage.image = $.galleryUtility.leftImage.image;
    $.galleryUtility.leftImage.image = $.galleryUtility.centerImage.image;
    $.galleryUtility.centerImage.image = $.galleryUtility.rightImage.image;
    $.galleryUtility.rightImage.image = $.galleryUtility.rightImageStorage.image;
    $.galleryUtility.setRightStorage($.galleryUtility.gallery.filter('[index=' + $.galleryUtility.rightImageStorage.image.attr('next') + ']'));
  };

  $.galleryUtility.zoomIn = function() {
    $.galleryUtility.gallery.unbind();
    $.galleryUtility.leftImage.image.add($.galleryUtility.rightImage.image).css('cursor', 'auto');
    if ($.galleryUtility.centerImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.centerImage.image.css('z-index', '99').animate({
        'top': $.galleryUtility.zoomImage.Ltop,
        'left': $.galleryUtility.zoomImage.Lleft,
        'height': $.galleryUtility.zoomImage.Lheight,
        'width': $.galleryUtility.zoomImage.Lwidth
      },
            $.galleryUtility.Options.zoomSpeed, 'linear', function() {
              $.galleryUtility.centerImage.image.one('click', $.galleryUtility.zoomOut);
              if ($.galleryUtility.Options.useCaptions) {
                $('#' + $.galleryUtility.Options.captionDownID).css({
                  'height': 0,
                  'top': $.galleryUtility.zoomImage.Ltop + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10),
                  'left': $.galleryUtility.zoomImage.Lleft + ($.galleryUtility.zoomImage.Lwidth - $.galleryUtility.Options.captionDownWidth) + parseInt($.galleryUtility.centerImage.image.css('borderLeftWidth'), 10),
                  'z-index': 100,
                  'position': 'absolute'
                }).show().animate({ 'height': $.galleryUtility.Options.captionDownHeight }, 'fast', 'linear', function() {
                  $('#' + $.galleryUtility.Options.captionDownID).one('click', $.galleryUtility.LcaptionDown);
                });
              }
            });
    } else {
      $.galleryUtility.centerImage.image.css('z-index', '99').animate({
        'top': $.galleryUtility.zoomImage.Ptop,
        'left': $.galleryUtility.zoomImage.Pleft,
        'height': $.galleryUtility.zoomImage.Pheight,
        'width': $.galleryUtility.zoomImage.Pwidth
      },
            $.galleryUtility.Options.zoomSpeed, 'linear', function() {
              $.galleryUtility.centerImage.image.one('click', $.galleryUtility.zoomOut);
              if ($.galleryUtility.Options.useCaptions) {
                $('#' + $.galleryUtility.Options.captionDownID).css({
                  'height': 0,
                  'top': $.galleryUtility.zoomImage.Ptop + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10),
                  'left': $.galleryUtility.zoomImage.Pleft + ($.galleryUtility.zoomImage.Pwidth - $.galleryUtility.Options.captionDownWidth) + parseInt($.galleryUtility.centerImage.image.css('borderLeftWidth'), 10),
                  'z-index': 100,
                  'position': 'absolute'
                }).show().animate({ 'height': $.galleryUtility.Options.captionDownHeight }, 'fast', 'linear', function() {
                  $('#' + $.galleryUtility.Options.captionDownID).one('click', $.galleryUtility.PcaptionDown);
                });
              }
            });
    }
  };

  $.galleryUtility.LcaptionDown = function() {
    $.galleryUtility.centerImage.image.unbind();
    $('body').append('<span id="' + $.galleryUtility.Options.captionID + '" style="' + $.galleryUtility.Options.captionStyle + '" class="' + $.galleryUtility.Options.captionClass + '">' + $.galleryUtility.centerImage.image.attr($.galleryUtility.Options.captionTextAttribute) + '</span>');
    $('#' + $.galleryUtility.Options.captionID).css({
      'top': $.galleryUtility.zoomImage.Ltop + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10),
      'left': $.galleryUtility.zoomImage.Lleft + parseInt($.galleryUtility.centerImage.image.css('borderLeftWidth'), 10),
      'width': $.galleryUtility.zoomImage.Lwidth,
      'height': 0,
      'position': 'absolute',
      'z-index': '100'
    }).animate({ 'height': Math.round($.galleryUtility.Options.captionHeight($.galleryUtility.zoomImage.Lheight)) }, 'normal', 'linear');
    $('#' + $.galleryUtility.Options.captionDownID).animate({
      'height': 0,
      'top': $.galleryUtility.zoomImage.Ltop + (Math.round($.galleryUtility.Options.captionHeight($.galleryUtility.zoomImage.Lheight))) + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10)
    }, 'normal', 'linear', function() { $('#' + $.galleryUtility.Options.captionDownID).hide(); });
    $('#' + $.galleryUtility.Options.captionUpID).css({
      'top': $.galleryUtility.zoomImage.Ltop + $.galleryUtility.Options.captionDownHeight + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10),
      'left': $.galleryUtility.zoomImage.Lleft + ($.galleryUtility.zoomImage.Lwidth - $.galleryUtility.Options.captionUpWidth) + parseInt($.galleryUtility.centerImage.image.css('borderLeftWidth'), 10),
      'height': 0,
      'position': 'absolute',
      'z-index': '100'
    }).show().animate({
      'top': $.galleryUtility.zoomImage.Ltop + (Math.round($.galleryUtility.Options.captionHeight($.galleryUtility.zoomImage.Lheight))) + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10),
      'height': $.galleryUtility.Options.captionUpHeight
    }, 'normal', 'linear', function() {
      $('#' + $.galleryUtility.Options.captionUpID).one('click', function() {
        $.galleryUtility.LcaptionUp(false);
      });
      $.galleryUtility.centerImage.image.one('click', function() {
        $.galleryUtility.LcaptionUp(true);
      });
    });
  };

  $.galleryUtility.PcaptionDown = function() {
    $.galleryUtility.centerImage.image.unbind();
    $('body').append('<span id="' + $.galleryUtility.Options.captionID + '" style="' + $.galleryUtility.Options.captionStyle + '" class="' + $.galleryUtility.Options.captionClass + '">' + $.galleryUtility.centerImage.image.attr($.galleryUtility.Options.captionTextAttribute) + '</span>');
    $('#' + $.galleryUtility.Options.captionID).css({
      'top': $.galleryUtility.zoomImage.Ptop + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10),
      'left': $.galleryUtility.zoomImage.Pleft + parseInt($.galleryUtility.centerImage.image.css('borderLeftWidth'), 10),
      'width': $.galleryUtility.zoomImage.Pwidth,
      'height': 0,
      'position': 'absolute',
      'z-index': '100'
    }).animate({ 'height': Math.round($.galleryUtility.Options.captionHeight($.galleryUtility.zoomImage.Pheight)) }, 'normal', 'linear');
    $('#' + $.galleryUtility.Options.captionDownID).animate({
      'height': 0,
      'top': $.galleryUtility.zoomImage.Ptop + (Math.round($.galleryUtility.Options.captionHeight($.galleryUtility.zoomImage.Pheight))) + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10)
    }, 'normal', 'linear', function() { $('#' + $.galleryUtility.Options.captionDownID).hide(); });
    $('#' + $.galleryUtility.Options.captionUpID).css({
      'top': $.galleryUtility.zoomImage.Ptop + $.galleryUtility.Options.captionDownHeight + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10),
      'left': $.galleryUtility.zoomImage.Pleft + ($.galleryUtility.zoomImage.Pwidth - $.galleryUtility.Options.captionUpWidth) + parseInt($.galleryUtility.centerImage.image.css('borderLeftWidth'), 10),
      'height': 0,
      'position': 'absolute',
      'z-index': '100'
    }).show().animate({
      'top': $.galleryUtility.zoomImage.Ptop + (Math.round($.galleryUtility.Options.captionHeight($.galleryUtility.zoomImage.Pheight))) + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10),
      'height': $.galleryUtility.Options.captionUpHeight
    }, 'normal', 'linear', function() {
      $('#' + $.galleryUtility.Options.captionUpID).one('click', function() {
        $.galleryUtility.PcaptionUp(false);
      });
      $.galleryUtility.centerImage.image.one('click', function() {
        $.galleryUtility.PcaptionUp(true);
      });
    });
  };

  $.galleryUtility.LcaptionUp = function(unzoom) {
    $('#' + $.galleryUtility.Options.captionID).animate({ 'height': 0 }, 'normal', 'linear', function() { $('#' + $.galleryUtility.Options.captionID).remove(); });
    $('#' + $.galleryUtility.Options.captionUpID).animate({
      'top': $.galleryUtility.zoomImage.Ltop + $.galleryUtility.Options.captionDownHeight + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10),
      'height': 0
    }, 'normal', 'linear', function() {
      $('#' + $.galleryUtility.Options.captionUpID).hide();
    });
    $('#' + $.galleryUtility.Options.captionDownID).show().animate({
      'height': $.galleryUtility.Options.captionDownHeight,
      'top': $.galleryUtility.zoomImage.Ltop + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10)
    }, 'normal', 'linear', function() {
      if (unzoom) {
        $('#' + $.galleryUtility.Options.captionUpID).unbind();
        $.galleryUtility.zoomOut();
      } else {
        $('#' + $.galleryUtility.Options.captionDownID).one('click', $.galleryUtility.LcaptionDown);
        $.galleryUtility.centerImage.image.one('click', $.galleryUtility.zoomOut);
      }
    });
  };

  $.galleryUtility.PcaptionUp = function(unzoom) {
    $('#' + $.galleryUtility.Options.captionID).animate({ 'height': 0 }, 'normal', 'linear', function() { $('#' + $.galleryUtility.Options.captionID).remove(); });
    $('#' + $.galleryUtility.Options.captionUpID).animate({
      'top': $.galleryUtility.zoomImage.Ptop + $.galleryUtility.Options.captionDownHeight + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10),
      'height': 0
    }, 'normal', 'linear', function() {
      $('#' + $.galleryUtility.Options.captionUpID).hide();
    });
    $('#' + $.galleryUtility.Options.captionDownID).show().animate({
      'height': $.galleryUtility.Options.captionDownHeight,
      'top': $.galleryUtility.zoomImage.Ptop + parseInt($.galleryUtility.centerImage.image.css('borderTopWidth'), 10)
    }, 'normal', 'linear', function() {
      if (unzoom) {
        $('#' + $.galleryUtility.Options.captionUpID).unbind();
        $.galleryUtility.zoomOut();
      } else {
        $('#' + $.galleryUtility.Options.captionDownID).one('click', $.galleryUtility.PcaptionDown);
        $.galleryUtility.centerImage.image.one('click', $.galleryUtility.zoomOut);
      }
    });
  };

  $.galleryUtility.zoomOut = function() {
    if ($.galleryUtility.Options.useCaptions) {
      $('#' + $.galleryUtility.Options.captionDownID).animate({ 'height': 0 }, 50, 'linear', $.galleryUtility.zoomOutBody).unbind();
    } else {
      $.galleryUtility.zoomOutBody();
    }
  };

  $.galleryUtility.zoomOutBody = function() {
    $.galleryUtility.leftImage.image.add($.galleryUtility.rightImage.image).css('cursor', 'pointer');
    if ($.galleryUtility.centerImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.centerImage.image.animate({
        'top': $.galleryUtility.centerImage.Ltop,
        'left': $.galleryUtility.centerImage.Lleft,
        'height': $.galleryUtility.centerImage.Lheight,
        'width': $.galleryUtility.centerImage.Lwidth
      },
            $.galleryUtility.Options.zoomSpeed, 'linear', function() {
              $(this).css('z-index', '0').one('click', $.galleryUtility.zoomIn);
              $.galleryUtility.leftImage.image.one('click', $.galleryUtility.slideRight);
              $.galleryUtility.rightImage.image.one('click', $.galleryUtility.slideLeft);
            });
    } else {
      $.galleryUtility.centerImage.image.animate({
        'top': $.galleryUtility.centerImage.Ptop,
        'left': $.galleryUtility.centerImage.Pleft,
        'height': $.galleryUtility.centerImage.Pheight,
        'width': $.galleryUtility.centerImage.Pwidth
      },
            $.galleryUtility.Options.zoomSpeed, 'linear', function() {
              $(this).css('z-index', '0').one('click', $.galleryUtility.zoomIn);
              $.galleryUtility.leftImage.image.one('click', $.galleryUtility.slideRight);
              $.galleryUtility.rightImage.image.one('click', $.galleryUtility.slideLeft);
            });
    }
  };

  $.galleryUtility.setRightStorage = function(image) {
    $.galleryUtility.rightImageStorage.image = image;
    if ($.galleryUtility.rightImageStorage.image.attr('layout') === 'landscape') {
      $.galleryUtility.rightImageStorage.image.hide().css({
        'top': $.galleryUtility.rightImageStorage.Ltop,
        'height': $.galleryUtility.rightImageStorage.Lheight,
        'width': $.galleryUtility.rightImageStorage.Lwidth
      });
    } else {
      $.galleryUtility.rightImageStorage.image.hide().css({
        'top': $.galleryUtility.rightImageStorage.Ptop,
        'height': $.galleryUtility.rightImageStorage.Pheight,
        'width': $.galleryUtility.rightImageStorage.Pwidth
      });
    }
    $.galleryUtility.rightImageStorage.image.css('left', $.galleryUtility.rightImageStorage.left($.galleryUtility.rightImage.image));
  };

  $.galleryUtility.setLeftStorage = function(image) {
    $.galleryUtility.leftImageStorage.image = image;
    if ($.galleryUtility.leftImageStorage.image.attr('layout') === 'landscape') {
      $.galleryUtility.leftImageStorage.image.hide().css({
        'top': $.galleryUtility.leftImageStorage.Ltop,
        'height': $.galleryUtility.leftImageStorage.Lheight,
        'width': $.galleryUtility.leftImageStorage.Lwidth
      });
    } else {
      $.galleryUtility.leftImageStorage.image.hide().css({
        'top': $.galleryUtility.leftImageStorage.Ptop,
        'height': $.galleryUtility.leftImageStorage.Pheight,
        'width': $.galleryUtility.leftImageStorage.Pwidth
      });
    }
    $.galleryUtility.leftImageStorage.image
             .css('left', $.galleryUtility.leftImageStorage.left($.galleryUtility.leftImageStorage.image, $.galleryUtility.leftImage.image, $.galleryUtility.centerImage.image));
  };

  $.galleryUtility.setCenter = function(image) {
    $.galleryUtility.centerImage.image = image;
    if ($.galleryUtility.centerImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.centerImage.image.css({
        'top': $.galleryUtility.centerImage.Ltop,
        'left': $.galleryUtility.centerImage.Lleft,
        'height': $.galleryUtility.centerImage.Lheight,
        'width': $.galleryUtility.centerImage.Lwidth
      });
    } else {
      $.galleryUtility.centerImage.image.css({
        'top': $.galleryUtility.centerImage.Ptop,
        'left': $.galleryUtility.centerImage.Pleft,
        'height': $.galleryUtility.centerImage.Pheight,
        'width': $.galleryUtility.centerImage.Pwidth
      });
    }
  };

  $.galleryUtility.setRight = function(image) {
    $.galleryUtility.rightImage.image = image;
    if ($.galleryUtility.rightImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.rightImage.image.css({
        'top': $.galleryUtility.rightImage.Ltop,
        'height': $.galleryUtility.rightImage.Lheight,
        'width': $.galleryUtility.rightImage.Lwidth
      });
    } else {
      $.galleryUtility.rightImage.image.css({
        'top': $.galleryUtility.rightImage.Ptop,
        'height': $.galleryUtility.rightImage.Pheight,
        'width': $.galleryUtility.rightImage.Pwidth
      });
    }
    $.galleryUtility.rightImage.image.css('left', $.galleryUtility.rightImage.left($.galleryUtility.centerImage.image));
  };

  $.galleryUtility.setLeft = function(image) {
    $.galleryUtility.leftImage.image = image;
    if ($.galleryUtility.leftImage.image.attr('layout') === 'landscape') {
      $.galleryUtility.leftImage.image.css({
        'top': $.galleryUtility.leftImage.Ltop,
        'height': $.galleryUtility.leftImage.Lheight,
        'width': $.galleryUtility.leftImage.Lwidth
      });
    } else {
      $.galleryUtility.leftImage.image.css({
        'top': $.galleryUtility.leftImage.Ptop,
        'height': $.galleryUtility.leftImage.Pheight,
        'width': $.galleryUtility.leftImage.Pwidth
      });
    }
    $.galleryUtility.leftImage.image.css('left', $.galleryUtility.leftImage.left($.galleryUtility.leftImage.image, $.galleryUtility.centerImage.image));
  };

  $.galleryUtility.definePositions = function() {
    var gallery = $('.gallery');
    $.galleryUtility.centerImage.Lheight = Math.round($.galleryUtility.Options.Lheight);
    $.galleryUtility.centerImage.Lwidth = Math.round($.galleryUtility.Options.Lwidth);
    $.galleryUtility.centerImage.Ltop = Math.round($(gallery).height() / 2) - ($.galleryUtility.centerImage.Lheight / 2);
    $.galleryUtility.centerImage.Lleft = Math.round($(window).width() / 2) - ($.galleryUtility.centerImage.Lwidth / 2);
    $.galleryUtility.centerImage.Pheight = Math.round($.galleryUtility.Options.Pheight);
    $.galleryUtility.centerImage.Pwidth = Math.round($.galleryUtility.Options.Pwidth);
    $.galleryUtility.centerImage.Ptop = Math.round(($(gallery).height() / 2) - ($.galleryUtility.centerImage.Pheight / 2));
    $.galleryUtility.centerImage.Pleft = Math.round(($(window).width() / 2) - ($.galleryUtility.centerImage.Pwidth / 2));
    $.galleryUtility.zoomImage.Lheight = Math.round($.galleryUtility.Options.Lzoom($.galleryUtility.centerImage.Lheight));
    $.galleryUtility.zoomImage.Lwidth = Math.round($.galleryUtility.Options.Lzoom($.galleryUtility.centerImage.Lwidth));
    $.galleryUtility.zoomImage.Ltop = Math.round(($(gallery).height() / 2) - ($.galleryUtility.zoomImage.Lheight / 2));
    $.galleryUtility.zoomImage.Lleft = Math.round(($(window).width() / 2) - ($.galleryUtility.zoomImage.Lwidth / 2));
    $.galleryUtility.zoomImage.Pheight = Math.round($.galleryUtility.Options.Pzoom($.galleryUtility.centerImage.Pheight));
    $.galleryUtility.zoomImage.Pwidth = Math.round($.galleryUtility.Options.Pzoom($.galleryUtility.centerImage.Pwidth));
    $.galleryUtility.zoomImage.Ptop = Math.round(($(gallery).height() / 2) - ($.galleryUtility.zoomImage.Pheight / 2));
    $.galleryUtility.zoomImage.Pleft = Math.round(($(window).width() / 2) - ($.galleryUtility.zoomImage.Pwidth / 2));
    $.galleryUtility.leftImage.Lheight = Math.round($.galleryUtility.Options.Lshrink($.galleryUtility.centerImage.Lheight));
    $.galleryUtility.leftImage.Lwidth = Math.round($.galleryUtility.Options.Lshrink($.galleryUtility.centerImage.Lwidth));
    $.galleryUtility.leftImage.Ltop = Math.round($.galleryUtility.centerImage.Ltop + (($.galleryUtility.centerImage.Lheight - $.galleryUtility.leftImage.Lheight) / 2));
    $.galleryUtility.leftImage.left = function(left, center) {
      if (center.attr('layout') === 'landscape') {
        if (left.attr('layout') === 'landscape') {
          return Math.round($.galleryUtility.centerImage.Lleft - ($.galleryUtility.leftImage.Lwidth + $.galleryUtility.Options.gutterWidth));
        } else {
          return Math.round($.galleryUtility.centerImage.Lleft - ($.galleryUtility.leftImage.Pwidth + $.galleryUtility.Options.gutterWidth));
        }
      } else {
        if (left.attr('layout') === 'landscape') {
          return Math.round($.galleryUtility.centerImage.Pleft - ($.galleryUtility.leftImage.Lwidth + $.galleryUtility.Options.gutterWidth));
        } else {
          return Math.round($.galleryUtility.centerImage.Pleft - ($.galleryUtility.leftImage.Pwidth + $.galleryUtility.Options.gutterWidth));
        }
      }
    };
    $.galleryUtility.leftImage.Pheight = Math.round($.galleryUtility.Options.Pshrink($.galleryUtility.centerImage.Pheight));
    $.galleryUtility.leftImage.Pwidth = Math.round($.galleryUtility.Options.Pshrink($.galleryUtility.centerImage.Pwidth));
    $.galleryUtility.leftImage.Ptop = Math.round($.galleryUtility.centerImage.Ptop + (($.galleryUtility.centerImage.Pheight - $.galleryUtility.leftImage.Pheight) / 2));
    $.galleryUtility.rightImage.Lheight = Math.round($.galleryUtility.Options.Lshrink($.galleryUtility.centerImage.Lheight));
    $.galleryUtility.rightImage.Lwidth = Math.round($.galleryUtility.Options.Lshrink($.galleryUtility.centerImage.Lwidth));
    $.galleryUtility.rightImage.Ltop = Math.round($.galleryUtility.centerImage.Ltop + (($.galleryUtility.centerImage.Lheight - $.galleryUtility.rightImage.Lheight) / 2));
    $.galleryUtility.rightImage.left = function(center) {
      if (center.attr('layout') === 'landscape') {
        return Math.round($.galleryUtility.centerImage.Lleft + ($.galleryUtility.centerImage.Lwidth + $.galleryUtility.Options.gutterWidth));
      } else {
        return Math.round($.galleryUtility.centerImage.Pleft + ($.galleryUtility.centerImage.Pwidth + $.galleryUtility.Options.gutterWidth));
      }
    };
    $.galleryUtility.rightImage.Pheight = Math.round($.galleryUtility.Options.Pshrink($.galleryUtility.centerImage.Pheight));
    $.galleryUtility.rightImage.Pwidth = Math.round($.galleryUtility.Options.Pshrink($.galleryUtility.centerImage.Pwidth));
    $.galleryUtility.rightImage.Ptop = Math.round($.galleryUtility.centerImage.Ptop + (($.galleryUtility.centerImage.Pheight - $.galleryUtility.leftImage.Pheight) / 2));
    $.galleryUtility.leftImageStorage.Lheight = Math.round($.galleryUtility.Options.Lshrink($.galleryUtility.leftImage.Lheight));
    $.galleryUtility.leftImageStorage.Lwidth = Math.round($.galleryUtility.Options.Lshrink($.galleryUtility.leftImage.Lwidth));
    $.galleryUtility.leftImageStorage.Ltop = Math.round($.galleryUtility.leftImage.Ltop + (($.galleryUtility.leftImage.Lheight - $.galleryUtility.leftImageStorage.Lheight) / 2));
    $.galleryUtility.leftImageStorage.left = function(leftStorage, left, center) {
      if (leftStorage.attr('layout') === 'landscape') {
        return Math.round($.galleryUtility.leftImage.left(left, center) - ($.galleryUtility.leftImageStorage.Lwidth + $.galleryUtility.Options.gutterWidth));
      } else {
        return Math.round($.galleryUtility.leftImage.left(left, center) - ($.galleryUtility.leftImageStorage.Pwidth + $.galleryUtility.Options.gutterWidth));
      }
    };
    $.galleryUtility.leftImageStorage.Pheight = Math.round($.galleryUtility.Options.Pshrink($.galleryUtility.leftImage.Pheight));
    $.galleryUtility.leftImageStorage.Pwidth = Math.round($.galleryUtility.Options.Pshrink($.galleryUtility.leftImage.Pwidth));
    $.galleryUtility.leftImageStorage.Ptop = Math.round($.galleryUtility.leftImage.Ptop + (($.galleryUtility.leftImage.Pheight - $.galleryUtility.leftImageStorage.Pheight) / 2));
    $.galleryUtility.rightImageStorage.Lheight = Math.round($.galleryUtility.Options.Lshrink($.galleryUtility.rightImage.Lheight));
    $.galleryUtility.rightImageStorage.Lwidth = Math.round($.galleryUtility.Options.Lshrink($.galleryUtility.rightImage.Lwidth));
    $.galleryUtility.rightImageStorage.Ltop = Math.round($.galleryUtility.rightImage.Ltop + (($.galleryUtility.rightImage.Lheight - $.galleryUtility.rightImageStorage.Lheight) / 2));
    $.galleryUtility.rightImageStorage.left = function(right) {
      if (right.attr('layout') === 'landscape') {
        return Math.round($.galleryUtility.rightImage.left(right) + ($.galleryUtility.rightImage.Lwidth + $.galleryUtility.Options.gutterWidth));
      } else {
        return Math.round($.galleryUtility.rightImage.left(right) + ($.galleryUtility.rightImage.Pwidth + $.galleryUtility.Options.gutterWidth));
      }
    };
    $.galleryUtility.rightImageStorage.Pheight = Math.round($.galleryUtility.Options.Pshrink($.galleryUtility.rightImage.Pheight));
    $.galleryUtility.rightImageStorage.Pwidth = Math.round($.galleryUtility.Options.Pshrink($.galleryUtility.rightImage.Pwidth));
    $.galleryUtility.rightImageStorage.Ptop = Math.round($.galleryUtility.rightImage.Ptop + (($.galleryUtility.rightImage.Pheight - $.galleryUtility.rightImageStorage.Pheight) / 2));
  };
})(jQuery);