/*
**
**  GalleryView - jQuery Content Gallery Plugin
**  Author:     Jack Anderson
**  Version:    3.0b3 (March 15, 2011)
**
**  Please use this development script if you intend to make changes to the
**  plugin code.  For production sites, it is recommended you use jquery.galleryview-3.0.min.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;
$(window).load(function(){
  window_loaded = true;
});
(function($){
  $.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 paused = false;      // BOOLEAN - flag to indicate whether automated transitions are active
    var pointer_speed = 0;    // INT - Speed (in milliseconds) of pointer animation
    var animate_panels = true;  // BOOLEAN - flag to indicate whether panels will animate during transitions
    var current = 1;      // INT - index of current panel/frame
    var gallery_images;      // OBJECT - container for images within UL passed to plugin
    var image_count = 0;    // INT - number of images within gallery
    var loaded_images = 0;    // INT - number of gallery images that have been loaded in the browser

  // Element dimensions
    var gallery_width;
    var gallery_height;
    var pointer_height;
    var pointer_width;
    var strip_width;
    var strip_height;
    var wrapper_width;
    var wrapper_height;
    var f_frame_width;
    var f_frame_height;
    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;
    var j_panel_wrapper;
  

/*
**  Plugin Functions
*/

  /*
  **  showItem(int,boolean,function)
  **    Transition from current frame to frame i (1-based index)
  **    skip_animation flag let's us override transition speed to show an item instantly
  **    (useful when loading gallery for the first time)
  **    If provided, run callback function after transition completes
  */
    function showItem(i,speed,callback) {
      // A scrolling filmstrip will contain three copies of each frame, we want to know the relative position of the target frame
      var mod_i = i%item_count;
      var distance;
      var diststr;

      // Disable next/prev buttons until transition is complete
      // This prevents overlapping of animations
      $('.gv-nav-next, .gv-panel-nav-next, .gv-nav-prev, .gv-panel-nav-prev',j_gallery).unbind('click');
      j_frames.unbind('click');

      // Use timer to rebind navigation buttons when transition ends
      $(document).oneTime(speed,'bindNavButtons',function(){
        $('.gv-nav-next, .gv-panel-nav-next',j_gallery).click(showNextItem);
        $('.gv-nav-prev, .gv-panel-nav-prev',j_gallery).click(showPrevItem);
        enableFrameClicking();
      });

      if(opts.show_filmstrip) {

        // Fade out all frames
        j_frames.removeClass('current').find('img').stop().animate({opacity:opts.frame_opacity},speed);

        // Fade in target frame
        j_frames.eq(i).addClass('current').find('img').stop().animate({opacity:1},speed);
      }

      //If necessary, transition between panels
      if(opts.show_panels) {
        if(animate_panels) {
          if(opts.panel_animation=='slide') {

            // Move target frame just to the right of the current frame
            j_panels.eq(mod_i).css({
              left: getInt($('.gv-panel.current').eq(0).css('left'))+opts.panel_width+'px',
              zIndex: 50
            }).show().animate({
              left: '-='+opts.panel_width+'px'
            },speed,opts.easing,function(){
              $(this).addClass('current');
            });

            // Slide current frame and target frame to the left
            $('.gv-panel.current').css({zIndex:49}).animate({
              left: '-='+opts.panel_width+'px'
            },speed,opts.easing,function(){
              $(this).removeClass('current').hide();
            });
          } else if(opts.panel_animation=='zoomOut') {

            // After zoom is complete, add 'current' class to now visible panel and move it to top of stack via z-index
            $(document).oneTime(speed,'setCurrentFrame',function(){
              j_panels.eq(mod_i).addClass('current').css('zIndex',50);
            });

            // Show target panel and place below current frame via z-index
            j_panels.eq(mod_i).show().css('zIndex',49);

            // Shrink panel container to center while moving image in opposite direction
            // End result is an image that remains static while borders of container shrink
            $('.gv-panel.current img').animate({
              top: '-='+opts.panel_height/2+'px',
              left:'-='+opts.panel_width/2+'px'
            },speed,'swing',function(){

              // After zoom is complete, immediately animate it back to its original position for next time
              $(this).animate({
                top: '+='+opts.panel_height/2+'px',
                left: '+='+opts.panel_width/2+'px'
              },0);
            });

            $('.gv-panel.current').animate({
              top:'+='+opts.panel_height/2+'px',
              left:'+='+opts.panel_width/2+'px',
              height:0,
              width:0
            },speed,'swing',function(){
              $(this).removeClass('current').hide().css({
                top:getPos(j_panels[mod_i]).top+'px',
                left:getPos(j_panels[mod_i]).left+'px',
                height:opts.panel_height+'px',
                width:opts.panel_width+'px'
              });
            });
          } else if(opts.panel_animation == 'crossfade') {

            // Default behavior is to fade panel into view
            j_panels.removeClass('current').fadeOut(speed,function(){$(this).css('filter','');}).eq(mod_i).addClass('current').fadeIn(speed,function(){$(this).css('filter','');});
          } else {

            // Fade out panels, and then fade in target panel
            // Use timer due to inconsistency in fadeIn/fadeOut callback reliability
            j_panels.removeClass('current').stop().fadeOut(speed/2);
            $(document).oneTime(speed/2,'fadeInPanel',function(){
              j_panels.eq(mod_i).addClass('current').stop().fadeIn(speed/2);
            });
          }
        } else {

          // If no animation style is chosen, simply show the new panel instantly
          $(document).oneTime(speed,'switch_panels',function(){j_panels.hide().eq(mod_i).show();});
        }
      }

      // If gallery has a filmstrip, handle animation of frames
      if(opts.show_filmstrip) {

        // Slide either pointer or filmstrip, depending on transition method
        if(opts.filmstrip_style == 'scroll' && slide_method=='strip') {

          // Stop filmstrip if it's currently in motion
          j_filmstrip.stop();

          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},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 = mod_i;
                iterator = i;
                j_filmstrip.css('left','-'+((f_frame_width+opts.frame_gap)*i)+'px');
              } else if (i<=(item_count-strip_size)) {
                i = (mod_i)+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});
              }
            });
          } else {

            //Determine distance between pointer (eventual destination) and target frame
            distance = getPos(j_frames[i]).top-getPos($('.gv-strip_wrapper',j_gallery)[0]).top;
            diststr = (distance>=0?'-=':'+=')+Math.abs(distance)+'px';

            // Animate filmstrip and slide target frame under pointer
            j_filmstrip.animate({
              'top':diststr
            },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 = mod_i;
                iterator = i;
                j_filmstrip.css('top','-'+((f_frame_height+opts.frame_gap)*i)+'px');
              } else if (i<=(item_count-strip_size)) {
                i = (mod_i)+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});
              }

              // If panels are not set to fade in/out, simply hide all panels and show the target panel
              if(!animate_panels) {
                j_panels.hide().eq(mod_i).show();
              }
            });
          }
        } 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'
            },pointer_speed,opts.easing,function(){
              if(!animate_panels) {j_panels.hide().eq(mod_i).show();}
            });
          } else {

            // Slide the pointer over the target frame
            j_pointer.animate({
              top:pos.top+(f_frame_height/2)-(pointer_height)+'px'
            },pointer_speed,opts.easing,function(){
              if(!animate_panels) {j_panels.hide().eq(mod_i).show();}
            });
          }
        }
      }
      if(callback) {$(document).oneTime(speed,'showItemCallback',callback);}
      current = i;
    };

  /*
  **  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,opts.transition_speed);

      // If automated transitions haven't been cancelled by an option or paused on hover, re-enable them
      if(!paused && opts.transition_interval > 0) {
        $(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,opts.transition_speed);

      // If automated transitions haven't been cancelled by an option or paused on hover, re-enable them
      if(!paused && opts.transition_interval > 0) {
        $(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) {
      if(!el) return {top:0,left:0};
      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,opts.transition_speed);
              iterator = i;
              if(!paused && opts.transition_interval > 0) {
                $(document).everyTime(opts.transition_interval,"transition",function(){showNextItem();});
              }
            }
          });
        }
      });
    };

  /*
  **  buildPanels()
  **    Construct gallery panels: <div class="gv-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($('.gv-panel-overlay',this).length>0) {
          $(this).append('<div class="gv-overlay-background"></div>');
        }
         });

      // If there is no filmstrip in this gallery, add navigation buttons to the panel itself
      if(opts.show_panel_nav) {
        $('<div></div>').addClass('gv-panel-nav-next').appendTo(j_gallery).css({
          position:'absolute',
          zIndex:'1100',
          top:((opts.filmstrip_position=='top'?opts.frame_gap+wrapper_height:0)+(opts.panel_height-22)/2)+'px',
          right:((opts.filmstrip_position=='right'?opts.frame_gap+wrapper_width:0)+10)+'px',
          display:'none'
        }).click(showNextItem);
        $('<div></div>').addClass('gv-panel-nav-prev').appendTo(j_gallery).css({
          position:'absolute',
          zIndex:'1100',
          top:((opts.filmstrip_position=='top'?opts.frame_gap+wrapper_height:0)+(opts.panel_height-22)/2)+'px',
          left:((opts.filmstrip_position=='left'?opts.frame_gap+wrapper_width:0)+10)+'px',
          display:'none'
        }).click(showPrevItem);
      }

      //Set size and position of panel container
      j_panel_wrapper.css({
        width:opts.panel_width+'px',
        height:opts.panel_height+'px',
        position:'absolute',
        overflow:'hidden'
      });

      if(opts.show_filmstrip) {
        switch(opts.filmstrip_position) {
          case 'top': j_panel_wrapper.css({top:wrapper_height+opts.frame_gap+'px'}); break;
          case 'left': j_panel_wrapper.css({left:wrapper_width+opts.frame_gap+'px'}); break;
          default: break;
        }
      }

      // 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',
          top:0,
          left:0,
          display:'none'
        });
      });

      // Position each panel overlay within panel
      $('.gv-panel-overlay',j_panels).css({
        position:'absolute',
        zIndex:'999',
        width:(opts.panel_width-extraWidth($('.gv-panel-overlay',j_panels)))+'px',
        left:0
      });
      $('.gv-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') {
        $('.gv-panel-overlay',j_panels).css('top',0);
        $('.gv-overlay-background',j_panels).css('top',0);
      } else {
        $('.gv-panel-overlay',j_panels).css('bottom',0);
        $('.gv-overlay-background',j_panels).css('bottom',0);
      }

      $('.gv-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="gv-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="gv-strip_wrapper"></div>');
      if(opts.filmstrip_style == 'scroll' && 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="gv-caption"></div>').each(function(i){
          $(this).find('.gv-caption').html($(this).find('img').attr('title'));
        });
      }

      // 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' && opts.filmstrip_style == 'scroll' && slide_method=='strip'?-((f_frame_height+opts.frame_gap)*iterator):0)+'px',
        left:(filmstrip_orientation=='horizontal' && opts.filmstrip_style == 'scroll' && 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?f_caption_height:0)+'px',
        width:f_frame_width+'px',
        zIndex:'901',
        padding:0,
        cursor:'pointer',
        marginBottom:opts.frame_gap+'px',
        marginRight:opts.frame_gap+'px'
      });

      // Apply styling to individual image wrappers. These will eventually hide overflow in the case of cropped filmstrip images
      $('.gv-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'?f_caption_height: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(){
          $(this).stop().animate({opacity:1},300);
        }).mouseout(function(){
          //Don't fade out current frame on mouseout
          if(!$(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
      $('.gv-strip_wrapper',j_gallery).css({
        position:'absolute',
        overflow:'hidden'
      });

      // Position filmstrip within gallery based on user options
      if(filmstrip_orientation=='horizontal') {
        $('.gv-strip_wrapper',j_gallery).css({
          top:opts.show_panels ? opts.filmstrip_position=='top'?0:opts.panel_height+opts.frame_gap+'px' : 0,
          left:((gallery_width-wrapper_width)/2)+'px',
          width:wrapper_width+'px',
          height:wrapper_height+'px'
        });
      } else {
        $('.gv-strip_wrapper',j_gallery).css({
          left:opts.show_panels ? opts.filmstrip_position=='left'?0:opts.panel_width+opts.frame_gap+'px' : 0,
          top:0,
          width:wrapper_width+'px',
          height:wrapper_height+'px'
        });
      }

      // Style frame captions
      $('.gv-caption',j_gallery).css({
        position:'absolute',
        top:(opts.filmstrip_position=='bottom'?f_frame_height:0)+'px',
        left:0,
        margin:0,
        width:f_caption_width+'px',
        overflow:'hidden'
      });

      // Create pointer for current frame
      var pointer = $('<div></div>');
      pointer.addClass('gv-pointer').appendTo(j_gallery).css({
         position:'absolute',
         zIndex:'1000',
         width:0,
         fontSize:0,
         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({
                top:wrapper_height+'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))+'px',
                borderBottomColor:transColor,
                borderRightColor:transColor,
                borderLeftColor:transColor
              }); break;
        case 'bottom': pointer.css({
                  bottom:wrapper_height+'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))+'px',
                  borderTopColor:transColor,
                  borderRightColor:transColor,
                  borderLeftColor:transColor
                }); break;
        case 'left': pointer.css({
                left:wrapper_width+'px',
                top:(f_frame_height/2)-(pointer_height)+(slide_method=='strip'?0:((f_frame_height+opts.frame_gap)*iterator))+'px',
                borderBottomColor:transColor,
                borderRightColor:transColor,
                borderTopColor:transColor
              }); break;
        case 'right': pointer.css({
                right:wrapper_width+'px',
                top:(f_frame_height/2)-(pointer_height)+(slide_method=='strip'?0:((f_frame_height+opts.frame_gap)*iterator))+'px',
                borderBottomColor:transColor,
                borderLeftColor:transColor,
                borderTopColor:transColor
              }); break;
      }

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

      // Add navigation buttons
      if(opts.show_filmstrip_nav) {
        var navNext = $('<div></div>');
        navNext.addClass('gv-nav-next').appendTo(j_gallery).css({
          position:'absolute'
        }).click(showNextItem);

        var navPrev = $('<div></div>');
        navPrev.addClass('gv-nav-prev').appendTo(j_gallery).css({
          position:'absolute'
        }).click(showPrevItem);

        if(filmstrip_orientation=='horizontal') {
          navNext.css({
            top:(opts.show_panels ? (opts.filmstrip_position=='top'?0:opts.panel_height+opts.frame_gap) : 0)+((strip_height-22)/2)+'px',
            right:((gallery_width)/2)-(wrapper_width/2)-opts.frame_gap-22+'px'
          });
          navPrev.css({
            top:(opts.show_panels ? (opts.filmstrip_position=='top'?0:opts.panel_height+opts.frame_gap) : 0)+((strip_height-22)/2)+'px',
            left:((gallery_width)/2)-(wrapper_width/2)-opts.frame_gap-22+'px'
           });
        } else {
          navNext.css({
            left:(opts.show_panels ? (opts.filmstrip_position=='left'?0:opts.panel_width+opts.frame_gap) : 0)+((strip_width-22)/2)+13+'px',
            top:wrapper_height+opts.frame_gap+'px'
          });
          navPrev.css({
            left:(opts.show_panels ? (opts.filmstrip_position=='left'?0:opts.panel_width+opts.frame_gap) : 0)+((strip_width-22)/2)-13+'px',
            top:wrapper_height+opts.frame_gap+'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+j_gallery.outerWidth() && y > top && y < top+j_gallery.outerHeight();
    };

  /*
  **  mouseIsOverPanel(int,int)
  **    Check to see if mouse coordinates lie within borders of panel
  **    This is a more reliable method than using the mouseover event
  **    RETURN - boolean
  */
    function mouseIsOverPanel(x,y) {

      // Get position of panel wrapper in relation to gallery
      var pos = getPos($('#'+id+' .gv-panel_wrap')[0]);
      var gPos = getPos(j_gallery[0]);

      // Add wrap position to gallery position
      var top = pos.top+gPos.top;
      var left = pos.left+gPos.left;

      return x > left && x < left+j_panels.outerWidth() && y > top && y < top+j_panels.outerHeight();
    };

  /*
  **  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() {

      // Get gallery images
      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]);
        }
      });

      // Set gallery dimensions
      j_gallery.css({
        position:'relative',
        width:gallery_width+'px',
        height:gallery_height+'px'
      });

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

      //Strip out panel overlays if the user does not want to display them
      if(!opts.show_overlays) {
        $('.gv-panel-overlay',j_gallery).remove();
      }

      // 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_panel_nav) {
        $(document).mousemove(function(e){

          // If user wants to pause on hover and mouse is over the gallery, halt any animations
          if(opts.pause_on_hover) {
            if(mouseIsOverGallery(e.pageX,e.pageY) && !paused) {
              // Pause slideshow in 500ms. This allows for brief swipes of the mouse over the gallery without unnecessarily pausing it
              $(document).oneTime(500,"animation_pause",function(){
                $(document).stopTime("transition");
                paused=true;
              });
            } else {
              $(document).stopTime("animation_pause");
              if(paused && opts.transition_interval > 0) {
                $(document).everyTime(opts.transition_interval,"transition",function(){
                  showNextItem();
                });
                paused = false;
              }
            }
          }

          // If panel navigation is turned on, display or hide it based on mouse position
          if(opts.show_panel_nav) {
            if(mouseIsOverPanel(e.pageX,e.pageY) && !panel_nav_displayed) {
              $('.gv-panel-nav-next, .gv-panel-nav-prev',j_gallery).show();
              panel_nav_displayed = true;
            } else if(!mouseIsOverPanel(e.pageX,e.pageY) && panel_nav_displayed) {
              $('.gv-panel-nav-next, .gv-panel-nav-prev',j_gallery).hide();
              panel_nav_displayed = false;
            }
          }
        });
      }

      // Hide loading box and display gallery
      j_filmstrip.css('visibility','visible');
      j_gallery.css('visibility','visible');

      // Show the 'first' item and then fade out the loader box and begin slideshow timer if necessary
      showItem(iterator,10,function(){
        $('.gv-loader',j_gallery).fadeOut('1000',function(){

          // If we have more than one item, begin automated transitions
          if(item_count > 1 && opts.transition_interval > 0) {
            $(document).everyTime(opts.transition_interval,"transition",function(){
              showNextItem();
            });
          }
        });
      });


    };

  /*
  **  MAIN PLUGIN CODE
  */
    return this.each(function() {

      // Get UL passed to plugin
      var _t = $(this);

      // Hide the unstyled UL until we've created the gallery
      _t.css('visibility','hidden');

      // Reference images for later use (we'll wait for each to load before building gallery)
      gallery_images = $('img',_t);
      image_count = gallery_images.length;

      // Set the current frame index to that chosen by the user
      // current is 0-based and opts.start_frame is 1-based
      current = opts.start_frame-1;

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

      // Assign filmstrip class to the UL sent to the plugin
      _t.removeAttr('id').addClass('gv-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="gv-panel-content"> elements, we will scale the UL images to fill the panels
      scale_panel_images = $('.gv-panel-content',j_gallery).length==0;

      animate_panels = (opts.panel_animation != 'none');

      // Determine filmstrip orientation (vertical or horizontal)
      filmstrip_orientation = (opts.filmstrip_position=='top'||opts.filmstrip_position=='bottom'?'horizontal':'vertical');

      // Do not show captions on vertical filmstrips (override user set option)
      if(filmstrip_orientation=='vertical') { opts.show_captions = false; }


      // Make sure pointer does not extend past width of frame
      if(filmstrip_orientation == 'horizontal' && opts.pointer_size > opts.frame_width/2) {
        opts.pointer_size = opts.frame_width/2;
      }
      if(filmstrip_orientation == 'vertical' && opts.pointer_size > opts.frame_height/2) {
        opts.pointer_size = opts.frame_height/2;
      }


      // Assign elements to variables to minimize calls to jQuery
      j_filmstrip = $('.gv-filmstrip',j_gallery);
      j_frames = $('li',j_filmstrip);
      j_frames.addClass('gv-frame');
      j_panel_wrapper = $('<div>');
      j_panel_wrapper.addClass('gv-panel_wrap').prependTo(j_gallery);

      // If the user wants panels, generate them using the filmstrip images
      if(opts.show_panels) {
        for(i=j_frames.length-1;i>=0;i--) {
          jf = j_frames.eq(i);
          if(jf.find('.gv-panel-content').length>0) {
            jf.find('.gv-panel-content').remove().prependTo(j_panel_wrapper).addClass('gv-panel').addClass(jf.attr('class')).removeClass('gv-frame');
          } else {
            p = $('<div>');
            p.addClass('gv-panel');
            p.addClass(jf.attr('class')).removeClass('gv-frame');
            im = $('<img />');
            jfimg = jf.find('img').eq(0)
            im.attr('src',jfimg.attr('src'));
            if(jfimg.parent('a').length > 0){
              ima = $('<a></a>');
              ima.attr('href',jfimg.parent('a').eq(0).attr('href'));
              ima.attr('target',jfimg.parent('a').eq(0).attr('target'));
              ima.append(im);
              ima.appendTo(p);
            } else {
              im.appendTo(p);
            }
            p.prependTo(j_panel_wrapper);
            j_frames.eq(i).find('.gv-panel-overlay').remove().appendTo(p);
          }
        }
      } else {
        $('.gv-panel-overlay',j_frames).remove();
        $('.gv-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="gv-img_wrap"></div>');
          } else {
            $(this).find('img').wrap('<div class="gv-img_wrap"></div>');
          }
        });
        j_frame_img_wrappers = $('.gv-img_wrap',j_frames);
      }

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

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

      // Briefly create a caption element so galleryView can determine any padding or borders applied by the user
      $('<div class="gv-caption"></div>').appendTo(j_frames);

      // 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);
      frame_caption_size = getInt($('.gv-caption',j_gallery).css('height'));
      f_caption_width = f_frame_width - extraWidth($('.gv-caption',j_gallery));
      f_caption_height = frame_caption_size + extraHeight($('.gv-caption',j_gallery));

      // Delete the temporary caption element
      $('.gv-caption',j_gallery).remove();

      // 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-(!opts.show_filmstrip_nav?0:(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-(!opts.show_filmstrip_nav?0: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';
      }

      // Do not show pointer if there are multiple rows in the filmstrip
      if(Math.ceil(item_count/strip_size) > 1) { opts.pointer_size = 0; }

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

      iterator = opts.start_frame-1;
      if(opts.filmstrip_style == 'scroll' && strip_size < item_count) {
        iterator += item_count;
      }

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

      // Width of filmstrip
      if(filmstrip_orientation=='horizontal') {
        if(opts.filmstrip_style == 'show all' || (opts.filmstrip_style == 'scroll' && slide_method == 'pointer')) {
          strip_width = (f_frame_width*strip_size)+(opts.frame_gap*(strip_size));
        }
        else {
          strip_width = (f_frame_width*item_count*3)+(opts.frame_gap*((item_count*3)));
        }
      } else {
        if(opts.filmstrip_style == 'show all') {
          strip_width = (f_frame_width*Math.ceil(item_count/strip_size))+(opts.frame_gap*(Math.ceil(item_count/strip_size)));
        } else {
          strip_width = (f_frame_width);
        }
      }

      // Height of filmstrip
      if(filmstrip_orientation=='horizontal') {
        if(opts.filmstrip_style == 'show all') {
          strip_height = ((f_frame_height+(opts.show_captions?f_caption_height:0))*Math.ceil(item_count/strip_size))+(opts.frame_gap*(Math.ceil(item_count/strip_size)-1));
        } else {
          strip_height = (f_frame_height+(opts.show_captions?f_caption_height:0));
        }
      } else {
        if(opts.filmstrip_style =='show all' || (opts.filmstrip_style == 'scroll' && slide_method == 'pointer')) {
          strip_height = ((f_frame_height*strip_size)+opts.frame_gap*(strip_size-1));
        }
        else {
          strip_height = (f_frame_height*item_count*3)+(opts.frame_gap*((item_count*3)-1));
        }
      }

      // Width of filmstrip wrapper (to hide overflow)
      if(filmstrip_orientation=='horizontal') {
        wrapper_width = ((strip_size*f_frame_width)+((strip_size-1)*opts.frame_gap));
        if(opts.filmstrip_style == 'show all') {
          wrapper_height = ((f_frame_height+(opts.show_captions?f_caption_height:0))*Math.ceil(item_count/strip_size))+(opts.frame_gap*(Math.ceil(item_count/strip_size)-1));
        } else {
          wrapper_height = (f_frame_height+(opts.show_captions?f_caption_height:0));
        }
      } else {
        wrapper_height = ((strip_size*f_frame_height)+((strip_size-1)*opts.frame_gap));
        if(opts.filmstrip_style == 'show all') {
          wrapper_width = (f_frame_width*Math.ceil(item_count/strip_size))+(opts.frame_gap*(Math.ceil(item_count/strip_size)-1));
        } else {
          wrapper_width = f_frame_width;
        }
      }

      // There shouldn't be any padding on the gallery element
      j_gallery.css('padding',0);

      // Determine final dimensions of gallery
      if(filmstrip_orientation=='horizontal') {

        // Width of gallery block
        gallery_width = opts.show_panels?opts.panel_width:wrapper_width+44+(opts.frame_gap*2);

        // Height of gallery block = screen + filmstrip + captions (optional)
        gallery_height = (opts.show_panels?opts.panel_height+(opts.show_filmstrip?opts.frame_gap:0):0)+(opts.show_filmstrip?wrapper_height:0);
      } else {

        // Width of gallery block
        gallery_height = opts.show_panels?opts.panel_height:wrapper_height+22;

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

      // Place loading box over gallery until page loads
      galleryPos = getPos(j_gallery[0]);
      $('<div>').addClass('gv-loader').css({
        position:'absolute',
        zIndex:'32666',
        opacity:1,
        top:0,
        left:0,
        width:gallery_width+'px',
        height:gallery_height+'px'
      }).appendTo(j_gallery);

      // We don't want to move to the next frame before the current one is done loading
      // If the animation speed is greater than the delay between animations, set them equal
      if(opts.transition_speed > opts.transition_interval && opts.transition_interval > 0) {
        opts.transition_speed = opts.transition_interval;
      }

      // Set pointer animation speed based on user options
      pointer_speed = opts.animate_pointer ? opts.transition_speed : 0;

      // Build gallery as soon as all images are loaded or pulled from cache
      if(!window_loaded) {
        gallery_images.each(function(i){
          
          // First, see if image is already loaded (gallery being built after window loads or image is pulled from cache)
          if($(this).attr('complete')) {
            loaded_images++;
            
            if(loaded_images==image_count) {
              buildGallery();
              window_loaded;
            }
          } else {

            // Otherwise, increment counter once image loads
            $(this).load(function(){
              loaded_images++;
              //console.log(loaded_images + " : " + $(this).attr('src'));
              if(loaded_images==image_count && !($.browser.msie)){
                buildGallery();
                window_loaded;
              }
            });
          }
        });
        if($.browser.msie) {
          buildGallery();
          window_loaded;
        }
      } else {
        buildGallery();
      }
    });
  };

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

    transition_speed: 800,        //INT - duration of panel/frame transition (in milliseconds)
    transition_interval: 4000,      //INT - delay between panel/frame transitions (in milliseconds)
    easing: 'swing',          //STRING - easing method to use for animations (jQuery provides 'swing' or 'linear', more available with jQuery UI or Easing plugin)
    pause_on_hover: false,        //BOOLEAN - flag to pause slideshow when user hovers over the gallery


    show_panels: true,          //BOOLEAN - flag to show or hide panel portion of gallery
    panel_width: 600,          //INT - width of gallery panel (in pixels)
    panel_height: 400,          //INT - height of gallery panel (in pixels)
    panel_animation: 'crossfade',    //STRING - animation method for panel transitions (crossfade,fade,slide,zoomOut,none)
    overlay_opacity: 0.7,        //FLOAT - transparency for panel overlay (1.0 = opaque, 0.0 = transparent)
    overlay_position: 'bottom',      //STRING - position of panel overlay (bottom, top)
    panel_scale: 'crop',        //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)
    show_panel_nav: true,        //BOOLEAN - flag to show or hide panel navigation buttons
    show_overlays: false,        //BOOLEAN - flag to show or hide panel overlays


    show_filmstrip: true,        //BOOLEAN - flag to show or hide filmstrip portion of gallery
    frame_width: 60,          //INT - width of filmstrip frames (in pixels)
    frame_height: 40,          //INT - width of filmstrip frames (in pixels)
    start_frame: 1,            //INT - index of panel/frame to show first when gallery loads
    filmstrip_size: 3,          //INT - number of frames to show in filmstrip-only gallery
    frame_opacity: 0.3,          //FLOAT - transparency of non-active frames (1.0 = opaque, 0.0 = transparent)
    filmstrip_style: 'scroll',      //STRING - type of filmstrip to use (scroll, show all)
    filmstrip_position: 'bottom',    //STRING - position of filmstrip within gallery (bottom, top, left, right)
    show_filmstrip_nav: true,      //BOOLEAN - flag indicating whether to display navigation buttons
    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


    pointer_size: 8,          //INT - Height of frame pointer (in pixels)
    animate_pointer: true        //BOOLEAN - flag to animate pointer or move it instantly to target frame

  };
})(jQuery);