$(document).ready(function(){
      
      $('.ngg-galleryoverview').addClass('gallery_demo'); // adds new class name to maintain degradability
      
      $('ul.gallery_demo').galleria({
         history   : true, // activates the history object for bookmarking, back-button etc.
         clickNext : true, // helper for making the image clickable
         insert    : '#main_image', // the containing selector for our main image
         onImage   : function(image,caption,thumb) { // let's add some image effects for demonstration purposes

            // fade in the image & caption
            image.css('display','none').fadeIn(1000);
            caption.css('display','none').fadeIn(1000);
            
            // fetch the thumbnail container
            var _li = thumb.parents('li');
            
            // fade out inactive thumbnail
            _li.siblings().children('img.selected').fadeTo(500,0.3);
            
            // fade in active thumbnail
            thumb.fadeTo('fast',1).addClass('selected');
            
            // add a title for the clickable image
            image.attr('title','Next image >>');
         },
         onThumb : function(thumb) { // thumbnail effects goes here
            
            // fetch the thumbnail container
            var _li = thumb.parents('li');
            
            // if thumbnail is active, fade all the way.
            var _fadeTo = _li.is('.active') ? '1' : '0.3';
            
            // fade in the thumbnail when finnished loading
            thumb.css({display:'none',opacity:_fadeTo}).fadeIn(1500);
            
            // hover effects
            thumb.hover(
               function() { thumb.fadeTo('fast',1); },
               function() { _li.not('.active').children('img').fadeTo('fast',0.3); } // don't fade out if the parent is active
            )
         }
      });

   //loading first image
      
      var first_im = $('ul.gallery_demo li:first-child').children(':first');
      var first_im_src = first_im.attr('src');
      if(first_im_src != undefined){
         location.href = location.href+"#"+first_im_src;
      }

   });