$(document).ready(function()  {  
		
		$('.gallery_demo_unstyled').addClass('gallery_demo'); // adds new class name to maintain degradability
		
		$('ul.gallery_demo').galleria(  {  
			history   : false, // activates the history object for bookmarking, back-button etc.
			clickNext : false, // 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);

				// 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');
				
				// Hide all captions then fade in the active caption
				$('.galleria li').each( function(i) {
					if ($(this).is(".active"))
					{
						$("div.captions p").css("display",'none');
						$("div.captions p:eq("+i+")").fadeIn(1000);
					}
				});
				
				// Make a link round the main image to the full size image in the "big" directory.
				stringIndex = thumb.attr('src').lastIndexOf("/");
				big_image_url = thumb.attr('src').slice(0,stringIndex)+"/big/"+thumb.attr('src').slice(stringIndex+1);
				image.wrap($(document.createElement('a')).attr('href',big_image_url));
			},
			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 finished 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
				)
			}
		});
	});