(function($){
var $$;
$$ = $.fn.galleria = function($options) {
	if (!$$.hasCSS()) { return false; }
	$.historyInit($$.onPageLoad);
	var $defaults = {
		insert      : '.galleria_container',
		history     : true,
		clickNext   : true,
		onImage     : function(image,caption,thumb) {},
		onThumb     : function(thumb) {}
	};
	var $opts = $.extend($defaults, $options);
	for (var i in $opts) {
		if (i) {
			$.galleria[i]  = $opts[i];
		}
	}
	var _insert = ( $($opts.insert).is($opts.insert) ) ? 
		$($opts.insert) : 
		jQuery(document.createElement('div')).insertBefore(this);
	var _div = $(document.createElement('div')).addClass('galleria_wrapper');
	var _span = $(document.createElement('span')).addClass('caption');
	_insert.addClass('galleria_container').append(_div).append(_span);
	return this.each(function(){
		$(this).addClass('galleria');
		$(this).children('li').each(function(i) {
			var _container = $(this);
			var _o = $.meta ? $.extend({}, $opts, _container.data()) : $opts;
			_o.clickNext = $(this).is(':only-child') ? false : _o.clickNext;
			var _a = $(this).find('a').is('a') ? $(this).find('a') : false;
			var _img = $(this).children('img').css('display','none');
			var _src = _a ? _a.attr('href') : _img.attr('src');
			var _title = _a ? _a.attr('title') : _img.attr('title');      
			var _loader = new Image();
			if (_o.history && (window.location.hash && window.location.hash.replace(/\#/,'') == _src)) {
				_container.siblings('.active').removeClass('active');
				_container.addClass('active');
			}
			$(_loader).load(function () {
				$(this).attr('alt',_img.attr('alt'));
				var _thumb = _a ? 
					_a.find('img').addClass('thumb noscale').css('display','none') :
					_img.clone(true).addClass('thumb').css('display','none');
				if (_a) { _a.replaceWith(_thumb); }
				if (!_thumb.hasClass('noscale')) {
					var w = Math.ceil( _img.width() / _img.height() * _container.height() );
					var h = Math.ceil( _img.height() / _img.width() * _container.width() );
					if (w < h) {
						_thumb.css({ height: 'auto', width: _container.width(), marginTop: -(h-_container.height())/2 });
					} else {
						_thumb.css({ width: 'auto', height: _container.height(), marginLeft: -(w-_container.width())/2 });
					}
				} else {
					window.setTimeout(function() {
						_thumb.css({
							marginLeft: -( _thumb.width() - _container.width() )/2, 
							marginTop:  -( _thumb.height() - _container.height() )/2
						});
					}, 1);
				}
				_thumb.attr('rel',_src);
				_thumb.attr('title',_title);
				_thumb.click(function() {
					$.galleria.activate(_src);
				});
				_thumb.hover(
					function() { $(this).addClass('hover'); },
					function() { $(this).removeClass('hover'); }
				);
				_container.hover(
					function() { _container.addClass('hover'); },
					function() { _container.removeClass('hover'); }
				);
				_container.prepend(_thumb);
				_thumb.css('display','block');
				_o.onThumb(jQuery(_thumb));
				if (_container.hasClass('active')) {
					$.galleria.activate(_src);
				}
				_img.remove();
				
			}).error(function () {
			    _container.html('<span class="error" style="color:red">Error loading image: '+_src+'</span>');
			}).attr('src', _src);
		});
	});
};
$$.hasCSS = function()  {
	$('body').append(
		$(document.createElement('div')).attr('id','css_test').css({ width:'1px', height:'1px', display:'none' })
	);
	var _v = ($('#css_test').width() != 1) ? false : true;
	$('#css_test').remove();
	return _v;
};
$$.onPageLoad = function(_src) {	
	var _wrapper = $('.galleria_wrapper');
	var _thumb = $('.galleria img[rel="'+_src+'"]');
	if (_src) {
		if ($.galleria.history) {
			window.location = window.location.href.replace(/\#.*/,'') + '#' + _src;
		}
		_thumb.parents('li').siblings('.active').removeClass('active');
		_thumb.parents('li').addClass('active');
		var _img   = $(new Image()).attr('src',_src).addClass('replaced');
		_wrapper.empty().append(_img);
		_wrapper.siblings('.caption').text(_thumb.attr('title'));
		$.galleria.onImage(_img,_wrapper.siblings('.caption'),_thumb);
		if($.galleria.clickNext) {
			_img.css('cursor','pointer').click(function() { $.galleria.next(); });
		}
	} else {
		_wrapper.siblings().andSelf().empty();
		$('.galleria li.active').removeClass('active');
	}
	$.galleria.current = _src;
};
$.extend({galleria : {
	current : '',
	onImage : function(){},
	activate : function(_src) { 
		if ($.galleria.history) {
			$.historyLoad(_src);
		} else {
			$$.onPageLoad(_src);
		}
	},
	next : function() {
		var _next = $($$.nextSelector($('.galleria img[rel="'+$.galleria.current+'"]').parents('li'))).find('img').attr('rel');
		$.galleria.activate(_next);
	},
	prev : function() {
		var _prev = $($$.previousSelector($('.galleria img[rel="'+$.galleria.current+'"]').parents('li'))).find('img').attr('rel');
		$.galleria.activate(_prev);
	}
}
});

})(jQuery);
jQuery.extend({
	historyCurrentHash: undefined,
	historyCallback: undefined,
	historyInit: function(callback){
		jQuery.historyCallback = callback;
		var current_hash = location.hash;
		
		jQuery.historyCurrentHash = current_hash;
		if(jQuery.browser.msie) {
			if (jQuery.historyCurrentHash === '') {
			jQuery.historyCurrentHash = '#';
		}
			$("body").prepend('<iframe id="jQuery_history" style="display: none;"></iframe>');
			var ihistory = $("#jQuery_history")[0];
			var iframe = ihistory.contentWindow.document;
			iframe.open();
			iframe.close();
			iframe.location.hash = current_hash;
		}
		else if ($.browser.safari) {
			jQuery.historyBackStack = [];
			jQuery.historyBackStack.length = history.length;
			jQuery.historyForwardStack = [];
			jQuery.isFirst = true;
		}
		jQuery.historyCallback(current_hash.replace(/^#/, ''));
		setInterval(jQuery.historyCheck, 100);
	},
	historyAddHistory: function(hash) {
		jQuery.historyBackStack.push(hash);
		jQuery.historyForwardStack.length = 0;
		this.isFirst = true;
	},
	
	historyCheck: function(){
		if(jQuery.browser.msie) {
			var ihistory = $("#jQuery_history")[0];
			var iframe = ihistory.contentDocument || ihistory.contentWindow.document;
			var current_hash = iframe.location.hash;
			if(current_hash != jQuery.historyCurrentHash) {
				location.hash = current_hash;
				jQuery.historyCurrentHash = current_hash;
				jQuery.historyCallback(current_hash.replace(/^#/, ''));
				
			}
		} else if ($.browser.safari) {
			if (!jQuery.dontCheck) {
				var historyDelta = history.length - jQuery.historyBackStack.length;
				if (historyDelta) {
					jQuery.isFirst = false;
					var i;
					if (historyDelta < 0) {
						for (i = 0; i < Math.abs(historyDelta); i++) {
							jQuery.historyForwardStack.unshift(jQuery.historyBackStack.pop());
						}
					} else {
						for (i = 0; i < historyDelta; i++) {
							jQuery.historyBackStack.push(jQuery.historyForwardStack.shift());
						}
					}
					var cachedHash = jQuery.historyBackStack[jQuery.historyBackStack.length - 1];
					if (cachedHash !== undefined) {
						jQuery.historyCurrentHash = location.hash;
						jQuery.historyCallback(cachedHash);
					}
				} else if (jQuery.historyBackStack[jQuery.historyBackStack.length - 1] === undefined && !jQuery.isFirst) {
					if (document.URL.indexOf('#') >= 0) {
						jQuery.historyCallback(document.URL.split('#')[1]);
					} else {
						current_hash = location.hash;
						jQuery.historyCallback('');
					}
					jQuery.isFirst = true;
				}
			}
		} else {
			current_hash = location.hash;
			if(current_hash != jQuery.historyCurrentHash) {
				jQuery.historyCurrentHash = current_hash;
				jQuery.historyCallback(current_hash.replace(/^#/, ''));
			}
		}
	},
	historyLoad: function(hash){
		var newhash;
		if (jQuery.browser.safari) {
			newhash = hash;
		}
		else {
			newhash = '#' + hash;
			location.hash = newhash;
		}
		jQuery.historyCurrentHash = newhash;
		if(jQuery.browser.msie) {
			var ihistory = $("#jQuery_history")[0];
			var iframe = ihistory.contentWindow.document;
			iframe.open();
			iframe.close();
			iframe.location.hash = newhash;
			jQuery.historyCallback(hash);
		}
		else if (jQuery.browser.safari) {
			jQuery.dontCheck = true;
			this.historyAddHistory(hash);
			var fn = function() {jQuery.dontCheck = false;};
			window.setTimeout(fn, 200);
			jQuery.historyCallback(hash);
			location.hash = newhash;
		}
		else {
		  jQuery.historyCallback(hash);
		}
	}
});
jQuery(function($) {	
	$('ul.thumb').galleria({
		history   : false,
		clickNext : false,
		insert    : undefined,
		onImage   : function() { $('.nav').css('display','none'); }
	});
});