(function($){$.fn.adGallery=function(options){var defaults={loader_image:"http://www.travelagent7.co.uk/loader.gif",start_at_index:0,description_wrapper:false,thumb_opacity:0.7,animate_first_image:false,animation_speed:400,width:false,height:false,display_next_and_prev:true,display_back_and_forward:true,scroll_jump:0,slideshow:{enable:true,autostart:false,speed:3000,start_label:"Start",stop_label:"Stop",stop_on_scroll:true,countdown_prefix:"(",countdown_sufix:")",onStart:false,onStop:false},effect:"resize",enable_keyboard_move:true,cycle:true,callbacks:{init:false,afterImageVisible:false,beforeImageVisible:false}};var settings=$.extend(false,defaults,options);if(options&&options.slideshow){settings.slideshow=$.extend(false,defaults.slideshow,options.slideshow)}if(!settings.slideshow.enable){settings.slideshow.autostart=false}var galleries=[];$(this).each(function(){var gallery=new AdGallery(this,settings);galleries[galleries.length]=gallery});return galleries};function VerticalSlideAnimation(img_container,direction,desc){var current_top=parseInt(img_container.css("top"),10);if(direction=="left"){var old_image_top="-"+this.image_wrapper_height+"px";img_container.css("top",this.image_wrapper_height+"px")}else{var old_image_top=this.image_wrapper_height+"px";img_container.css("top","-"+this.image_wrapper_height+"px")}if(desc){desc.css("bottom","-"+desc[0].offsetHeight+"px");desc.animate({bottom:0},this.settings.animation_speed*2)}if(this.current_description){this.current_description.animate({bottom:"-"+this.current_description[0].offsetHeight+"px"},this.settings.animation_speed*2)}return{old_image:{top:old_image_top},new_image:{top:current_top}}}function HorizontalSlideAnimation(img_container,direction,desc){var current_left=parseInt(img_container.css("left"),10);if(direction=="left"){var old_image_left="-"+this.image_wrapper_width+"px";img_container.css("left",this.image_wrapper_width+"px")}else{var old_image_left=this.image_wrapper_width+"px";img_container.css("left","-"+this.image_wrapper_width+"px")}if(desc){desc.css("bottom","-"+desc[0].offsetHeight+"px");desc.animate({bottom:0},this.settings.animation_speed*2)}if(this.current_description){this.current_description.animate({bottom:"-"+this.current_description[0].offsetHeight+"px"},this.settings.animation_speed*2)}return{old_image:{left:old_image_left},new_image:{left:current_left}}}function ResizeAnimation(img_container,direction,desc){var image_width=img_container.width();var image_height=img_container.height();var current_left=parseInt(img_container.css("left"),10);var current_top=parseInt(img_container.css("top"),10);img_container.css({width:0,height:0,top:this.image_wrapper_height/2,left:this.image_wrapper_width/2});return{old_image:{width:0,height:0,top:this.image_wrapper_height/2,left:this.image_wrapper_width/2},new_image:{width:image_width,height:image_height,top:current_top,left:current_left}}}function FadeAnimation(img_container,direction,desc){img_container.css("opacity",0);return{old_image:{opacity:0},new_image:{opacity:1}}}function NoneAnimation(img_container,direction,desc){img_container.css("opacity",0);return{old_image:{opacity:0},new_image:{opacity:1},speed:0}}function AdGallery(wrapper,settings){this.init(wrapper,settings)}AdGallery.prototype={wrapper:false,image_wrapper:false,gallery_info:false,nav:false,loader:false,preloads:false,thumbs_wrapper:false,scroll_back:false,scroll_forward:false,next_link:false,prev_link:false,slideshow:false,image_wrapper_width:0,image_wrapper_height:0,current_index:0,current_image:false,current_description:false,nav_display_width:0,settings:false,images:false,in_transition:false,animations:false,init:function(wrapper,settings){var context=this;this.wrapper=$(wrapper);this.settings=settings;this.setupElements();this.setupAnimations();if(this.settings.width){this.image_wrapper_width=this.settings.width;this.image_wrapper.width(this.settings.width);this.wrapper.width(this.settings.width)}else{this.image_wrapper_width=this.image_wrapper.width()}if(this.settings.height){this.image_wrapper_height=this.settings.height;this.image_wrapper.height(this.settings.height)}else{this.image_wrapper_height=this.image_wrapper.height()}this.nav_display_width=this.nav.width();this.current_index=0;this.current_image=false;this.current_description=false;this.in_transition=false;this.findImages();if(this.settings.display_next_and_prev){this.initNextAndPrev()}var nextimage_callback=function(callback){return context.nextImage(callback)};this.slideshow=new AdGallerySlideshow(nextimage_callback,this.settings.slideshow);this.controls.append(this.slideshow.create());if(this.settings.slideshow.enable){this.slideshow.enable()}else{this.slideshow.disable()}if(this.settings.display_back_and_forward){this.initBackAndForward()}if(this.settings.enable_keyboard_move){this.initKeyEvents()}var start_at=parseInt(this.settings.start_at_index,10);if(window.location.hash&&window.location.hash.indexOf("#ad-image")===0){start_at=window.location.hash.replace(/[^0-9]+/g,"");if((start_at*1)!=start_at){start_at=this.settings.start_at_index}}this.loading(true);this.showImage(start_at,function(){if(context.settings.slideshow.autostart){context.preloadImage(start_at+1);context.slideshow.start()}});this.fireCallback(this.settings.callbacks.init)},setupAnimations:function(){this.animations={"slide-vert":VerticalSlideAnimation,"slide-hori":HorizontalSlideAnimation,resize:ResizeAnimation,fade:FadeAnimation,none:NoneAnimation}},setupElements:function(){this.controls=this.wrapper.find(".ad-controls");this.gallery_info=$('<p class="ad-info"></p>');this.controls.append(this.gallery_info);this.image_wrapper=this.wrapper.find(".ad-image-wrapper");this.image_wrapper.empty();this.nav=this.wrapper.find(".ad-nav");this.thumbs_wrapper=this.nav.find(".ad-thumbs");this.preloads=$('<div class="ad-preloads"></div>');this.loader=$('<img class="ad-loader" src="'+this.settings.loader_image+'">');this.image_wrapper.append(this.loader);this.loader.hide();$(document.body).append(this.preloads)},loading:function(bool){if(bool){this.loader.show()}else{this.loader.hide()}},addAnimation:function(name,fn){if($.isFunction(fn)){this.animations[name]=fn}},findImages:function(){var context=this;this.images=[];var thumb_wrapper_width=0;var thumbs_loaded=0;var thumbs=this.thumbs_wrapper.find("a");var thumb_count=thumbs.length;if(this.settings.thumb_opacity<1){thumbs.find("img").css("opacity",this.settings.thumb_opacity)}thumbs.each(function(i){var link=$(this);var image_src=link.attr("href");var thumb=link.find("img");if(!context.isImageLoaded(thumb[0])){thumb.load(function(){thumb_wrapper_width+=this.parentNode.parentNode.offsetWidth;thumbs_loaded++})}else{thumb_wrapper_width+=thumb[0].parentNode.parentNode.offsetWidth;thumbs_loaded++}link.addClass("ad-thumb"+i);link.click(function(){context.showImage(i);context.slideshow.stop();return false}).hover(function(){if(!$(this).is(".ad-active")&&context.settings.thumb_opacity<1){$(this).find("img").fadeTo(300,1)}context.preloadImage(i)},function(){if(!$(this).is(".ad-active")&&context.settings.thumb_opacity<1){$(this).find("img").fadeTo(300,context.settings.thumb_opacity)}});var link=false;if(thumb.data("ad-link")){link=thumb.data("ad-link")}else{if(thumb.attr("longdesc")&&thumb.attr("longdesc").length){link=thumb.attr("longdesc")}}var desc=false;if(thumb.data("ad-desc")){desc=thumb.data("ad-desc")}else{if(thumb.attr("alt")&&thumb.attr("alt").length){desc=thumb.attr("alt")}}var title=false;if(thumb.data("ad-title")){title=thumb.data("ad-title")}else{if(thumb.attr("title")&&thumb.attr("title").length){title=thumb.attr("title")}}context.images[i]={thumb:thumb.attr("src"),image:image_src,error:false,preloaded:false,desc:desc,title:title,size:false,link:link}});var inter=setInterval(function(){if(thumb_count==thumbs_loaded){thumb_wrapper_width-=100;var list=context.nav.find(".ad-thumb-list");list.css("width",thumb_wrapper_width+"px");var i=1;var last_height=list.height();while(i<201){list.css("width",(thumb_wrapper_width+i)+"px");if(last_height!=list.height()){break}last_height=list.height();i++}clearInterval(inter)}},100)},initKeyEvents:function(){var context=this;$(document).keydown(function(e){if(e.keyCode==39){context.nextImage();context.slideshow.stop()}else{if(e.keyCode==37){context.prevImage();context.slideshow.stop()}}})},initNextAndPrev:function(){this.next_link=$('<div class="ad-next"><div class="ad-next-image"></div></div>');this.prev_link=$('<div class="ad-prev"><div class="ad-prev-image"></div></div>');this.image_wrapper.append(this.next_link);this.image_wrapper.append(this.prev_link);var context=this;this.prev_link.add(this.next_link).mouseover(function(e){$(this).css("height",context.image_wrapper_height);$(this).find("div").show()}).mouseout(function(e){$(this).find("div").hide()}).click(function(){if($(this).is(".ad-next")){context.nextImage();context.slideshow.stop()}else{context.prevImage();context.slideshow.stop()}}).find("div").css("opacity",0.7)},initBackAndForward:function(){var context=this;this.scroll_forward=$('<div class="ad-forward"></div>');this.scroll_back=$('<div class="ad-back"></div>');this.nav.append(this.scroll_forward);this.nav.prepend(this.scroll_back);var has_scrolled=0;var thumbs_scroll_interval=false;$(this.scroll_back).add(this.scroll_forward).click(function(){var width=context.nav_display_width-50;if(context.settings.scroll_jump>0){var width=context.settings.scroll_jump}if($(this).is(".ad-forward")){var left=context.thumbs_wrapper.scrollLeft()+width}else{var left=context.thumbs_wrapper.scrollLeft()-width}if(context.settings.slideshow.stop_on_scroll){context.slideshow.stop()}context.thumbs_wrapper.animate({scrollLeft:left+"px"});return false}).css("opacity",0.6).hover(function(){var direction="left";if($(this).is(".ad-forward")){direction="right"}thumbs_scroll_interval=setInterval(function(){has_scrolled++;if(has_scrolled>30&&context.settings.slideshow.stop_on_scroll){context.slideshow.stop()}var left=context.thumbs_wrapper.scrollLeft()+1;if(direction=="left"){left=context.thumbs_wrapper.scrollLeft()-1}context.thumbs_wrapper.scrollLeft(left)},10);$(this).css("opacity",1)},function(){has_scrolled=0;clearInterval(thumbs_scroll_interval);$(this).css("opacity",0.6)})},_afterShow:function(){this.gallery_info.html((this.current_index+1)+" / "+this.images.length);if(!this.settings.cycle){this.prev_link.show().css("height",this.image_wrapper_height);this.next_link.show().css("height",this.image_wrapper_height);if(this.current_index==(this.images.length-1)){this.next_link.hide()}if(this.current_index==0){this.prev_link.hide()}}this.fireCallback(this.settings.callbacks.afterImageVisible)},_getContainedImageSize:function(image_width,image_height){if(image_height>this.image_wrapper_height){var ratio=image_width/image_height;image_height=this.image_wrapper_height;image_width=this.image_wrapper_height*ratio}if(image_width>this.image_wrapper_width){var ratio=image_height/image_width;image_width=this.image_wrapper_width;image_height=this.image_wrapper_width*ratio}return{width:image_width,height:image_height}},_centerImage:function(img_container,image_width,image_height){img_container.css("top","0px");if(image_height<this.image_wrapper_height){var dif=this.image_wrapper_height-image_height;img_container.css("top",(dif/2)+"px")}img_container.css("left","0px");if(image_width<this.image_wrapper_width){var dif=this.image_wrapper_width-image_width;img_container.css("left",(dif/2)+"px")}},_getDescription:function(image){var desc=false;if(image.desc.length||image.title.length){var title="";if(image.title.length){title='<strong class="ad-description-title">'+image.title+"</strong>"}var desc="";if(image.desc.length){desc="<span>"+image.desc+"</span>"}desc=$('<p class="ad-image-description">'+title+desc+"</p>")}return desc},showImage:function(index,callback){if(this.images[index]&&!this.in_transition){var context=this;var image=this.images[index];this.in_transition=true;if(!image.preloaded){this.loading(true);this.preloadImage(index,function(){context.loading(false);context._showWhenLoaded(index,callback)})}else{this._showWhenLoaded(index,callback)}}},_showWhenLoaded:function(index,callback){if(this.images[index]){var context=this;var image=this.images[index];var img_container=$(document.createElement("div")).addClass("ad-image");var img=$(new Image()).attr("src",image.image);if(image.link){var link=$('<a href="'+image.link+'" target="_blank"></a>');link.append(img);img_container.append(link)}else{img_container.append(img)}this.image_wrapper.prepend(img_container);var size=this._getContainedImageSize(image.size.width,image.size.height);img.attr("width",size.width);img.attr("height",size.height);img_container.css({width:size.width+"px",height:size.height+"px"});this._centerImage(img_container,size.width,size.height);var desc=this._getDescription(image,img_container);if(desc){if(!this.settings.description_wrapper){img_container.append(desc);var width=size.width-parseInt(desc.css("padding-left"),10)-parseInt(desc.css("padding-right"),10);desc.css("width",width+"px")}else{this.settings.description_wrapper.append(desc)}}this.highLightThumb(this.nav.find(".ad-thumb"+index));var direction="right";if(this.current_index<index){direction="left"}this.fireCallback(this.settings.callbacks.beforeImageVisible);if(this.current_image||this.settings.animate_first_image){var animation_speed=this.settings.animation_speed;var easing="swing";var animation=this.animations[this.settings.effect].call(this,img_container,direction,desc);if(typeof animation.speed!="undefined"){animation_speed=animation.speed}if(typeof animation.easing!="undefined"){easing=animation.easing}if(this.current_image){var old_image=this.current_image;var old_description=this.current_description;old_image.animate(animation.old_image,animation_speed,easing,function(){old_image.remove();if(old_description){old_description.remove()}})}img_container.animate(animation.new_image,animation_speed,easing,function(){context.current_index=index;context.current_image=img_container;context.current_description=desc;context.in_transition=false;context._afterShow();context.fireCallback(callback)})}else{this.current_index=index;this.current_image=img_container;context.current_description=desc;this.in_transition=false;context._afterShow();this.fireCallback(callback)}}},nextIndex:function(){if(this.current_index==(this.images.length-1)){if(!this.settings.cycle){return false}var next=0}else{var next=this.current_index+1}return next},nextImage:function(callback){var next=this.nextIndex();if(next===false){return false}this.preloadImage(next+1);this.showImage(next,callback);return true},prevIndex:function(){if(this.current_index==0){if(!this.settings.cycle){return false}var prev=this.images.length-1}else{var prev=this.current_index-1}return prev},prevImage:function(callback){var prev=this.prevIndex();if(prev===false){return false}this.preloadImage(prev-1);this.showImage(prev,callback);return true},preloadAll:function(){var context=this;var i=0;function preloadNext(){if(i<context.images.length){i++;context.preloadImage(i,preloadNext)}}context.preloadImage(i,preloadNext)},preloadImage:function(index,callback){if(this.images[index]){var image=this.images[index];if(!this.images[index].preloaded){var img=$(new Image());img.attr("src",image.image);if(!this.isImageLoaded(img[0])){this.preloads.append(img);var context=this;img.load(function(){image.preloaded=true;image.size={width:this.width,height:this.height};context.fireCallback(callback)}).error(function(){image.error=true;image.preloaded=false;image.size=false})}else{image.preloaded=true;image.size={width:img[0].width,height:img[0].height};this.fireCallback(callback)}}else{this.fireCallback(callback)}}},isImageLoaded:function(img){if(typeof img.complete!="undefined"&&!img.complete){return false}if(typeof img.naturalWidth!="undefined"&&img.naturalWidth==0){return false}return true},highLightThumb:function(thumb){this.thumbs_wrapper.find(".ad-active").removeClass("ad-active");thumb.addClass("ad-active");if(this.settings.thumb_opacity<1){this.thumbs_wrapper.find("a:not(.ad-active) img").fadeTo(300,this.settings.thumb_opacity);thumb.find("img").fadeTo(300,1)}var left=thumb[0].parentNode.offsetLeft;left-=(this.nav_display_width/2)-(thumb[0].offsetWidth/2);this.thumbs_wrapper.animate({scrollLeft:left+"px"})},fireCallback:function(fn){if($.isFunction(fn)){fn.call(this)}}};function AdGallerySlideshow(nextimage_callback,settings){this.init(nextimage_callback,settings)}AdGallerySlideshow.prototype={start_link:false,stop_link:false,countdown:false,controls:false,settings:false,nextimage_callback:false,enabled:false,running:false,countdown_interval:false,init:function(nextimage_callback,settings){var context=this;this.nextimage_callback=nextimage_callback;this.settings=settings},create:function(){this.start_link=$('<span class="ad-slideshow-start">'+this.settings.start_label+"</span>");this.stop_link=$('<span class="ad-slideshow-stop">'+this.settings.stop_label+"</span>");this.countdown=$('<span class="ad-slideshow-countdown"></span>');this.controls=$('<div class="ad-slideshow-controls"></div>');this.controls.append(this.start_link).append(this.stop_link).append(this.countdown);this.countdown.hide();var context=this;this.start_link.click(function(){context.start()});this.stop_link.click(function(){context.stop()});$(document).keydown(function(e){if(e.keyCode==83){if(context.running){context.stop()}else{context.start()}}});return this.controls},disable:function(){this.enabled=false;this.stop();this.controls.hide()},enable:function(){this.enabled=true;this.controls.show()},toggle:function(){if(this.enabled){this.disable()}else{this.enable()}},start:function(){if(this.running||!this.enabled){return false}var context=this;this.running=true;this.controls.addClass("ad-slideshow-running");this._next();this.fireCallback(this.settings.onStart);return true},stop:function(){if(!this.running){return false}this.running=false;this.countdown.hide();this.controls.removeClass("ad-slideshow-running");clearInterval(this.countdown_interval);this.fireCallback(this.settings.onStop);return true},_next:function(){var context=this;var pre=this.settings.countdown_prefix;var su=this.settings.countdown_sufix;clearInterval(context.countdown_interval);this.countdown.show().html(pre+(this.settings.speed/1000)+su);var slide_timer=0;this.countdown_interval=setInterval(function(){slide_timer+=1000;if(slide_timer>=context.settings.speed){var whenNextIsShown=function(){if(context.running){context._next()}slide_timer=0};if(!context.nextimage_callback(whenNextIsShown)){context.stop()}slide_timer=0}var sec=parseInt(context.countdown.text().replace(/[^0-9]/g,""),10);sec--;if(sec>0){context.countdown.html(pre+sec+su)}},1000)},fireCallback:function(fn){if($.isFunction(fn)){fn.call(this)}}}})(jQuery);