$(function() {
		
		  //remove js-disabled class
			$("#viewer").removeClass("js-disabled");
		
		  //create new container for images
			$("<div>").attr("id", "container").css({ position:"absolute"}).width($(".wrapper").length * 60).height(60).appendTo("div#viewer");
		  		
			($("div#controls").length == 0) ? $("<div>").attr("id", "controls").appendTo("div#imageScroller").css({ opacity:0.7 }).slideDown("slow") : null ;
			($("a#rtl").length == 0) ? $("<a>").attr({ id:"rtl", href:"#", title:"rtl" }).appendTo("#controls") : null ;
			($("a#ltr").length == 0) ? $("<a>").attr({ id:"ltr", href:"#", title:"ltr" }).appendTo("#controls") : null ;
			//add images to container
			$(".wrapper").each(function() {
				$(this).appendTo("div#container");
			});
			
			//work out duration of anim based on number of images (1 second for each image)
			var duration = $(".wrapper").length * 3000;
			
			//store speed for later (distance / time)
			var speed = (parseInt($("div#container").width()) + parseInt($("div#viewer").width())) / duration;
							
			//set direction
			var direction = "rtl";
			
			//set initial position and class based on direction
			(direction == "rtl") ? $("div#container").css("left", $("div#viewer").width()).addClass("rtl") : $("div#container").css("left", 0 - $("div#container").width()).addClass("ltr") ;
			
			//animator function
			var animator = function(el, time, dir) {
			 
				//which direction to scroll
				if(dir == "rtl") {
				  
				  //add direction class
					el.removeClass("ltr").addClass("rtl");
				 		
					//animate the el
					el.animate({ left:"-" + el.width() + "px" }, time, "linear", function() {
											
						//reset container position
						$(this).css({ left:$("div#imageScroller").width(), right:"" });
						
						//restart animation
						animator($(this), duration, "rtl");
						
						
						//hide controls if visible
						($("p#title").length > 0) ? $("p#title").slideUp("slow").remove() : null ;			
										
					});
				} else {
				
				  //add direction class
					el.removeClass("rtl").addClass("ltr");
				
					//animate the el
					el.animate({ left:$("div#viewer").width() + "px" }, time, "linear", function() {
											
						//reset container position
						$(this).css({ left:0 - $("div#container").width() });
						
						//restart animation
						animator($(this), duration, "ltr");
						
						//hide controls if visible
						($("p#title").length > 0) ? $("p#title").slideUp("slow").remove() : null ;			
					});
				}
			}
			
			//start anim
			animator($("div#container"), duration, direction);
			
			//pause on mouseover
			$("a.wrapper").live("mouseover", function() {
			  
				//stop anim
				$("div#container").stop(true);
				
				//show controls
				($("div#controls").length == 0) ? $("<div>").attr("id", "controls").appendTo("div#imageScroller").css({ opacity:0.7 }).slideDown("slow") : null ;
				($("a#rtl").length == 0) ? $("<a>").attr({ id:"rtl", href:"#", title:"rtl" }).appendTo("#controls") : null ;
				($("a#ltr").length == 0) ? $("<a>").attr({ id:"ltr", href:"#", title:"ltr" }).appendTo("#controls") : null ;
				
				//variable to hold trigger element
				var title = $(this).attr("title");
				
				//add p if doesn't exist, update it if it does
				($("p#title").length == 0) ? $("<p>").attr("id", "title").text(title).appendTo("div#controls") : $("p#title").text(title) ;
			});
			
			//restart on mouseout
			$("a.wrapper").live("mouseout", function(e) {
			  
				//hide controls if not hovering on them
				(e.relatedTarget == null) ? null : (e.relatedTarget.id != "title") ? $("p#title").slideUp("slow").remove() : null ;
				
				//work out total travel distance
				var totalDistance = parseInt($("div#container").width()) + parseInt($("div#viewer").width());
													
				//work out distance left to travel
				var distanceLeft = ($("div#container").hasClass("ltr")) ? totalDistance - (parseInt($("div#container").css("left")) + parseInt($("div#container").width())) : totalDistance - (parseInt($("div#viewer").width()) - (parseInt($("div#container").css("left")))) ;
				
				//new duration is distance left / speed)
				var newDuration = distanceLeft / speed;
			
				//restart anim
				animator($("div#container"), newDuration, $("div#container").attr("class"));

			});
											
			//handler for ltr button
			$("#ltr").live("click", function() {
			 					
				//stop anim
				$("div#container").stop(true);
			
				//swap class names
				$("div#container").removeClass("rtl").addClass("ltr");
									
				//work out total travel distance
				var totalDistance = parseInt($("div#container").width()) + parseInt($("div#viewer").width());
				
				//work out remaining distance
				var distanceLeft = totalDistance - (parseInt($("div#container").css("left")) + parseInt($("div#container").width()));
				
				//new duration is distance left / speed)
				var newDuration = distanceLeft / speed;
				
				//restart anim
				animator($("div#container"), newDuration, "ltr");
			});
			
			//handler for rtl button
			$("#rtl").live("click", function() {
									
				//stop anim
				$("div#container").stop(true);
				
				//swap class names
				$("div#container").removeClass("ltr").addClass("rtl");
				
				//work out total travel distance
				var totalDistance = parseInt($("div#container").width()) + parseInt($("div#viewer").width());

				//work out remaining distance
				var distanceLeft = totalDistance - (parseInt($("div#viewer").width()) - (parseInt($("div#container").css("left"))));
				
				//new duration is distance left / speed)
				var newDuration = distanceLeft / speed;
			
				//restart anim
				animator($("div#container"), newDuration, "rtl");
			});
		});