$(function() {
			
	//remove js-disabled class
		$("#viewer").removeClass("js-disabled");
			
	//create new container for images
		$("<div>").attr("id", "container").css({ position:"absolute"}).width($(".wrapper").length * 170).height(170).appendTo("div#viewer");
			  	
		//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 * 5000;
				
		//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
					($("div#controls").length > 0) ? $("div#controls").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
					($("div#controls").length > 0) ? $("div#controls").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) ? $("<div>").attr("id", "controls").appendTo("div#outerContainer").css({ opacity:0.7 }).slideDown("slow") : null ;
			($("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 != "controls") ? $("div#controls").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");
		});
	});