// Speed of the automatic slideshow
var slideshowSpeed = 6000;

// Variable to store the images we need to set as background
// which also includes some text and url's.
var photos = [ {
		"title" : "",
		"image" : "006.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "im Hotel leben wie im eigenen",
		"secondline" : "Zuhause"
    }, {
		"title" : "",
		"image" : "043.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "der neue",
		"secondline" : "Wellnessbereich"
    }, {
		"title" : "",
		"image" : "007.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "gemütliche Atmosphäre",
		"secondline" : "genießen"
	}, {
		"title" : "",
		"image" : "008.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "Appartements mit eigenen",
		"secondline" : "Pantryküchen"
	}, {
		"title" : "",
		"image" : "017.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "zurückziehen, durchatmen und",
		"secondline" : "entspannen"
	}, {
		"title" : "",
		"image" : "009.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "moderne Hotel-Appartements",
		"secondline" : "erleben"
	}, {
		"title" : "",
		"image" : "019.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "mit Unterhaltung für jeden",
		"secondline" : "Geschmack"
	}, {
		"title" : "",
		"image" : "023.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "internationales Fernsehen",
		"secondline" : "HD digital"
	}, {
        "title" : "",
		"image" : "002.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "wohnen und arbeiten im",
		"secondline" : "Penthouse"
	}, {
		"title" : "",
		"image" : "001.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "gehobener Wohnkomfort mit",
		"secondline" : "Hotelservice"
	}, {
		"title" : "",
		"image" : "010.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "im Wellnessbad auch mit",
		"secondline" : "Tropendusche"
	}, {
		"title" : "",
		"image" : "018.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "Serviced Appartements die",
		"secondline" : "mehr bieten"
	}, {
		"title" : "",
		"image" : "003.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "im Wellnessbad mit",
		"secondline" : "Whirlpool"
	}, {
		"title" : "",
		"image" : "005.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "Classic-Appartements mit",
		"secondline" : "Komfort"
	}, {
		"title" : "",
		"image" : "020.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "mit flexiblen",
		"secondline" : "Lösungen"
	}, {
		"title" : "",
		"image" : "004.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "auch im Einzelzimmer mit",
		"secondline" : "Arbeitsplatz"
	}, {
		"title" : "",
		"image" : "011.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "Wohlfühlfaktor",
		"secondline" : "inklusive"
	}, {
		"title" : "",
		"image" : "012.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "ausschlafen bis zum",
		"secondline" : "Frühstück"
	}, {
		"title" : "",
		"image" : "013.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "jeden Morgen",
		"secondline" : "Frische"
	}, {
		"title" : "",
		"image" : "014.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "jeden Tag reichhaltige",
		"secondline" : "Auswahl"
	}, {
		"title" : "",
		"image" : "016.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "frischer Kaffee oder Tee",
		"secondline" : "ganz nach Wunsch"
	}, {
		"title" : "",
		"image" : "021.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "entspannen in der",
		"secondline" : "Sauna"
	}, {
		"title" : "",
		"image" : "044.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "Kräfte sammeln und",
		"secondline" : "erholen"
	}, {
		"title" : "",
		"image" : "047.jpg",
		"url" : "http://hotel-advantage.de/booking.php",
		"firstline" : "jeder Tag mit",
		"secondline" : "Fitness"
	}
];



$(document).ready(function() {
		
	// Backwards navigation
	$("#back").click(function() {
		stopAnimation();
		navigate("back");
	});
	
	// Forward navigation
	$("#next").click(function() {
		stopAnimation();
		navigate("next");
	});
	
	var interval;
	$("#control").toggle(function(){
		stopAnimation();
	}, function() {
		// Change the background image to "pause"
		$(this).css({ "background-image" : "url(images/btn_pause.png)" });
		
		// Show the next image
		navigate("next");
		
		// Start playing the animation
		interval = setInterval(function() {
			navigate("next");
		}, slideshowSpeed);
	});
	
	
	var activeContainer = 1;	
	var currentImg = 0;
	var animating = false;
	var navigate = function(direction) {
		// Check if no animation is running. If it is, prevent the action
		if(animating) {
			return;
		}
		
		// Check which current image we need to show
		if(direction == "next") {
			currentImg++;
			if(currentImg == photos.length + 1) {
				currentImg = 1;
			}
		} else {
			currentImg--;
			if(currentImg == 0) {
				currentImg = photos.length;
			}
		}
		
		// Check which container we need to use
		var currentContainer = activeContainer;
		if(activeContainer == 1) {
			activeContainer = 2;
		} else {
			activeContainer = 1;
		}
		
		showImage(photos[currentImg - 1], currentContainer, activeContainer);
		
	};
	
	var currentZindex = -1;
	var showImage = function(photoObject, currentContainer, activeContainer) {
		animating = true;
		
		// Make sure the new container is always on the background
		currentZindex--;
		
		// Set the background image of the new active container
		$("#headerimg" + activeContainer).css({
			"background-image" : "url(images/" + photoObject.image + ")",
			"display" : "block",
			"z-index" : currentZindex
		});
		
		// Hide the header text
		$("#headertxt").css({"display" : "none"});
		
		// Set the new header text
		$("#firstline").html(photoObject.firstline);
		$("#secondline")
			.attr("href", photoObject.url)
			.html(photoObject.secondline);
		$("#pictureduri")
			.attr("href", photoObject.url)
			.html(photoObject.title);
		
		
		// Fade out the current container
		// and display the header text when animation is complete
		$("#headerimg" + currentContainer).fadeOut(function() {
			setTimeout(function() {
				$("#headertxt").css({"display" : "block"});
				animating = false;
			}, 500);
		});
	};
	
	var stopAnimation = function() {
		// Change the background image to "play"
		$("#control").css({ "background-image" : "url(images/btn_play.png)" });
		
		// Clear the interval
		clearInterval(interval);
	};
	
	// We should statically set the first image
	navigate("next");
	
	// Start playing the animation
	interval = setInterval(function() {
		navigate("next");
	}, slideshowSpeed);
	
});