// Speed of the automatic slideshow
var slideshowSpeed = 5000;

// Variable to store the images we need to set as background
// which also includes some text and url's.
var photos = [

                {
                    "title" : "",
                    "image" : "http://images.catholic.org/carousel/news/2015032347father_norm_easter_banner_1200__x550.jpg",
                    "url" : "/carouselClicks.php?t=%A8%95%1CT%28q%ABm%EF%EF%CB%81K%09d%D4",
                    "firstline" : "",
                    "secondline" : ""
                },
                {
                    "title" : "",
                    "image" : "http://images.catholic.org/carousel/news/20141233461200.jpg",
                    "url" : "/carouselClicks.php?t=%DF%8E%C1%EE%0A%16S%0F%FDu%9B%BD%1C%5Dp%D4",
                    "firstline" : "",
                    "secondline" : ""
                },
                {
                    "title" : "",
                    "image" : "http://images.catholic.org/carousel/news/201502534141-catholic-faith-1200x550.gif",
                    "url" : "/carouselClicks.php?t=%25%29%AE%9D-%ED%85%1D%DCE%22br%04%BB%C4",
                    "firstline" : "",
                    "secondline" : ""
                },
                {
                    "title" : "",
                    "image" : "http://images.catholic.org/carousel/news/2014070034serve-1200x550-rev2.jpg",
                    "url" : "/carouselClicks.php?t=Bx%A0%D4%1B%F6%09%9F%A8%DB%9F%2CS%177%DE",
                    "firstline" : "",
                    "secondline" : ""
                },
                {
                    "title" : "",
                    "image" : "http://images.catholic.org/carousel/news/2014101234carb-trappistcaskets-carouselad-story-1200x550cross.jpg",
                    "url" : "/carouselClicks.php?t=%81Srg%16%3D%F1%0C%D7e%B29%10%B4%B4%89",
                    "firstline" : "",
                    "secondline" : ""
                },
                {
                    "title" : "",
                    "image" : "http://images.catholic.org/carousel/news/2014095923bible-ad_1200x550.jpg",
                    "url" : "/carouselClicks.php?t=%2C%0D%27%24%96%CF%3A%DBo%B8%0E%C3%AE%F1u%7F",
                    "firstline" : "",
                    "secondline" : ""
                },
                {
                    "title" : "",
                    "image" : "http://images.catholic.org/carousel/news/20141032141200.jpg",
                    "url" : "/carouselClicks.php?t=%0C%D2%1E-%7E%BB%E8%FA%8D%A4%B5%FE%2Aa%40%5E",
                    "firstline" : "",
                    "secondline" : ""
                },
                {
                    "title" : "",
                    "image" : "http://images.catholic.org/carousel/news/2015022322weisscarousel.jpg",
                    "url" : "/carouselClicks.php?t=%7C%29%C0%E8q%A1%1D%F9%0Dr%5C%DB%B8%1Fq%D2",
                    "firstline" : "",
                    "secondline" : ""
                },
                {
                    "title" : "",
                    "image" : "http://images.catholic.org/carousel/news/20150141281200x550.jpg",
                    "url" : "/carouselClicks.php?t=d%C0%DFH%AB%C4%18%5B+%B1J%8A%A5w%C4G",
                    "firstline" : "",
                    "secondline" : ""
                }
];



$(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/carousel-pause1.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 = 20000;
	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(" + photoObject.image + ")",
			"border" : "0px solid #ccc",
                        "cursor" : "pointer",
			"display" : "block",
			"z-index" : currentZindex
		});
		$("div#headerimg" + activeContainer).click(function(){ window.location=photoObject.url; });

		// 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/carousel-play1.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);
	
});