// Speed of the automatic slideshow
var slideshowSpeed = 10000;

jQuery.preLoadImages("/content/" + photos[0].image);

jQuery(document).ready(function($) {
	jQuery.preLoadImages("/img/control_pause_f2.png","/img/control_back_f2.png","/img/control_forward_f2.png","/img/control_play_f2.png","/img/control_play.png");	
	
	$('img#cs_btn_control').hover(function() {
	$(this).attr("src","/img/control_pause_f2.png");
		}, function() {
	$(this).attr("src","/img/control_pause.png");
	});
		
	// Backwards navigation
	$("#cs_back").click(function() {
		//stopAnimation();
		navigate("back");
	});
	
	$('img#cs_btn_back').hover(function() {
	$(this).attr("src","/img/control_back_f2.png");
		}, function() {
	$(this).attr("src","/img/control_back.png");
	});
	
	// Forward navigation
	$("#cs_next").click(function() {
		//stopAnimation();
		navigate("next");
	});
	
	$('img#cs_btn_foward').hover(function() {
	$(this).attr("src","/img/control_forward_f2.png");
		}, function() {
	$(this).attr("src","/img/control_forward.png");
	});
	
	var interval;
	$("#cs_control").toggle(function(){
		stopAnimation();
	}, function() {
		// Change the background image to "pause"
		//$(this).css({ "background-image" : "url(img/btn_pause.png)" });
		$('img#cs_btn_control').attr("src","/img/control_pause.png");
		
	$('img#cs_btn_control').hover(function() {
	$(this).attr("src","/img/control_pause_f2.png");
		}, function() {
	$(this).attr("src","/img/control_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);
		
		if (currentImg < photos.length) {
			jQuery.preLoadImages("/content/" + photos[currentImg].image);
		}
		
	};
	
	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
		$("#cs_slide" + activeContainer).css({
			"background-image" : "url(/content/" + photoObject.image + ")",
			"display" : "block",
			"z-index" : currentZindex
		});
		
		// Hide the header text
		$("#cs_caption").css({"display" : "none"});
		
		
		// Set the new header text
		$("#cs_caption_header").html(photoObject.firstline);
		$("#cs_caption_body")
			.attr("href", photoObject.url)
			.html(photoObject.secondline);
		$("#cs_pictureduri")
			.attr("href", photoObject.url)
			.html(photoObject.title);
		
		
		// Fade out the current container
		// and display the header text when animation is complete
		$("#cs_slide" + currentContainer).fadeOut(function() {
			setTimeout(function() {
				$("#cs_caption").fadeIn(function() {});				
				//$("#cs_caption").css({"display" : "block"});
				animating = false;
			}, 200);
		});
	};
	
	var stopAnimation = function() {
		// Change the background image to "play"
		//$("#cs_control").css({ "background-image" : "url(img/btn_play.png)" });
		$('img#cs_btn_control').attr("src","/img/control_play.png");
		$('img#cs_btn_control').hover(function() {
	$(this).attr("src","/img/control_play_f2.png");
		}, function() {
	$(this).attr("src","/img/control_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);
	
});