/*
*  
*/

// Speed of the automatic slideshow
var slideshowSpeed = 20000;

// Variable to store the images we need to set as background
// which also includes some text and url's.
var photos = [ {
		"title" : "<center>WATCH VIDEO</center>",
		"image" : "features/heros/1_outdoorjournal.jpg",
		"url" : "/static.asp?htmltemplate=aboutus_vid.html",
		"firstline" : "ALL-WEATHER",
		"secondline" : "PAPER",
		"thirdline" : "Insure your data. Ensure your project.",
		"fourthline" : "<i>Rite in the Rain</i> is a patented, environmentally responsible, all-weather writing paper that sheds water and enables you to write anywhere, in any weather."
	}, {
		"title" : "<center>SEE STORY</center>",
		"image" : "features/heros/2_jeep.jpg",
		"url" : "/static.asp?htmltemplate=coolstories.html",
		"firstline" : " COOL STORY ",
		"secondline" : "No. 110",
		"thirdline" : "Sustainable Design in the rainforest.",
		"fourthline" : "We carry a camera, gps and a RITR notebook. The notebooks have never failed. We've dropped them in rivers, driven over them, covered them in mud and used them in pouring rain for days on end."
	}, {
		"title" : "<center>WATCH VIDEO</center>",
		"image" : "features/heros/3_comparison.jpg",
		"url" : "/static.asp?htmltemplate=aboutus_vid.html",
		"firstline" : "THE WET",
		"secondline" : "TEST",
		"thirdline" : "A SIDE BY SIDE COMPARISON",
		"fourthline" : "Watch <i>Rite in the Rain</i> put to the test after being dunked in a dish of water! <i>Rite in the Rain</i> stands tough while the plain paper just turns to soggy mush."
	}, {
		"title" : "<center>SEE STORY</center>",
		"image" : "features/heros/4_gabon.jpg",
		"url" : "/static.asp?htmltemplate=coolstories.html",
		"firstline" : "RITE IN THE RAIN",
		"secondline" : "IN GABON",
		"thirdline" : "Enduring the rainforests of Africa.",
		"fourthline" : "Rainforest means we often stay wet for days on end. Working in remote locations, we only get one chance to gather our information… <i>Rite in the Rain</i> notebooks have never failed."
	}
];



$(document).ready(function() {
		
	// Backwards navigation
	$("#back").click(function() {
		stopAnimation();
		navigate("back");
	});
	
	// Forward navigation
	$("#next").click(function() {
		stopAnimation();
		navigate("next");
	});
	

	// Link Navigation
	$("#spot-1").click(function() {
		stopAnimation();
		navigate("1");
	});
	$("#spot-2").click(function() {
		stopAnimation();
		navigate("2");
	});
	$("#spot-3").click(function() {
		stopAnimation();
		navigate("3");
	});
	$("#spot-4").click(function() {
		stopAnimation();
		navigate("4");
	});
	


	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 if(direction == "back"){
			currentImg--;
			if(currentImg == 0) {
				currentImg = photos.length;
			}
		} else {
			currentImg = direction;
		}
		
		// 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);
			
		$("#thirdline").html(photoObject.thirdline);
		$("#fourthline").html(photoObject.fourthline);
		
		$("#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);
	
});