// 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" : "More product info >>",
		"image" : "banner/banner44.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgnws&id=374",
		"firstline" : "",
		"secondline" : ""
	},{
		"title" : "More product info >>",
		"image" : "banner/banner42.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgnws&id=373",
		"firstline" : "",
		"secondline" : ""
	},{
		"title" : "Click here for more >>",
		"image" : "banner/banner41.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgnws&id=372",
		"firstline" : "",
		"secondline" : ""
	},{
		"title" : "Click here for more >>",
		"image" : "banner/banner40.png",
		"url"	: "http://www.buffalo-technology.com/technology/our-technology/web-access/",
		"firstline" : "",
		"secondline" : ""
	},{
		"title" : "Click here for promo details >>",
		"image" : "banner/banner35.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgpromo&id=506",
		"firstline" : "",
		"secondline" : ""
	},{
		
		"title" : "Click here for promo details >>",
		"image" : "banner/banner37.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgpromo&id=507",
		"firstline" : "",
		"secondline" : ""
	},{
		"title" : "Click here for promo details >>",
		"image" : "banner/banner38.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgpromo&id=508",
		"firstline" : "",
		"secondline" : ""
	},{
		"title" : "Click here for more info >>",
		"image" : "banner/banner34.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgevnt&id=307",
		"firstline" : "",
		"secondline" : ""
	},{

		"title" : "Click here for product specs >>",
		"image" : "banner/banner33.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgnws&id=366",
		"firstline" : "",
		"secondline" : ""
	},{

		"title" : "Show more >>",
		"image" : "banner/banner32.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgnws&id=365",
		"firstline" : "",
		"secondline" : ""
	},{
		"title" : "Click here for more info >>",
		"image" : "banner/banner27.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgevnt&id=304",
		"firstline" : "",
		"secondline" : ""
	},{

		"title" : "Click here for more info >>",
		"image" : "banner/banner26.png",
		"url"	: "http://www.msi-ecs.com.ph/xlinks/reviews/iOmega/072910/Iomega-vClone.pdf",
		"firstline" : "",
		"secondline" : ""
	},{

		"title" : "Click here for Promo details >>",
		"image" : "banner/banner25.png",
		"url"	: "http://www.msi-ecs.com.ph/diginews?mn=dgpromo&id=504",
		"firstline" : "",
		"secondline" : ""
	}, {

		"title" : "Learn more about Lenovo B460 >>",
		"image" : "banner/banner21.png",
		"url" : "http://www.msi-ecs.com.ph/diginews?mn=dgnws&id=362",
		"firstline" : "",
		"secondline" : ""
	},{
		
		"title" : "Click here for more details >>",
		"image" : "banner/banner20.png",
		"url" : "http://www.msi-ecs.com.ph/diginews?mn=dgnws&id=361",
		"firstline" : "",
		"secondline" : ""
	},{

		"title" : "About iCafe Back2School Promo >>",
		"image" : "banner/banner14.png",
		"url" : "http://www.msi-ecs.com.ph/diginews?mn=dgpromo",
		"firstline" : "",
		"secondline" : ""
	}, {

		"title" : "Click to see promo details! >>",
		"image" : "banner/banner11.png",
		"url" : "http://www.msi-ecs.com.ph/diginews?mn=dgpromo&id=501",
		"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/btn_pause.gif)" });
		
		// 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.gif)" });
		
		// Clear the interval
		clearInterval(interval);
	};
	
	// We should statically set the first image
	navigate("next");
	
	// Start playing the animation
	interval = setInterval(function() {
		navigate("next");
	}, slideshowSpeed);
	
});