/*
* Author:      Marco Kuiper (http://www.marcofolio.net/)
*/

// 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" : "Electric Shocking",
		"image" : "ba_electric_shock.jpg",
		"url" : "http://www.krazymarket.com/items/electric-shock-liar-53230.html",
		"secondline" : "Click here to SEE!"
	}, {
		"title" : "DIY Akari",
		"image" : "ba_lamp.jpg",
		"url" : "http://www.krazymarket.com/items/akari-origami-paper-53228.html",
		"secondline" : "Click here to BUY!"
	}, {
		"title" : "Musical Fountain Speaker",
		"image" : "ba_musical_fountain.jpg",
		"url" : "http://www.krazymarket.com/items/led-colorful-53227.html",
		"secondline" : "Click here to BUY!"
	}, {
		"title" : "Balloon To Rabbit Box",
		"image" : "ba_ballon_rabbit_box.jpg",
		"url" : "http://www.krazymarket.com/items/balloon-to-rabbit-52733.html",
		"secondline" : "Click here to BUY!"
	}
];

$(document).ready(function() {
	
	$("#1").click(function() {
		navigate("next",1);
	});
	$("#2").click(function() {
		navigate("next",2);
	});
	$("#3").click(function() {
		navigate("next",3);
	});
	$("#4").click(function() {
		navigate("next",4);
	});
	/*
	$("#5").click(function() {
		navigate("next",5);
	});*/
	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",0);
		
		// Start playing the animation
		interval = setInterval(function() {
			navigate("next",0);
		}, slideshowSpeed);
	});
	
	
	var activeContainer = 1;	
	var currentImg = 0;
	var animating = false;
	var i;
	var navigate = function(direction,number) {
		// Check if no animation is running. If it is, prevent the action
		if(animating) {
			return;
		}
		if (number > 0) {
			currentImg = number - 1;
		}
		// 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;
		}
		
		for(i=1;i<=4;i++) {
			$("#"+i).removeClass("pageselect");
			$("#"+i).addClass("pages");
		}		
		$("#"+currentImg).removeClass("pages");
		$("#"+currentImg).addClass("pageselect");
		
		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
		$("#secondline")
			.attr("href", photoObject.url)
			.html("<img src='images/space.gif' width=1000 height=200 border=0>");
		// 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",0);
	
	// Start playing the animation
	interval = setInterval(function() {
		navigate("next",0);
		if (currentImg==1) {
			prevImg = photos.length;
		} else {
			prevImg = currentImg - 1;
		}
		
		$("#"+prevImg).removeClass("pageselect");
		$("#"+prevImg).addClass("pages");
		$("#"+currentImg).removeClass("pages");
		$("#"+currentImg).addClass("pageselect");
	}, slideshowSpeed);
	
});