/*
* 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" : "tools",
		"image" : "pushup.jpg",
		"url" : "",
		"firstline" : "\"These New Supplements I Am Taking",
		"secondline" : "Are Giving Me Great Energy!\""
	}, {
		"title" : "",	
		"image" : "workout_girl_2.jpg",
		"url" : "",
		"firstline" : "\"I Need Advice",
		"secondline" : "On Good Form?\""
	}, {
		"title" : "theflexbelt",
		"image" : "tfb_ad_hdr.jpg",
		"url" : "TheFlexBelt.html",
		"firstline" : "Click Here to Check Out",
		"secondline" : "The Flex Belt Blog and Review"
	}, {
		"title" : "stretch",
		"image" : "exercise_ball.jpg",
		"url" : "",
		"firstline" : "\"What is the Best Way",
		"secondline" : "To Tone My Stomach?\""
	}, {
		"title" : "sushi",
		"image" : "girl_sushi.jpg",
		"url" : "",
		"firstline" : "\"I've Achieved My Goal Weight and",
		"secondline" : "I Feel Great On This Meal Plan!\""
	}, {
		"title" : "store",
		"image" : "visit_the_store_hdr.jpg",
		"url" : "secureorder.php",
		"firstline" : "Check Out Our Store For",
		"secondline" : "Recommended Products"
	}, {
		"title" : "videos",
		"image" : "fv_hdr.jpg",
		"url" : "#featured-videos",
		"firstline" : "Check Out Our",
		"secondline" : "Featured Video Section"
	}, {
		"title" : "",
		"image" : "blog.jpg",
		"url" : "",
		"firstline" : "See What Other Customers Are Saying",
		"secondline" : "& Leave Your Own Feedback"
	}
];



$(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.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 = -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);
		
		if(photoObject.url != "") {
		  $("#secondline")
			.attr("href", photoObject.url)
		  	.html(photoObject.secondline);
		  $("#secondline").hover(
		    function (){ $(this).css("text-decoration", "underline").css("color", "#7F000C");},
		    function(){ $(this).css("text-decoration", "none").css("color", "#CD2B3A");}
		  );
			
		} else {
		  $("#secondline")
		  	.removeAttr("href")
			.html(photoObject.secondline);
		  $("#secondline").hover(
		    function (){ $(this).css("text-decoration", "none").css("color", "#CD2B3A");},
		    function(){ $(this).css("text-decoration", "none").css("color", "#CD2B3A");}
		  );

		}
		
		if(photoObject.url != "") {
		  $("#pictureduri")
			.attr("href", photoObject.url)
			.html(photoObject.title);
		} else {
		  $("#pictureduri")
			.removeAttr("href")
			.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);
	
});