/*
* 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" : "Pensions",
		"image" : "slider_pension.jpg",
		"text" : "Maximise your retirement income",
		"url" : "pensions/pension-advice",
		"buttontext" : "Get independent pension advice"
		
	}, {
		"title" : "Annuities",
		"image" : "slider_annuities.jpg",
		"text" : "Is an annuity the right choice for you?",
		"url" : "annuities",
		"buttontext" : "Get information and advice »"
	
	}, {
		"title" : "Investments",
		"image" : "slider_investment.jpg",
		"text" : "Are you investing for income or growth?",
		"url" : "investment",
		"buttontext" : "Compare products here »"
		
	},
	{
		"title" : "Mortgages",
		"image" : "slider_mortgages.jpg",
		"text" : "Get the latest mortgage rates & information",
		"url" : "mortgages",
		"buttontext" : "Visit our mortgages section »"
		
	},
	{
		"title" : "Company Pensions",
		"image" : "slider_comp-pension.jpg",
		"text" : "Looking to set up a Company Pension?",
		"url" : "company-pensions",
		"buttontext" : "Get expert company pension advice"
		
	}, {
		"title" : "Insurance",
		"image" : "slider_insurance.jpg",
		"text" : "Make sure your loved ones are protected",
		"url" : "insurance",
		"buttontext" : "Get independent advice »"
		
	},
	{
		"title" : "Savings",
		"image" : "slider_savings.jpg",
		"text" : "Maximise the return on your savings",
		"url" : "savings",
		"buttontext" : "Compare products now »"
		
	}
];



$(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(../img/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 = 999;
	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(img/" + photoObject.image + ")",
			"display" : "block",
			"z-index" : currentZindex
		});
		
		// Hide the header text
		//$("#headertxt").css({"display" : "none"});
		
		// Set the new header text
		$("#calltoactiontext").html(photoObject.text);
		$("#calltoactionlink").html(photoObject.buttontext);
		$("#calltoactionlink").attr("href", photoObject.url)
		/*$("#calltoactionbutton").html({
			"background-image" : "url(images/" + photoObject.button + ")",
			"display" : "block",
			"z-index" : "4500"
			});*/
		//$("#calltoactionbutton").url("images/" + photoObject.button);
		/*$("#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;
			}, 600);
		});
	};
	
	var stopAnimation = function() {
		// Change the background image to "play"
	//	$("#control").css({ "background-image" : "url('../img/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);
	
});