$(document).ready(function() {
	var animateSlide = false;
	var slideshowSpeed = 10000;
	
	var myimages=new Array()
	preloadimages = function(){
		for (i=0;i<photos.length;i++){
			myimages[i]=new Image();
			myimages[i].src=photos[i].image;
		}
	}
	
	preloadimages();
	
	// 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, direction);
		
	};
	
	var currentZindex = -1;
	var showImage = function(photoObject, currentContainer, activeContainer, direction) {
		animating = true;
		$("body").css("overflow", "hidden");
		var w_w = $(window).width();
		var w_h = $(window).height();
		// Make sure the new container is always on the background
		currentZindex++;
		
		// Set the background image of the new active container
		$("#headerimg" + activeContainer).attr("src",photoObject.image);
			$("#headerimg" + activeContainer).css({
				//"src" : "url(" + photoObject.image + ")",
				"width" : "100%",
				"display" : "block",
				"z-index" : -2
		});	
			// Hide the header text
			$("#headertxt").fadeOut("fast", function(){		
				// Set the new header text
				$("#firstline").html(photoObject.firstline);
				$("#secondline").attr("href", photoObject.url).html(photoObject.secondline);
				$("#topline").html(photoObject.datetime);
				$("#pictureduri").attr("href", photoObject.url).html(photoObject.title);
							
				Cufon.replace('#firstline', {hover: true});		
				Cufon.now();
			});
			
			// Fade out the current container
			// and display the header text when animation is complete
			$("#headerimg" + currentContainer).css({
				"z-index" : -3
			});
				
			if(direction == "next")
			{			
				$("#headerimg" + currentContainer).css({"right": 0+"px"});
				$("#headerimg" + activeContainer).css({"right": "-"+w_w+"px"});
				$("#headerimg" + currentContainer).animate({"right":w_w+"px" },'slow','swing');
				$("#headerimg" + activeContainer).animate({"right":0+"px" },'slow','swing', function() {
					//setTimeout(function() {
						$("#headertxt").fadeIn("slow");
						
						/*$("#headertxt").animate({"padding-left" : 253+"px"},'fast', function(){
							$("#headertxt").animate({"padding-left" : 247+"px"},'fast', function(){
								$("#headertxt").animate({"padding-left" : 250+"px"},'fast');
							});
						});*/
						animating = false;
					//}, 50);
				});
			}
			else
			{			
				$("#headerimg" + currentContainer).css({"right": 0+"px"});
				$("#headerimg" + activeContainer).css({"right": w_w+"px"});
				$("#headerimg" + currentContainer).animate({"right":"-"+w_w+"px" },'slow','swing');
				$("#headerimg" + activeContainer).animate({"right":0+"px" },'slow','swing', function() {
					$("#headertxt").fadeIn("slow");
					/*$("#headertxt").animate({"padding-left" : 253+"px"},'fast', function(){
						$("#headertxt").animate({"padding-left" : 247+"px"},'fast', function(){
							$("#headertxt").animate({"padding-left" : 250+"px"},'fast');
						});
					});*/
					animating = false;
				});
			}
	};
	
	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
	
	var defaultImage = function(num) {
		$("#headerimg1").attr("src",photos[num].image);
		$("#headerimg1").css({
			//"src" : "url(" + photoObject.image + ")",
			"opacity":1,
			"width" : "100%",
			"display" : "block",
			"z-index" :-1
		});
		
		// Set the new header text
		$("#firstline").html(photos[num].firstline);
		$("#secondline")
			.attr("href", photos[num].url)
			.html(photos[num].secondline);
		$("#pictureduri")
			.attr("href", photos[num].url)
			.html(photos[num].title);
		
		Cufon.replace('#firstline', {
			hover: true
		});
	}
	
	defaultImage(1);
	
	navigate("next");
	// Start playing the animation
	if(animateSlide == true)
	{
		interval = setInterval(function() {
			navigate("next");
		}, slideshowSpeed);
	}
	
});