$(document).ready(function() {
	var activeContainer = 1;	
	var currentImg = 0;
	var preImg = 0;
	var animating = false;
	preload_image_object = new Image();
	var navigate = function(direction) {
		if(animating) {
			return;
		}
		currentImg++;
		if(currentImg == photos.length + 1) {
			currentImg = 1;
		}
		var currentContainer = activeContainer;
		if(activeContainer == 1) {
			activeContainer = 2;
		} else {
			activeContainer = 1;
		}
		showImage(photos[currentImg - 1], currentContainer, activeContainer);
// ---------
		preImg = currentImg;
//alert(preImg);
		if(preImg >= photos.length) {
			preImg = 0;
		}
//alert(preImg+'-'+dirImg+photos[preImg].image);
		preload_image_object.src = dirImg+photos[preImg].image;
// ---------
	};
	var currentZindex = -1;
	var showImage = function(photoObject, currentContainer, activeContainer) {
		animating = true;
		currentZindex--;
		$("#headerimg" + activeContainer).css({
			"background-image" : "url("+dirImg+photoObject.image+")",
			"display" : "block",
			"z-index" : currentZindex
		});
		$("#headerimg" + currentContainer).fadeOut(function() {
			setTimeout(function() {
				animating = false;
			}, 500);
		});
	};
	navigate("next");
	interval = setInterval(function() {
		navigate("next");
	}, slideshowSpeed);
});