var slideshowSlides = new Array();
var slideshowCurrent = 0;


// Preload slideshow images
function slideshowInit() {
	if (document.images) {
		for (var i = 0; i < slideshowImageFiles.length; i++) {
			slideshowSlides[i]     = new Image();
			slideshowSlides[i].src = slideshowImageDirectory + slideshowImageFiles[i];
		}
	}
}


// Show next slide
function slideshowForward() {
	if (document.images && typeof slideshowSlides != 'undefined') {
		slideshowCurrent++;
		if (slideshowCurrent >= slideshowSlides.length) slideshowCurrent = 0;
		document.images.slideshow.src = slideshowSlides[slideshowCurrent].src;
	}
}


// Show previous slide
function slideshowBackward() {
	if (document.images && typeof slideshowSlides != 'undefined') {
		slideshowCurrent--;
		if (slideshowCurrent < 0) slideshowCurrent = slideshowSlides.length - 1;
		document.images.slideshow.src = slideshowSlides[slideshowCurrent].src;
	}
}