var slides = [];
var slideshowIndex = 0;
var slideshowNum = 0;

function initSlideshow(index, num) {
    slideshowIndex = index;
    slideshowNum = num;
}

function slideshow_next() {
    slideshowIndex++;
    if (slideshowIndex >= slides[slideshowNum].length - 1) {
        slideshowIndex = 0;
    }
    slideshow_display();
}

function slideshow_prev() {
    slideshowIndex--;
    if (slideshowIndex < 0) {
        slideshowIndex = slides[slideshowNum].length - 2;
    }
    slideshow_display();
}

function slideshow_display() {
//    alert("slideshowIndex = " + slideshowIndex + "\nslideshowNum = " + slideshowNum + "\n slide:" + slides[slideshowNum][slideshowIndex]);
    
    if ($('#facebox').css("display") == "block") {
        $('#largest_slide').remove();
        $.facebox.handleFaceboxImage(slides[slideshowNum][slideshowIndex], "");
    }
}