var image1 = new Array();
var image2 = new Array();
var image3 = new Array();
var x1 = 1;
var x2 = 1;
var x3 = 1;
var timer = 4000;        // čas v ms

function preloadImages() {
for (i=1;i<=3;i++) {        //počet obrázků v 1 části
image1[i] = new Image();
image1[i].src = "db/obr/obr0" + i + ".jpg";
        }
for (i=1;i<=3;i++) {        //počet obrázků v 2 části
image2[i] = new Image();
image2[i].src = "db/obr/obr1" + i + ".jpg";
        }
for (i=1;i<=3;i++) {        //počet obrázků v 3 části
image3[i] = new Image();
image3[i].src = "db/obr/obr2" + i + ".jpg";
        }
}

function nextImage(image, x) {
        if(eval(image + '[' + x + '].complete')) document.images[image].src = eval(image + '[' + x + '].src');
}

function startSlideShow() {
        if(++x1 > image1.length - 1) x1 = 1;
        nextImage('image1', x1);
        if(++x2 > image2.length - 1) x2 = 1;
        nextImage('image2', x2);
        if(++x3 > image3.length - 1) x3 = 1;
        nextImage('image3', x3);
setTimeout('startSlideShow()', timer);
}

function openWindow(a, b) {
        w = window.open('db/obr/' + a + b + '.jpg', 'image', 'resizable=1,width=355,height=280');
        w.focus();
}
function openWindow_v(a, b) {
        w = window.open('db/obr/' + a + b + '.jpg', 'image', 'resizable=1,width=300,height=420');
        w.focus();
}