var indexPhoto = 1;

// celkovy pocet fotek
var photosCount = 2;

// rychlost animace fotky
var speedAnimate = 4000;

// animace fotek
var photo_animate;


$(document).ready(function() {
    photo_animate = setTimeout(function() { runAnimate(); }, speedAnimate);
});

function changePhoto()
{
    indexPhoto = indexPhoto + 1;

    if (indexPhoto > photosCount) {
        indexPhoto = 1;
    }
}

function runAnimate()
{
    $("#main_img div.image-" + indexPhoto).fadeOut(1000);
    changePhoto();
    $("#main_img div.image-" + indexPhoto).fadeIn(1000);
    photo_animate = setTimeout(function() { runAnimate(); }, speedAnimate);
}