var img;
var timeout = 4000;
var path = "/img/wedding/";
var numImages = 15;

function startSlideshow() {
    img = document.getElementById("slideshowimg");
    setNewImage(Math.floor(Math.random()*numImages));
}

function setNewImage(i) {
    img.src = path + (i+1) + ".jpg";
    setTimeout("setNewImage("+(i+1)%(numImages) +")",timeout);
}

function dimImage(i) {
    img.style.opacity = i * .01;
    img.style.filter = "alpha(opacity=" + (i * .01) + ")";
    if (i > 10) {
        setTimeout("dimImage("+(i-1)+")",timeout/100);
    }
}