// JavaScript Document
var photoHomepage = new Array()
photoHomepage[0] = "img/photo-batiment.jpg";
photoHomepage[1] = "img/photo-batiment2.jpg";
photoHomepage[2] = "img/photo-batiment3.jpg";
photoHomepage[3] = "img/photo-batiment4.jpg";

function fadeinphotoHomepage(elem, imageList, slideDuration, fadeSpeed, current) {
    // get the length of the image array.
    var listSize = imageList.length;
    // If there's no current image selected, or the value is out of the range of the
    // photoHomepage, then set the current image to zero.
    if (!current || current >= listSize) current = 0;
    // If there's no slide duration set, set it to 5 seconds.
    if (!slideDuration) slideDuration = 5000;
    // If there's no fade speed set, set it to 1 second.
    if (!fadeSpeed) fadeSpeed = 1000;
    // Set the image's source to the current image's url.
    $(elem + " img").attr("src", imageList[current]);
    // If the current element is at the maximum of the element size, then set the 
    // wrapper's background (aka, the next image) to the first image.
    if (current == (listSize - 1)) {
        $(elem).css("background", "url(" + imageList[0] + ") no-repeat");
    } else {
    // If not, set the next image in the list to the background of the wrapper.
        $(elem).css("background", "url(" + imageList[current + 1] + ") no-repeat");
    }
    // Hold the current image for a period of time equal to slideDuration. Once that's done, then
    // fade the current image's opacity until the background image shows. Once that is done, then
    // call this same function again with the next image in line.
    $(elem + " img").animate({ opacity: "1" }, slideDuration).animate({ opacity: "0.01" }, fadeSpeed, function() { $(this).css("opacity", "1"); fadeinphotoHomepage(elem, imageList, slideDuration, fadeSpeed, current + 1) });
} // end of function fadeinphotoHomepage()

function runphotoHomepage(){
    fadeinphotoHomepage("#photoHomepage", photoHomepage, 1000, 1000);
}

$(document).ready(runphotoHomepage);