var rootPath = "";
function pageLoad(root)
{
    rootPath = (root ? root : "");
    var today = new Date(),
        img   = new Image(),
        imgElement = document.getElementById('imgCalendar');
        imgPath    = rootPath + 'Image/Calendar/' + today.getFullYear() + '/',
        month = today.getMonth() + 1,
        prevMonth = month - 1,
        nextMonth = month + 1;

    displayCopyright()
    document.getElementById('aNextYear').innerHTML = (today.getFullYear() + 1);

    imgElement.src = rootPath + 'Image/Calendar/' + (today.getFullYear() - 1) + '/' + today.getFullYear() + '.jpg';

    img.onload = function() { imageLoaded(img); };
    img.error  = function() { imageError (img); };

    if(month     <= 9) month     = '0' + month;
    if(prevMonth <= 9) prevMonth = '0' + prevMonth;
    if(nextMonth <= 9) nextMonth = '0' + nextMonth;

    if(month%2 == 0)
        img.src = imgPath + prevMonth + '-' + month + '.jpg';
    else
        img.src = imgPath + month + '-' + nextMonth + '.jpg';

}

function displayCopyright()
{
    document.getElementsByClassName("tdCopyright")[0].innerHTML = "Copyright &#169; Procusys 2004 - " + (new Date().getFullYear());
}

function imageLoaded(img)
{
    document.getElementById('imgCalendar').src = img.src;
}

function changePicture(imgMonth) 
{
    if (!imgMonth) imgMonth = new Date().getFullYear() + 1;
    var img = new Image();
    img.onload = function() { imageLoaded(img); };
    img.src = rootPath + 'Image/Calendar/' + new Date().getFullYear() + "/" + imgMonth + '.jpg';
}