function ShowBiggerImage(biggerImage)
{
    var layer = document.getElementById("biggerimagelayer");
    var holder = document.getElementById("biggerimageholder");
    var whitelayer = document.getElementById("biggerimagewhitelayer");
    var closelink = document.getElementById("biggerimagecloselink");
    var biggerimage = document.getElementById("biggerimage");
  
    layer.className = "biggerimagelayer";
    holder.className = "biggerimageholder";
    whitelayer.className = "biggerimagewhitelayer";
    closelink.className = "closelink";
    biggerimage.className = "biggerimage";
    
    biggerimage.style.backgroundImage = "url('" + biggerImage + "')";
    biggerimage.style.backgroundRepeat = "no-repeat";
}

function CloseBiggerImage()
{
    var layer = document.getElementById("biggerimagelayer");
    var holder = document.getElementById("biggerimageholder");
    var whitelayer = document.getElementById("biggerimagewhitelayer");
    var closelink = document.getElementById("biggerimagecloselink");
    var biggerimage = document.getElementById("biggerimage");
  
    layer.className = "";
    holder.className = "";
    whitelayer.className = "";
    closelink.className = "invisible";
    biggerimage.className = "";
    
    biggerimage.style.backgroundImage = "";
}