function handle_mouse(id,action)
  {
    var image = "nav_out";
    if (action == "in") {
        image = "nav_in";
    }
    document.getElementById(id).style.backgroundImage = "url(upload/logos/" + image + ".gif)";
  }

function openImage(image) {
    win = open(image,"Bild","width=500,height=500,resizable=yes,scrollbars=no");
}