function toggleList(object)
      {
        var childList = object.parentNode.getElementsByTagName("ul")[0];
        childList.style.display = (childList.style.display == "block") ? "none" : "block";
        object.parentNode.className = (object.parentNode.className == "") ? "expanded" : "";
        return false;
      }

      function toggleList2(img, ul)
      {
        var theUL = document.getElementById(ul);
        var theIMG = document.getElementById(img);
        if (theUL.style.display == "block")
        {
          theUL.style.display = "none";
          theIMG.src = "images/plus.gif";
        }
        else
        {
          theUL.style.display = "block";
          theIMG.src = "images/minus.gif";
        }
        return false;
      }

      function changePicture(picture)
      {
        document["bigpicture"].src = picture;
        return false;
      }