// (c) by Matthias Tomaschek

var expzip = -1;

function togglezip(n)
{
  var zipe = document.getElementById("zip"+n);
  var zipt = document.getElementById("toggle"+n);

  if(zipe.style.display == "block")
  {
    zipe.style.display = "none";
    zipt.src = "/media/images/toggle/expand.png";

    if(expzip == n)
    {
      expzip = -1;
    }
  }
  else
  {
    zipe.style.display = "block";
    zipt.src = "/media/images/toggle/collapse.png";

    if(expzip >= 0)
    {
      document.getElementById("zip"+expzip).style.display = "none";
      document.getElementById("toggle"+expzip).src = "/media/images/toggle/expand.png";
    }
    expzip = n;
  }
}