function toggleDisplay(id) {
  if (toggleDisplay.arguments.length > 1) {
    if (!document.ZNcurrentFull) {
      document.ZNcurrentFull = new Array();
    }

    if (!document.ZNcurrentFull[toggleDisplay.arguments[0]]) {
      document.ZNcurrentFull[toggleDisplay.arguments[0]] = new Object();
    }

    currentList = document.ZNcurrentFull[toggleDisplay.arguments[0]];
  } else {
    if (!document.ZNcurrentFull) {
      document.ZNcurrentFull = new Object();
    }

    currentList = document.ZNcurrentFull;
  }

  if (currentList.value == id) {
    document.getElementById(id + '_full').style.display = 'none';
    document.getElementById(id + '_brief').style.display = 'block';
    currentList.value = "";

  } else {
    if (currentList.value) {
      document.getElementById(currentList.value + '_full').style.display = 'none';
      document.getElementById(currentList.value + '_brief').style.display = 'block';
    }

    document.getElementById(id + '_brief').style.display = 'none';
    document.getElementById(id + '_full').style.display = 'block';
    currentList.value = id;
  }
}

function popUp(url,name,width,height,options) {
  width  = parseInt(width);
  height = parseInt(height);

  settings = "height=" + height + ",";
  settings += ",width=" + width + ",";

  if (options.indexOf("toolbar") != -1)
    settings += "toolbar=yes,";
  else
    settings += "toolbar=no,";

  if (options.indexOf("status") != -1)
    settings += "status=yes,";
  else
    settings += "status=no,";

  if (options.indexOf("location") != -1)
    settings += "location=yes,";
  else
    settings += "location=no,";

  if (options.indexOf("directories") != -1)
    settings += "directories=yes,";
  else
    settings += "directories=no,";

  if (options.indexOf("menubar") != -1)
    settings += "menubar=yes,";
  else
    settings += "menubar=no,";

  if (options.indexOf("scrollbars") != -1)
    settings += "scrollbars=yes,";
  else
    settings += "scrollbars=no,";

  if (options.indexOf("resizable") != -1)
    settings += "resizable=yes,";
  else
    settings += "resizable=no,";

  var nnn=window.open(url,name,settings);

}

function rollOver(id) {
  document.getElementById(id).src = "images/b_" + id + "_over.gif";
}
function rollOut(id) {
  document.getElementById(id).src = "images/b_" + id + ".gif";
}