var isMinNS4 = (document.layers) ? 1 : 0;
var isMinIE4 = (document.all)? 1:0;
var isMinNS6 = (document.getElementById&&!document.all)? 1:0;

function hideLayer(name) {
  var layer = getLayer(name);
  if (isMinNS6 || isMinIE4)
    layer.style.display='none';
}

function showLayer(name) {
  var layer = getLayer(name);
  if (isMinNS6 || isMinIE4)
    layer.style.display='block';
}

function toggleLayer(name) {
  var layer = getLayer(name);
  if (isMinNS6 || isMinIE4)
    if (layer.style.display=='block'){layer.style.display='none'}else{layer.style.display='block'};
}

function closeallnodes(){
         for (i=0 ; i < foldinglist.length ; i++){
		hideLayer(foldinglist[i]);
         }
}

function getLayer(name) {

  if (isMinNS4)
    return findLayer(name, document);
  if (isMinIE4)
    return eval('document.all.' + name);
  if (isMinNS6)
    return document.getElementById(name);

  return null;
}

function findLayer(name, doc) {

  var i, layer;

  for (i = 0; i < doc.layers.length; i++) {
    layer = doc.layers[i];
    if (layer.name == name)
      return layer;
    if (layer.document.layers.length > 0) {
      layer = findLayer(name, layer.document);
      if (layer != null)
        return layer;
    }
  }

  return null;
}

function submit_it(action){
document.job.action.value=action;
document.job.submit();
}