function displayLayer(no){
	menutest=getLayer('menu');
	sousmenu=getLayer('smenu'+no);

	switch (no){
	case 1:
		plus=17;
		break;
	case 2:
		plus=113;
		break;
	case 3:
		plus=314;
		break;
	case 4:
		plus=429;
		break;
	case 5:
		plus=585;
		break;
	}
	
	if (isMinNS4) {
		sousmenu.left = menutest.pageX+plus;
		sousmenu.top = menutest.pageY+20;
	}
	else if(NS6) {
		sousmenu.style.left = menutest.offsetLeft+plus;
		sousmenu.style.top = menutest.offsetTop+20;
	}
	else {
		sousmenu.style.pixelLeft = menutest.offsetLeft+plus;
		sousmenu.style.pixelTop = menutest.offsetTop+20;
	}
	showLayer(sousmenu);
}

function showLayer(layer) {

  if (isMinNS4)
    layer.visibility = "show";
  if (isMinIE4 || NS6)
    layer.style.visibility = "visible";
}

function hideLayer(layer) {

  if (isMinNS4)
    layer.visibility = "hide";
  if (isMinIE4 || NS6)
    layer.style.visibility = "hidden";
}

function getLayer(name) {

  if (isMinNS4)
    return findLayer(name, document);
  if (isMinIE4)
    return eval('document.all.' + name);
	if (NS6)
		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)
      if ((layer = findLayer(name, layer.document)) != null)
        return layer;
  }
  return null;
}

function getImage(name) {

  if (isMinNS4) {
    return findImage(name, document);
  }
  if (isMinIE4)
    return eval('document.all.' + name);
	if (NS6)
		return document.images[name];
  return null;
}

function findImage(name, doc) {

  var i, img;

  for (i = 0; i < doc.images.length; i++)
    if (doc.images[i].name == name)
      return doc.images[i];
  for (i = 0; i < doc.layers.length; i++)
    if ((img = findImage(name, doc.layers[i].document)) != null) {
      img.container = doc.layers[i];
      return img;
    }
  return null;
}