function Display(id)
{
  if (document.all)		       // ie 4+
  {
    vis = (document.all[id].style.display == 'none') ? 'block' : 'none';
    document.all[id].style.display = vis;
  }
  else if (document.layers)	       // ns 4
  {
    //vis = (document.layers[id].visibility == 'hide') ? 'show' : 'hide';
    //document.layers[id].visibility = vis;

    vis = (document.layers[id].display == 'none') ? 'block' : 'none';
    document.layers[id].display = vis;
  }
  else if (document.getElementById)    // ns 6+
  {
    vis = (document.getElementById(id).style.display == 'none') ? 'block' : 'none';
    document.getElementById(id).style.display = vis;
  }
}

function DisplayShow(id)
{
  if (document.all)		       // ie 4+
  {
    document.all[id].style.display = 'block';
  }
  else if (document.layers)	       // ns 4
  {
    //document.layers[id].visibility = 'hide';
    document.layers[id].display = 'block';
  }
  else if (document.getElementById)    // ns 6+
  {
    document.getElementById(id).style.display = 'block';
  }
}

function DisplayHide(id)
{
  if (document.all)		       // ie 4+
  {
    document.all[id].style.display = 'none';
  }
  else if (document.layers)	       // ns 4
  {
    //document.layers[id].visibility = 'show';
    document.layers[id].display = 'none';
  }
  else if (document.getElementById)    // ns 6+
  {
    document.getElementById(id).style.display = 'none';
  }
}