function ref(object)
{
  if (document.getElementById)
  {
    return document.getElementById(object);
  }
  else if (document.all)
  {
    return eval('document.all.' + object);
  }
  else
  {
    return false;
  }
}

function toggle(ob)
{
 
  object = ref(ob);
  //mp = ref(ob + '_mp');
  

  if( !object.style )
  {
    return false;
  }

  if( object.style.display == 'block')
  {
    object.style.display = 'none';
	//mp.innerHTML = '+';
  }
  else
  {
    object.style.display = 'block';
	//mp.innerHTML = '-';
  }
  return false;
}