function ShowHide(post_id) {
id1=post_id;  id2="qr_closed";
  if (id1 != '') expMenu(id1);
  if (id2 != '') expMenu(id2);
}

function expMenu(id) {
  var itm = null;
  if (document.getElementById) {
 itm = document.getElementById(id);
  } else if (document.all){
 itm = document.all[id];
  } else if (document.layers){
 itm = document.layers[id];
  }

  if (!itm) {
   // do nothing
  }
  else if (itm.style) {
 if (itm.style.display == "none") {
   itm.style.display = "";
 }
 else {
   itm.style.display = "none";
 }
  }
  else {
 itm.visibility = "show";
  }
}