rem: var item = document.getElementById(id); if (!item) return false; 
add: if (!item) return false; 
context: function ShowHiddenItemOnCleanup( id ){  var item = document.getElementById(id);  if (!item)    return false;  var isHidden = (item.getAttribute('contexthidden') == 'true');  if (isHidden)  {    item.removeAttribute('hidden');    item.removeAttribute('contexthidden');    return true;  }    return false;}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/5986ab59396a3071965154ed4499fa5a734750cd/EditorContextMenu.js/buggy/editor/ui/composer/content/EditorContextMenu.js