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: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/145e0993e94be58c9a9a2168ca6b8cc2de5d31a3/EditorContextMenu.js/buggy/editor/ui/composer/content/EditorContextMenu.js