rem: doc.charset, 
add: doc.characterSet, 
context:     addBookmarkForFrame : function() {      var doc = this.target.ownerDocument;      var uri = doc.location.href;      var title = doc.title;      if ( !title )        title = uri;      BookmarksUtils.addBookmark( uri,                                  title,                                  doc.charset,                                  false );    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/abfa75cc7795e7a93a3e1fe6d374ebe918e5f231/nsContextMenu.js/clean/mail/base/content/nsContextMenu.js