rem: docshell.document.charset, 
add: docshell.document.characterSet, 
context:     addBookmark : function() {      var docshell = document.getElementById( "content" ).webNavigation;      BookmarksUtils.addBookmark( docshell.currentURI.spec,                                  docshell.document.title,                                  docshell.document.charset,                                  false );    },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/e4061125e3a114b07c1cb46e3d4cc6d2475ab60d/nsContextMenu.js/clean/mail/base/content/nsContextMenu.js