rem: _content.document.toggleImageSize(); 
add: content.document.toggleImageSize(); 
context:     toggleImageSize : function () {        _content.document.toggleImageSize();    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/e698edaacf3ce39c6860e7c9f4e6efa76159177e/nsContextMenu.js/buggy/xpfe/communicator/resources/content/nsContextMenu.js