rem: if (uri[0] != 'n') { 
add: if (!uri || uri[0] != 'n') { 
context: function isNewsURI(uri){    if (uri[0] != 'n') {        return false;    }    else {        return (uri.substring(0,6) == "news:/");    }}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/86157e730f47e3eb21fb36718608f00bf6da2f8e/commandglue.js/clean/mailnews/base/resources/content/commandglue.js