rem: throw Components.results.NS_ERROR_NO_CONTENT; 
add:   Components.returnCode = NS_ERROR_NO_CONTENT; 
context: function bc_open(observer, ctxt){    spawnChatZilla(this.URI.spec);    throw Components.results.NS_ERROR_NO_CONTENT;}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/efb000186f885cc1dbfb9bd68e8e9406e44ccf7f/chatzilla-service.js/clean/extensions/irc/js/lib/chatzilla-service.js