rem: return listener.onStartRequest(this, ctxt); 
add: throw Components.results.NS_ERROR_NOT_IMPLEMENTED; 
context: function bc_asyncRead(listener, ctxt){    return listener.onStartRequest(this, ctxt);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/011575288725b715acecc1e05dedf64caf4b5b13/chatzilla-service.js/clean/extensions/irc/js/lib/chatzilla-service.js