return gDBConn ? gDBConn : getService().openDatabase(getTestDB()); 
return gDBConn ? gDBConn : gDBConn = getService().openDatabase(getTestDB()); 
function getOpenedDatabase(){  return gDBConn ? gDBConn : getService().openDatabase(getTestDB());}
5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5872/ae472131bb5afe44c08a57325da60f0d6950f1dd/head_storage.js/clean/storage/test/unit/head_storage.js