rem: return getService().openDatabase(getTestDB()); 
add: return gDBConn ? gDBConn : getService().openDatabase(getTestDB()); 
context: function getOpenedDatabase(){  return getService().openDatabase(getTestDB());}
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/8341261e6214a8c57ab548db3ce6050df64e52ef/head_storage.js/clean/storage/test/unit/head_storage.js