isInitialized = PR_FALSE;
NSS_Shutdown(void){    CERTCertDBHandle *certHandle;    SECKEYKeyDBHandle *keyHandle;    SECMOD_Shutdown();    PR_FREEIF(secmodname);    certHandle = CERT_GetDefaultCertDB();    if (certHandle)    	CERT_ClosePermCertDB(certHandle);    CERT_SetDefaultCertDB(NULL);     keyHandle = SECKEY_GetDefaultKeyDB();    if (keyHandle)    	SECKEY_CloseKeyDB(keyHandle);    SECKEY_SetDefaultKeyDB(NULL); }