SRP_gN *SRP_get_default_gN(const char * id)
	{
	int i; 

	if (id == NULL) 
		return knowngN;
	for(i = 0; i < KNOWN_GN_NUMBER; i++)
		{
		if (strcmp(knowngN[i].id,id)==0)
			return knowngN+i;
		}
	return NULL;
	}
SRP_gN *SRP_get_default_gN(const char * id)
	{
	int i; 

	if (id == NULL) 
		return knowngN;
	for(i = 0; i < KNOWN_GN_NUMBER; i++)
		{
		if (strcmp(knowngN[i].id,id)==0)
			return knowngN+i;
		}
	return NULL;
	}