- fprintf(f, "<dive date='%04u-%02u-%02u' time='%02u:%02u:%02u' duration='%u:%02u min'>\n",
- tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
- tm->tm_hour, tm->tm_min, tm->tm_sec,
+ fputs("<dive", f);
+ if (dive->number)
+ fprintf(f, " number='%d'", dive->number);
+ fprintf(f, " date='%04u-%02u-%02u'",
+ tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday);
+ fprintf(f, " time='%02u:%02u:%02u'",
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ fprintf(f, " duration='%u:%02u min'>\n",