This is what my script uses. I commented out the skill cast for some reason, probably because it caused mafia to go all smart on me and break something. If I had to guess it would have been trying to automate the choice adventure it found me in, not know what to do, and abort the script to ask me. Aside from that, you want to submit a POST request for the second link, and comparing the two, you don't need to submit the 'and Fight!' part, that is what option=1 is all about in the first place.
print("Rain Faxing in a "+RainManMonster);
//boolean dummy = use_skill(1,$skill[Rain Man]);