Know what this method means, 'amod' ?

[Rogers333]

Analog Modulus?
Absolute Modulus?

I really can't figure it out, any help would be appreciated. I am trying to port this code, and I can't figure out it's javascript's reference.


It is being used in this open-source code here:

http://www.fourmilab.ch/documents/calendar/calendar.js

function jd_to_mayan_tzolkin(jd)
{
var lcount;

jd = Math.floor(jd) + 0.5;
lcount = jd - MAYAN_COUNT_EPOCH;
return new Array (amod(lcount + 20, 20), amod(lcount + 4, 13));
}

 

[Rogers333]

Oh nevermind,

it does seem to be Absolute Modulus