Are the Haab and T’zolkin calendar dates used for cross-referencing?

(Yesterday’s post continued …) I do not think the Maya included Haab and T’zolkin calendar dates with the 13.0.0.0.0 Bak’tun Long Count Calendar date in the December 21, 2012 prediction for cross-referencing, which, according to my thesaurus means as an annotation or footnote or postscript, in other words, as something separate from the prophecy. I think the Haab and T’zolkin calendar dates are part of the prophecy. In other words, the two extra calendar dates are important to the prophecy since the whole next 5,280 year cycle–or even the 25,800 year cycle–begins on a date that is colored by the meaning of these Haab and T’zolkin dates.

Maybe I just don’t understand the meaning of the word, “cross-referencing.”