Acrobat Calculated Date JavaScript

Question

Hi, I was wondering if anyone may assist me with this.
I have a form that people complete for travel. Certain things have to be submitted not later than specific days before their travel.
Beginning of form has travel date Q.1: mm/dd/yy
Based on the travel date, there are a few deadlines to complete a few items.
For example-
Q2. submit form 0900 no later than [mm/dd/yy] --> here it spits out a date that is travel date info submitted above minus, say, 60 days.
So on and so forth. I would be able to apply the rule to several questions, but would appreciate if someone may assist with the proper script to insert for this?
Thanks a bunch!!

Answer 1

Above ^ is the form with notes to capture my goal visually..
So I went through the code and found the minor issue - I think... I converted the Q1-->TRAVEL_Date & Q2--> SUBMIT_NO_LATER (to reflect fields in my form).
I think the issue I run into with the code provided is the field Travel_Date (originally Q1), it is blank until the user fills out the Travel_Date field. Once they complete it, only then (based on the information the user enters in the first field), does the second field (Submit_No_Later) automatically has a date generated.
The items in bold are "unknown" until the user completes the info. Is there a way to make that information populated based off of what is entered in Q1/Travel_Date, that will in effect translate to the next field --> SUBMIT_NO_LATER?
// TRAVEL_DATE date of "04/01/2015"
var TRAVEL_DATE = "04/01/15";
// TRAVEL_DATE convert to date object;
var oTRAVEL_DATE = util.scand("mm/dd/yy", TRAVEL_DATE);
if(oTRAVEL_DATE == null) app.alert("Error converting " + TRAVEL_DATE + " using format mm/dd/yy", 1, 0);
// display the date and time value for TRAVEL_DATE;
app.alert("TRAVEL_DATE is " + util.printd("mm/dd/yy HH:MM", oTRAVEL_DATE), 3, 0);
// subtract 60 days
if(oDate != null) {
// compute the SUBMIT_NO_LATER date;
var oSUBMIT_NO_LATER = new Date(oTRAVEL_DATE.getFullYear(), oTRAVEL_DATE.getMonth(), oTRAVEL_DATE.getDate() - 60, 9, 0, 0, 0);
// display the computed SUBMIT_NO_LATER date;
app.alert("SUBMIT_NO_LATER is " + util.printd("mm/dd/yy h:MMtt", oSUBMIT_NO_LATER));
} else {
app.alert("SUBMIT_NO_LATER could not be computed.", 1, 0);