Using dynamic referencing in PDF Form with Checkboxes

Question

I have created a checklist that contains approx 60-70 steps. About 20 of them are to have a checkbox that fills an adjacent field with the date, and another with the user name. I have already got this functioning as a stand alone process.
aaa = checkbox
aaadate = field for date
aaaname = field for name
[code]
function test() {
var one = this.getField("aaa");
var two = this.getField("aaadate");
if (one.value == 'Yes') {
if (two.value == "") {
     this.getField("aaadate").value = util.printd("dd-mmm-yy",new Date());
     this.getField("aaaname").value = identity.name;
}} else if (one.value == 'Off') {
     this.getField("aaadate").value = "";
     this.getField("aaaname").value = "";
[/code]
I do not want to write a piece of code for each checkbox so I am trying to figure out how to use dynamic referencing so that when i check on a checkbox, the code takes the checked checkboxes' name (aaa) and is able to determine the two other fields name by appending/concatenating (name + "date"  = aaadate)
I have tried various methods and done tremendous research; I'm not sure if I lack the knowledge to incorporate what I've found properly, if I just have been looking in the wrong places for the wrong things. It seems like this should be possible in a PDF form...
Please help

Answer 1

You need to inject the part of the field name that changes as a variable. So your code would be something like this:
function test(base) {
    var one = this.getField(base);
    var two = this.getField(base+"date");
    if (one.value == 'Yes') {
        if (two.value == "") {
            this.getField(base+"date").value = util.printd("dd-mmm-yy",new Date());
            this.getField(base+"name").value = identity.name;
    } else if (one.value == 'Off') {
        this.getField(base+"date").value = "";
        this.getField(base+"name").value = "";
And you would call it like so:
test("aaa");
test("bbb");
etc.