Autopopulate State and Zipcode when typing in Town.

I can not seem to get this script to work... I'm entering it as javascript . argh, I am very adobe illiterate. And thanks for the heads up on ZIp Codes being used by more than one municipality and covering more than one town, the form is mainly for records keeping so we are using the "main" zip code per town only assigning one per town etc.

You should be aware that a 5 digit U.S. Zip codes can be used by more than on municipality and may cover more than one town.

There are a couple of ways of doing it. The smart way (but more complicated) and the hard way (which is easier to implement, but requires much more work). The smart way is to create a spreadsheet with the town names in the first column, the zip code in the second and the state in the third and then attach that spreadsheet to the PDF file and use a script to look up the zip code and states whenever a town name is entered. It could even be possible to use a drop-down field for the town names and populate it based on the state selection (again, using a drop-down), and then the zip code based on the town name. This requires quite a complicated, custom-made script, though, but it has the advantage of being much more flexible and easier to maintain than the alternative.

The alternative, hard way, is to hard-code everything into the validation script of the text field. The basic structure would be:

if (event.value == "New York") {
    this.getField("State").value = "NY";
    this.getField("Zip").value = "10001";
} else if (event.value == "Albany") {
    this.getField("State").value = "NY";
    this.getField("Zip").value = "12084";
} // etc
else {
    this.getField("State").value = "";
    this.getField("Zip").value = "";
}