Remove states from the State dropdown.

remove_states.html

<script type="text/javascript">
// Script to remove states from a State dropdown.  There are special options
// to remove Canadian provinces, armed forces codes and the "other" option.
// @see https://salsasupport.zendesk.com/entries/66692524
//
// You configure this.  Change the list of states to includes the ones that you
// do not want to appear in a States dropdown.  Here are the rules:
//
// 1. States are two letters.
// 2. Separate the states with spaces.
// 3. Only uses letters and spaces.
// 4. Do not disturb the punctuation.  It bites when you try to touch or feed it.
// 
// Here's how to remove Oklahoma, Iowa and Nebraska.
//
// STATES = "OK IA NE";
//
var STATES = "";

// Set change "false" to "true" in this line to show only US states.
//This setting overrides the other settings (below).

var US_STATES_ONLY = false;

// These are predefined lists that you can remove.  Their names are 
// are clues about what they remove.  If you want to remove any of 
// these, change 'false' to 'true';
//
var CANADIAN = false;
var ARMED_FORCES = false;
var US_TERRITORIES = false;
var OTHER = false;

document.addEventListener('DOMContentLoaded', function() {
    var toBeRemoved = STATES;
    if (US_STATES_ONLY || CANADIAN) {
        toBeRemoved = toBeRemoved + " AB BC MB NB NF NL NS NT NU ON PE QC SK YT";
    };
    if (US_STATES_ONLY || ARMED_FORCES) {
        toBeRemoved = toBeRemoved + " AA AE AP";
    }
    if (US_STATES_ONLY || US_TERRITORIES) {
        toBeRemoved = toBeRemoved + " AS GU MP PR VI";
    }
    if (US_STATES_ONLY || OTHER) {
        toBeRemoved = toBeRemoved + " ot";
    }
    toBeRemoved = toBeRemoved.split(' ');
    var stateSelects = document.getElementsByName('State');
    if (stateSelects.length == 0) return;
    var select = stateSelects[0];
    var options = select.getElementsByTagName('option');
    if (options.length == 0) return;
    for (var i = options.length - 1; i >= 0; i--) {
        if (toBeRemoved.indexOf(options[i].value) != -1) {
            select.removeChild(options[i]);
        }
    }
});
</script>