I'm using the dropdown list contained in http://www.javascriptsource.com/forms/country-state-city-drop-down-list.html

// State lists
var states = new Array();
states['Canada'] = new Array('Alberta', 'British Columbia', 'Ontario');
states['Mexico'] = new Array('Baja California', 'Chihuahua', 'Jalisco');
states['United States'] = new Array('California', 'Florida', 'New York');
// City lists
var cities = new Array();
cities['Canada'] = new Array();
cities['Canada']['Alberta'] = new Array('Edmonton', 'Calgary');
cities['Canada']['British Columbia'] = new Array('Victoria', 'Vancouver');
cities['Canada']['Ontario'] = new Array('Toronto', 'Hamilton');
cities['Mexico'] = new Array();
cities['Mexico']['Baja California'] = new Array('Tijauna', 'Mexicali');
cities['Mexico']['Chihuahua'] = new Array('Ciudad Juárez', 'Chihuahua');
cities['Mexico']['Jalisco'] = new Array('Guadalajara', 'Chapala');
cities['United States'] = new Array();
cities['United States']['California'] = new Array('Los Angeles', 'San Francisco');
cities['United States']['Florida'] = new Array('Miami', 'Orlando');
cities['United States']['New York'] = new Array('Buffalo', 'new York');

function setStates() {
    cntrySel = document.getElementById('country');
    stateList = states[cntrySel.value];
    changeSelect('state', stateList, stateList);
    setCities();
}

function setCities() {
    cntrySel = document.getElementById('country');
    stateSel = document.getElementById('state');
    cityList = cities[cntrySel.value][stateSel.value];
    changeSelect('city', cityList, cityList);
}

function changeSelect(fieldID, newOptions, newValues) {
    selectField = document.getElementById(fieldID);
    selectField.options.length = 0;
    for (i = 0; i < newOptions.length; i++) {
        selectField.options[selectField.length] = newOption(newOptions[i], newValues[i]);
    }
}

function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
            if (oldonload) {
                oldonload();
            }
            func();
        }
    }
}
addLoadEvent(function() {
    setStates();
});
Head < script type = "text/javascript"
src = "countryStateCity.js" > << / script > Body < fieldset style = "width: 230px;" > 
Make your selection
 < p > 



Country:


Canada
Mexico
United States



State:


Please select a Country



City:


Please select a Country




 < /fieldset>

I have got the code to work OK but only with small content. When I load all countries, states & regions, & cities & towns into countryStateCity.js file my computer runs out of memory.

The "countryStateCity.js" file is huge. If I list all the countries and all the states & regions and the cities & towns of the countries starting with "A" & "B" everything works OK, but if I add the cities & towns of the countries starting with "C" the system fails.

I need to break up the source file into maybe 1 for each country similar to this;

src="country/Canada.js"
src="country/Mexico.js"
src="country/United States.js"

I want Javascript to find a file name like country/Canada.js, rather than find a name within the whole world file.

Can somebody provide me with amended "Javascript" coding?