function getCountryDistance(dropDownCtrl) {
    var ctrl = document.getElementById(dropDownCtrl);
    if (ctrl !== null) {
        var idx = ctrl.selectedIndex;
        var countryText = ctrl.options[idx].text;
        var result="";
       
        if ((countryText == "United Kingdom") || (countryText == "United States") || (countryText == "Canada")) {
            result = "miles";
        }
        else {
            result = "kilometres";
        }
        
        return result;
    }
    else {
        return "miles";
    }
}

function _doCheck(countryText,locationCtrl,distanceCtrl)
{
    var locationText=document.getElementById(locationCtrl);
    var distanceText=document.getElementById(distanceCtrl);

    if (countryText == 'United Kingdom') {
        if (locationText !== null) { locationText.innerHTML = "Postcode:"; }
    }
    else {
        if (locationText !== null) { locationText.innerHTML = "Location:"; }
    }

    if ((countryText == 'United Kingdom') || (countryText == 'United States') || (countryText == 'Canada')) {
        if (distanceText !== null) { distanceText.innerHTML='miles'; }
    }
    else {
        if (distanceText !== null) { distanceText.innerHTML='kilometres'; }
    }
}

function checkCountrySelection(dropDownCtrl,locationCtrl,distanceCtrl)
{
    var idx = dropDownCtrl.selectedIndex;
    _doCheck(dropDownCtrl.options[idx].text,locationCtrl,distanceCtrl);
}

function checkHiddenCountrySelection(hiddenCtrl,locationCtrl,distanceCtrl)
{
    var hidCtrl=document.getElementById(hiddenCtrl);
    if (hidCtrl !== null) {
        _doCheck(hiddenCtrl.value,locationCtrl,distanceCtrl);
    }
}