function billingCountryChange(elSelect) {

	var country = '';

	if (typeof(elSelect) == 'object') {
		if (elSelect.type.substring(0, 6) == 'select') {
			country = elSelect.options[elSelect.selectedIndex].value;
		} else {
			return;
		}
	}

	if (country == 'United States') {
		el = document.getElementById('billingProvince');
		if (el) {
			el.style.display = 'none';
		}

		el = document.getElementById('billingState');
		if (el) {
			el.style.display = 'block';
		}
	} else {
		el = document.getElementById('billingProvince');
		if (el) {
			el.style.display = 'block';
		}

		el = document.getElementById('billingState');
		if (el) {
			el.style.display = 'none';
		}
	}

}