mcd.dom.ready(function() {

	mcd.dom.removeClass('dropdowns', 'hide');
	
	//enable dropdown one
	var form = document.getElementById('airport-country');
	var	select = form.getElementsByTagName('select')[0];
	select.disabled = false;
	//enable-disable button
	mcd.event.add(select, 'change', function () {
		if (select.value != "none-selected") {
				var goButton = document.getElementById('go-button');
				goButton.src = "/images/buttons/btn-go-dark.png";
				goButton.disabled = false;
				mcd.event.add('go-button', 'click', function() {
					goButton.src = "/images/buttons/btn-go-disabled.png";
				});
		};
		if (select.value == "none-selected") {
				var goButton = document.getElementById('go-button');
				goButton.src = "/images/buttons/btn-go-dark-disabled.png";
				goButton.disabled = true;
		};
	});
	
	//enable dropdown two
	var formTwo = document.getElementById('airport-city');
	var	selectTwo = formTwo.getElementsByTagName('select')[0];
	selectTwo.disabled = false;
	//enable-disable button
	mcd.event.add(selectTwo, 'change', function () {
		if (selectTwo.value != "none-selected") {
				var goButton = document.getElementById('second-go-button');
				goButton.src = "/images/buttons/btn-go-dark.png";
				goButton.disabled = false;
				mcd.event.add('second-go-button', 'click', function() {
					goButton.src = "/images/buttons/btn-go-disabled.png";
				});
		};
		if (selectTwo.value == "none-selected") {
				var goButton = document.getElementById('second-go-button');
				goButton.src = "/images/buttons/btn-go-dark-disabled.png";
				goButton.disabled = true;
		};
	});
});