window.addEvent('domready', function() {
	$('state').addEvent('change', onSelectState);
	onSelectState(null, 'SP');
});

var onSelectState = function(event, state) {
	if (!state) var state = $('state').get('value');
	
	$('state').set('value', state);
	
	if (state) {
		$$('.state-box').setStyle('display', 'none');
		$$('#' + state + '.state-box').setStyle('display', 'block');
	}
}