function showById(id) {
	document.getElementById(id).style.display='block';
}

function hideById(id) {
	document.getElementById(id).style.display='none';
}

function showCity () {
	if (document.getElementById('form_city').selectedIndex == 2) {
		document.getElementById('cityelse').style.display = 'block';
	}
	else {
		document.getElementById('cityelse').style.display = 'none';
	}
}