var opened = false;

function show_address(id) {
	document.getElementById('defaultLocation').style.display='none';
	if(opened) {
		if(document.getElementById(opened)) {
			document.getElementById(opened).style.display='none';
		}
	}
	if(document.getElementById(id)) {
		document.getElementById(id).style.display='block';
		opened = id;
	}
}