function setRequiredSigns(value){
	if (value == 'noreceipt'){
		document.getElementById('required_address').innerHTML = '';
		document.getElementById('required_zip').innerHTML = '';
		document.getElementById('required_city').innerHTML = '';
	} else {
		document.getElementById('required_address').innerHTML = '*';
		document.getElementById('required_zip').innerHTML = '*';
		document.getElementById('required_city').innerHTML = '*';
	}
}