function ShowHide(fieldname,set) {
	if (set == 'hide') {
			document.getElementById(fieldname).style.display = 'none';
			document.getElementById(fieldname).style.visibility = 'hidden';
	} else if (set == 'show') {
			document.getElementById(fieldname).style.display = 'block';
			document.getElementById(fieldname).style.visibility = 'visible';
	}
}