function dropdown(objectID,opacity) {if (document.getElementById) document.getElementById(objectID).style.visibility = (opacity) ? "visible" : "hidden";}
function fnValidate(f) {
	if (f.visitor_biggest_challenge.value.length == 0) {
		alert('Please select an option to continue.');
		f.visitor_biggest_challenge.focus();
		return false;
	}
}