function Enter(event, form_id) {
	if((event.keyCode == 0xA)||(event.keyCode == 0xD)) {
		document.forms[form_id].submit();
	}
}

function show(a1,a2) {
	if (document.getElementById(a1)) {
		var aa1=document.getElementById(a1); 
		var aa2=document.getElementById(a2);

		aa1.style.display='';
		aa2.style.display='none';

		return false;
	}
}

function personal() {
	var business = document.getElementById('business');
	var personal = document.getElementById('personal');
	business.style.display='none';
	personal.style.display='block';
}

function business() {
	var business = document.getElementById('business');
	var personal = document.getElementById('personal');
	business.style.display='block';
	personal.style.display='none';
}

function calc_c() {
	document.calc.option[1].checked=false;
	document.calc.option[0].checked=true;
}

function calc_ac() {
	document.calc.option[0].checked=false;
	document.calc.option[1].checked=true;
}