function validate(){
	flag = true;
	if(document.contact_form.fname.value==''){
		document.getElementById('fname_error').innerHTML = 'first name required';
		flag = false;
	}else{
		document.getElementById('fname_error').innerHTML = '';
	}
	if(document.contact_form.lname.value==''){
		document.getElementById('lname_error').innerHTML = 'last name required';
		flag = false;
	}else{
		document.getElementById('lname_error').innerHTML = '';
	}
	if(document.contact_form.hphone.value==''){
		document.getElementById('hphone_error').innerHTML = 'home phone required';
		flag = false;
	}else{
		document.getElementById('hphone_error').innerHTML = '';
	}
	if(!document.contact_form.autoi.checked && !document.contact_form.homei.checked && !document.contact_form.busi.checked){
		document.getElementById('product_error').innerHTML = 'please select at least one product';
		flag = false;
	}else{
		document.getElementById('product_error').innerHTML = '';
	}
	return flag;
}

function driving_info(){
	document.contact_form.cleanrecord.disabled = !document.contact_form.autoi.checked;
	document.contact_form.overfifty.disabled = !document.contact_form.autoi.checked;
	if(!document.contact_form.autoi.checked){
		document.contact_form.cleanrecord.checked = false;
		document.contact_form.overfifty.checked = false;
	}
}