function checkfields() {
	var strfname;
	var strlname;
	var strphone;
	var error=false;
	var msg="";
	
	strfname=window.document.online_form.firstname.value;
	strlname=window.document.online_form.lastname.value;
	strphone=window.document.online_form.phone.value;
	
	if (strfname=="") {
		msg="Please provide your first name.\n"
		error=true;
	}
	
	if (strlname=="") {
		msg = msg +"Please provide your last name.\n";
		error=true;
	}
	
	if (strphone=="") {
		msg = msg +"Please provide a phone number so we may contact you.\n";
		error=true;
	}
	
	if (error==true) {
			alert(msg);
			return false;
	}
	return true;
}