function check_contact_form () {
	valid = true;
	required_fields = new Array('etunimi', 'sukunimi', 'gsm', 'email');
  for(i=0; i<required_fields.length; i++) {
		field_name = required_fields[i];
		// alert(field_name); // DEBUG
		if (document.contact_form.elements[field_name].value == "") {
			valid = false;
		}
  }
	return valid;
}


function check_contact_email_form () {
	valid = true;
	required_fields = new Array('etunimi', 'sukunimi', 'email', 'message');
  for(i=0; i<required_fields.length; i++) {
		field_name = required_fields[i];
		// alert(field_name); // DEBUG
		if (document.contact_form.elements[field_name].value == "") {
			valid = false;
		}
  }
	return valid;
}