// JavaScript Document

function checkForm(form) {
	ok=true;
	message='Please complete the following field(s):\n';
	if (form.Name.value=='') {
		ok=false;
		message+='\n - Name';
	}
	if (form.Telephone_number.value=='' && form.Email_address.value=='') {
		ok=false;
		message+='\n - Telephone number or Email address';
	}
	if (form.Message.value=='') {
		ok=false;
		message+='\n - Message';
	}
	if (!ok) alert(message);
	return ok;
}