function validateForm() {
	var form = document.forms[0];

	var inputs = document.getElementsByTagName("input");
	for (var i = 0; i < inputs.length; i++) {
		if (inputs[i].className == "required" && inputs[i].value == "") {
			alert("Please fill out all required fields");
			return false;
		}
	}

	if (form.message.value == "") {
		alert("Please include a message");
		return false;
	}

	if (!validateEmail(form.email.value)) {
		alert("Please enter a valid email address");
		return false;
	}

	return true;
}

function validateEmail(email) {
   return (email.indexOf(".") > 2 && email.indexOf("@") > 0);
}