function validarEmail(email) {
	return !(email.indexOf("@") == -1 || email.indexOf(".") == -1 || email == "");
}

function contact(form) {
	var ret = false;
	with (form) {
		if (name.value == "") {
			alert('Name is a required field');
		}
		else if (email.value == "") {
			alert('Email is a required field');
		}
		else if (subject.value == "") {
			alert('Subject is a required field');
		}
		else {
			ret = true;
		}
	}
	return ret;
}