function contactFormValidation() {
	valid = true;
	if ( document.getElementById("nameInput").value == "" ) {
		document.getElementById("nameField").className = ("formRow error");
		valid = false;
	} else {
		document.getElementById("nameField").className = ("formRow");
	};
	if ( document.getElementById("emailInput").value == "" ) {
		document.getElementById("emailField").className = ("formRow error");
		valid = false;
	} else {
		document.getElementById("emailField").className = ("formRow");
	};
	if ( document.getElementById("phoneInput").value == "" ) {
		document.getElementById("phoneField").className = ("formRow error");
		valid = false;
	} else {
		document.getElementById("phoneField").className = ("formRow");
	};
	if ( document.getElementById("messageInput").value == "" ) {
		document.getElementById("messageField").className = ("formRow error");
		valid = false;
	} else {
		document.getElementById("messageField").className = ("formRow");
	};
	
	return valid;
}