function Login(domElem, lib) {
	var login = null;
  domElem.addEventListener('submit', function(e) {
    e.preventDefault();
    lib.send({tag: "LogIn", name: domElem.name.value})
  });
  domElem.leave.addEventListener('click', function(e) {
    e.preventDefault();
    lib.send({tag: "LogOut"})
  });

	return {
		onLogIn: onLogIn,
		onLogOut: onLogOut
	};

	function onLogIn(name) {
    if(name == domElem.name.value) {
      domElem.className = "on";
			login = name;
    }
	}

	function onLogOut(name) {
		if(name == login) {
			login = null;
      domElem.className = "";
		}
	}
}