function checkLogin()
{
	var errorMsg = "";
	//Check for name
	if (document.loginform.id.value == "")
		errorMsg += "\n請輸入你的代號。";

	//Check for subject
	if (document.loginform.pwd.value == "")
		errorMsg += "\n請輸入你的密碼。";

	//If there is a problem with the form then display an error
	if (errorMsg != "")
	{
		var msg = "會員登入\n";
		msg += "========\n";
		errorMsg += alert(msg + errorMsg + "\n");
		return false;
	}
	return true;
}