function OrtTrimString (strVal)
{
    var reVal;
    var strTmp;
    strTmp = strVal + "";
    if (strTmp.length == 0)
        return (strTmp);
    reVal = /^(\s|กก)*/;
    strTmp = strTmp.replace (reVal, '');
    reVal = /(\s|กก)*$/;
    return (strTmp.replace (reVal, ''));
}

function OrtCheckEmail (strEmail)
{
    var reVal;
    strEmail = (OrtTrimString (strEmail));
    if (strEmail.length == 0)
        return (false);
    reVal = /^[\-!#\$%&'\*\+\\\.\/0-9=\?A-Z\^_`a-z{|}~]+@[\-!#\$%&'\*\+\\\.\/0-9=\?A-Z\^_`a-z{|}~]+(\.[\-!#\$%&'\*\+\\\.\/0-9=\?A-Z\^_`a-z{|}~]+)+$/;
    return (reVal.test (strEmail));
}

function OrtCheckMachineCode (strCode)
{
    var i;
    var strChar;
    if (strCode.length != 17)
        return (false);
    for (i = 0; i < strCode.length; i ++)
    {
        strChar = strCode.substring (i, i + 1).toUpperCase ();
        if (!((strChar >= "A" && strChar <= "Z") || (strChar >= "0" && strChar <= "9") || strChar == ":"))
            return (false);
        if (i % 3 == 2 && strChar != ":")
            return (false);
    };
    return (true);
}