function getCompanyName($id)
{
    $localvars = localvars::getInstance();
    $validate = new validate();
    $customers = new Customers();
    $returnValue = "";
    if (isnull($id) && !$validate->integer($id)) {
        throw new Exception('not valid integer');
        return false;
    } else {
        $data = $customers->getRecords($id);
        $returnValue = $data[0]['companyName'];
        return $returnValue;
    }
}