PHP Redirect after Mysql Insert

Below is my mySQL insert:

$sql="INSERT INTO gj (name, phone, city, zipcode, description, dateadded, website, address1, other2, payment_options, Products, email,cat1,cat2,cat3)
    VALUES
    ('$companyname','$phone','$city','$zipcode','$description',curdate(),'$website','$address','$other','$payment','$products','$email','$select1','$select2','$select3')";

    if (!mysql_query($sql,$link))
      {
      die('Error: ' . mysql_error());
      }
    echo "<br/><h2><font color='green' style='font-size:15px;float:right'>1 business added</font></h2>";

    mysql_close($link);
}

    ?>

Now, instead of displaying "1 business added" in green, I'd like to redirect back to the page I was on before. Thanks.