if ((!empty($_GET['add'])||!empty($_POST['add'])) && empty($_POST['closeAdd'])) {
    echo "<center><form action='c-main.php' method='post'>
            <table>
            <tr><td>姓名</td><td><input type='text' name='name'></td><tr>
            <tr><td>電話</td><td><input type='text' name='telephone'></td><tr>
            <tr><td>郵箱</td><td><input type='text' name='email'></td><tr>
            <tr><td class='c-textarea-text'>備注</td><td><textarea rows='5' cols='50' name='description'></textarea></td><tr>
            <tr><td></td><td class='c-buttons'><input type='submit' name='add' value='增加'><input type='submit' name='closeAdd' value='關閉'></td><tr>
            </table>
          </form></center>";    
}

if (!empty($_POST['add'])){    
    $sql="insert into c_contacts (c_id, u_id, c_email, c_name, c_telephone, c_description) 
            values (null, '".$_SESSION['uid']."', '".$_POST['email']."', '".$_POST['name']."', '".$_POST['telephone']."', '".$_POST['description']."')";        
    mysql_query($sql);
}