ajax 500 Internal Server Error 질문드려요. 채택완료

</strong></p><p><strong><script type="text/javascript"></strong></p><p><strong> 
function kin() { 
 </strong></p><p><strong>var kobj = document.getElementById("wr_1").value;</strong></p><p><strong>    var subject = "";
    var content = "";
    $.ajax({
        url: "<?=$board_skin_path?>/ajax_re.php",
        type: "POST",
        data: {
            "subject": kobj,
            "content": kobj
        },
        dataType: "json",
        async: false,
        cache: false,
        success: function(data, textStatus) {
            subject = data.subject;
            content = data.content;
        }
    });</strong></p><p><strong> }
</SCRIPT> </strong></p><p><strong>

</strong></p><p><strong><? </strong></p><p><strong>$subject = $_POST['subject'];
$content = $_POST['content'];</strong></p><strong><p>
   $max_wr1 =sql_fetch("select max(wr_1) as m1 from g4_write_corporation_car_log");</p><p> </p><p>   $result =sql_query("select * from g4_write_corporation_car_log where (wr_1 between '$subject' and '$max_wr1[m1]') order by wr_1 asc"); 
                   
  for ($i=0; $wow=mysql_fetch_array($result); $i++) { 
  
    $row[$i] = $wow[wr_3];
      }
$out .= $row[0]."<BR/>";   
$out1 .= $row[0]."<BR/>";   
die("{\"subject\":\"$out\",\"content\":\"$out1\"}");
?> </p></strong><p><strong>