php code not working over web server...................

I have make a file to upload a multiple file to upload from admin side and when i click over add more records it is not working properly over server but it is working properly on my localhost. i m scare that what is going on................ plz help me out....................

following are code:

<tr class="txt">
  <td valign="top">
  <div id="dvFile">Report Type : <?php $nfiles=0; ?>
  <select name="rname<?php echo $nfiles; ?>"><?php $hsp=mysql_query("SELECT reporttype FROM report");$row = mysql_fetch_array($hsp);do{ ?><option value="<?php echo $row['reporttype']; ?>"><?php echo strtoupper($row['reporttype']); ?></option><?php } while ($row = mysql_fetch_assoc($hsp)); $rows = mysql_num_rows($hsp);if($rows > 0) { mysql_data_seek($hsp, 0); $row = mysql_fetch_assoc($hsp); }?>
  </select>
  Notes : <textarea name="sp<?php echo $nfiles; ?>" rows="5" cols="30"></textarea>
  <input type="file" name="item_file[]">
  </div>
  </td>
  <td valign="top">
  <a href="javascript:more();" title="Add more" name="add">Add More Records</a>
  </td>
 <script language="javascript">
  nfiles = 0;
  function more()
 {  
   nfiles = ++nfiles;
   
   var txt = '<br>Report Type : <select name=\'rname' + nfiles + '\'><?php $hsp=mysql_query("SELECT reporttype FROM report"); $row = mysql_fetch_array($hsp); do { ?><option value="<?php echo $row['reporttype']; ?>"><?php echo strtoupper($row['reporttype']); ?></option><?php } while ($row = mysql_fetch_assoc($hsp)); $rows = mysql_num_rows($hsp); if($rows > 0) { mysql_data_seek($hsp, 0); $row = mysql_fetch_assoc($hsp); } ?></select>';
  txt = txt + ' Notes : <textarea name=\'sp' + nfiles + '\' rows=\'5\' cols=\'30\'></textarea>';
  txt = txt + ' <input type=\'file\' name=\'item_file[]\'>';
  document.getElementById("dvFile").innerHTML += txt; 
 }
  function validate(f)
 {
  var chkFlg = false;
  for(var i=0; i < f.length; i++)
  {
   if(f.elements[i].type=="file" && f.elements[i].value != "")
   {
    chkFlg = true;
   }
   
  }
  
  if(!chkFlg)
  {
   alert('Please browse/choose at least one file');
   return false;
  }
  f.pgaction.value='upload';
  return true;
 }
 </script>
  </tr>



thanks in advance
shashi