php mysql สอบถามปัญหาเกี่ยวกับ INSERT INTO ไม่รู้จะต้องแก้ไขยังไงคะ

mysql_query($strSQL2) or die(mysql_error());

<?	
}
elseif($action == "save")
{
	copy($_FILES["to_picname"]["tmp_name"],"program/".$_FILES["to_picname"]["name"]);
	$to_pic = $_FILES["to_picname"]["name"];
	$strSQL2 = "INSERT INTO pro_out (to_id,to_head,to_rtime,to_price,to_detail,to_country,to_hot,to_pic) VALUES ('','$to_head','$to_rtime','$to_price','$to_detail','$to_country','$to_hot','$to_pic')";
	mysql_query($strSQL2) or die ("Error Query [".$strSQL2."]");
	echo "<META HTTP-EQUIV=\"Refresh\" CONTENT=\"0;URL=main.php?page=$page&error=ทำการเพิ่มโปรแกรมทัวร์เรียบร้อยแล้ว\">";
}
elseif($action == "edit")
{
	
$strSQL1 = "SELECT * FROM pro_out WHERE to_id = '$to_id' LIMIT 1";
$objQuery1 = mysql_query($strSQL1) or die ("Error Query [".$strSQL1."]");
while($objResult1 = mysql_fetch_array($objQuery1))
{
$to_id = $objResult1["to_id"];
$to_head = $objResult1["to_head"];
$to_rtime = $objResult1["to_rtime"];
$to_price = $objResult1["to_price"];
$to_detail = $objResult1["to_detail"];
$to_country = $objResult1["to_country"];
$to_hot = $objResult1["to_hot"];
$to_pic = $objResult1["to_pic"];
}
?>

<table width="850" border="0" align="center" cellpadding="1" cellspacing="0">
  <tr>
    <td><table width="600" border="0" cellspacing="0" cellpadding="0">
      <tr>
        <td width="70">&nbsp;</td>
        <td width="530"><table width="500" border="0" cellspacing="0" cellpadding="2">
          <tr>
            <td class="homepage">แก้ไขโปรแกรมทัวร์ต่างประเทศ</td>
          </tr>
          <tr>
            <td class="home02">Edit  Program Tourist out of Thailand</td>
          </tr>
        </table></td>
      </tr>
    </table></td>
  </tr>
  <tr>
    <td>&nbsp;</td>
  </tr>
  <tr>
    <td class="error_message"><? echo $error; ?></td>
  </tr>
  <tr>
    <td><form action="main.php?page=<? echo $page;?>&action=update" method="post" name="program_add" enctype="multipart/form-data">
      <table width="800" border="0" align="center" cellpadding="2" cellspacing="0">
        <tr>
          <td width="200" class="form_right">ชื่อ Package :&nbsp;</td>
          <td width="600"><input type="text" name="to_head" size="50" value="<? echo $to_head;?>"></td>
        </tr>
        <tr>
          <td class="form_right">รูปภาพ :&nbsp;</td>
          <td><img src="program/<? echo $to_pic;?>" height="80" width="100" border="1"></td>
        </tr>
        <tr>
          <td class="form_right">เปลี่ยนรูปภาพ :&nbsp;</td>
          <td><input type="file" name="new_picture" size="30"> * ถ้าไม่เปลี่ยนรูปภาพให้เว้นว่างในช่องนี้</td>
        </tr>
        <tr>
          <td class="form_right">ระยะเวลา :&nbsp;</td>
          <td><input type="text" size="25" name="to_rtime" value="<? echo $to_rtime;?>"></td>
        </tr>
        <tr>
          <td class="form_right">ราคา :&nbsp;</td>
          <td><input type="text" size="13" name="to_price" value="<? echo $to_price;?>">
            &nbsp;บาท</td>
        </tr>
        <tr>
          <td class="form_right">ประเทศ :&nbsp;</td>
          <td><input type="text" name="to_country" size="18" value="<? echo $to_country;?>"></td>
        </tr>
        <tr>
          <td class="form_right">เป็น Package ที่นิยม :&nbsp;</td>
          <td><input type="checkbox" name="to_hot" <? if($to_hot == "on") { echo "checked";}?>></td>
        </tr>
        <tr>
          <td colspan="2"><textarea id="editor1" name="to_detail"><? echo $to_detail;?></textarea>
            <script type="text/javascript">
					CKEDITOR.replace('editor1');
				</script></td>
        </tr>
        <tr>
          <td>&nbsp;</td>
          <td>&nbsp;</td>
        </tr>
        <tr>
          <td>&nbsp;</td>
          <td><input type="hidden" value="<? echo $to_pic;?>" name="old_picture"><input type="hidden" value="<? echo $to_id;?>" name="to_id"><input type="submit" value="แก้ไขโปรแกรมทัวร์นี้">
            &nbsp;
            <input type="button" value="ยกเลิกการเพิ่ม" onClick="window.location.replace('main.php?page=<? echo $page; ?>');"></td>
        </tr>
      </table>
    </form></td>
  </tr>
  <tr>
    <td>&nbsp;</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
  </tr>
</table>
<?	
}
elseif($action == "update")
{
	if(empty($new_picture))
	{
	$strSQL2 = "UPDATE pro_out SET to_head='$to_head',to_rtime='$to_rtime',to_price='$to_price',to_detail='$to_detail',to_country='$to_country',to_hot='$to_hot' WHERE to_id='$to_id'";
	mysql_query($strSQL2) or die ("Error Query [".$strSQL2."]");
	echo "<META HTTP-EQUIV=\"Refresh\" CONTENT=\"0;URL=main.php?page=$page&error=ทำการแก้ไขโปรแกรมทัวร์เรียบร้อยแล้ว\">";
	}
	else
	{
		unlink("program/$old_picture");
		copy($_FILES["new_picture"]["tmp_name"],"program/".$_FILES["new_picture"]["name"]);
		$to_pic = $_FILES["new_picture"]["name"];
		$strSQL2 = "UPDATE pro_out SET to_head='$to_head',to_rtime='$to_rtime',to_price='$to_price',to_detail='$to_detail',to_country='$to_country',to_hot='$to_hot',to_pic='$to_pic' WHERE to_id='$to_id'";
	mysql_query($strSQL2) or die ("Error Query [".$strSQL2."]");
	echo "<META HTTP-EQUIV=\"Refresh\" CONTENT=\"0;URL=main.php?page=$page&error=ทำการแก้ไขโปรแกรมทัวร์เรียบร้อยแล้ว\">";
	}
}
elseif($action == "delete")
{
	$strSQL2 = "DELETE FROM pro_out WHERE to_id = '$to_id'";
	mysql_query($strSQL2) or die ("Error Query [".$strSQL2."]");
	echo "<META HTTP-EQUIV=\"Refresh\" CONTENT=\"0;URL=main.php?page=$page&error=ทำการลบโปรแกรมทัวร์เรียบร้อยแล้ว\">";
}
?>