สอบถามการ edit รูปภาพครับ จะทําระบบ อัพรูปถามครับ

<?php
if($_GET['ref_id']){
	$ref_id = $_GET['ref_id'];
	
	$up_sql = "SELECT * FROM $tb_ref WHERE ref_id = '$ref_id'";
	$up_query = mysql_query($up_sql);
	$ref_result = mysql_fetch_array($up_query) or die (mysql_error());
?>	
<?php
	if($ref_result){
?>
		<form method="post" action="chk_edit.php?ref_id=<?php echo $ref_result['ref_id']; ?>" enctype="multipart/form-data">
		<table>
            <tr>
                <td>
                    File Name:
                </td>
                <td>
                    <input type="text" name="ref_name" value="<?php echo $ref_result['ref_name']; ?>"/>
                </td>
            </tr>
            <tr>
                <td>
                    Link:
                </td>
                <td>
                    <input type="text" name="ref_link" value="<?php echo $ref_result['ref_link']; ?>"/>
                </td>
            </tr>
            <tr>
                <td>
                    Type File:
                </td>
                <td>
                    <select name="ref_type" value="<?php echo $ref_result['ref_type']; ?>">
                        <option value="manufacturing">Manufacturing</option>
                        <option value="construction">Construction</option>
                        <option value="trading">Trading</option>
                        <option value="steel">Steel</option>
                        <option value="wood">Wood</option>
                    </select>
                </td>
            </tr>
            <tr>
                <td>
                    Image
                </td>
                <td>
                    <input type="file" name="ref_img" value="<?php echo $ref_result['ref_img']; ?>"/>
                </td>
            </tr>
            <tr>
                <td>
                    <input name="btn" type="submit" value="Uploadfile">
                </td>
            </tr>
        </table>
		</form>
<?php	
	}
}
?>