สอบถามนิดนึงครับ เรื่องการใช้ uploadify กับ input file หลายฟิลล์ ในหน้าเดียว ไม่ทราบว่าจะเขียนโค้ดอย่างไรดีครับ

// code ส่งค่า  //
<script type="text/javascript">
$(document).ready(function() {


	
    $(".inputFileUploadify").each(function() {
        var myID = $(this).attr('id');
		
        $('#' + myID).uploadify({
			'formData'     : {
				'timestamp' : '<?php echo $timestamp;?>',
				'token'     : '<?php echo md5('unique_salt' . $timestamp);?>'
			},			
            'swf'      : '<?=_BASEURL_?>/swf/uploadify.swf',
            'method'        : 'post',
		 	'uploader' : '<?=_BASEURL_?>/get_data.php',
            'displayData'   : 'percentage',
            'simUploadLimit': 1,
            'queueSizeLimit': 1,
            'sizeLimit' :    10485760,
            'auto'          : false,
			'onUploadStart' : function(file) 
			{
					 $('#' + myID).uploadify("settings", "formData", 
					 {
						 "title_web" : $("#title_web").val(),
						 "description" : $("#description").val(),
						 "keyword" : $("#keyword").val(),
						 "bg_position" : $("#bg_position").val()	 
					});				
			 }, 			
			'onUploadError' : function(file, errorCode, errorMsg, errorString) {
					//alert('The file ' + file.name + ' could not be uploaded: ' + errorString);
					$('#status').dialog({ modal: true, height: "auto", width: "250px", open: function(event, ui) { $('body').css('overflow','hidden');}, close: function(event, ui) { $('body').css('overflow','auto'); } }).html(errorString);
				  		setTimeout("refresh_page();",3000);								
					},				 
			'onUploadSuccess' : function(file, data, response) {
					//alert('The file was saved to: ' + data);
					$('#status').dialog({ modal: true, height: "auto", width: "250px", open: function(event, ui) { $('body').css('overflow','hidden');}, close: function(event, ui) { $('body').css('overflow','auto'); } }).html(data);
				  		setTimeout("refresh_page();",3000);	
				}				
        });
		
		
    });
	
	
	$('#submit').click(function(){
	
		$('#w_logo').uploadify('upload','*');
		$('#bg_img').uploadify('upload','*');
		$('#img_top').uploadify('upload','*');
		$('#img_bottom').uploadify('upload','*');
		
	});


});
	</script>

<form id="frm" name="frm" action="" enctype="multipart/form-data" method="post">


<input type="file" id="w_logo" name="w_logo" class="inputFileUploadify"/>
<input type="file" id="bg_img" name="bg_img" class="inputFileUploadify"/>
<input type="file" id="img_top" name="img_top" class="inputFileUploadify"/>
<input type="file" id="img_bottom" name="img_bottom" class="inputFileUploadify"/>

<input type="button" id="submit" <?php /*?>onclick="sent_data('design/get_data_decorate.php');"<?php */?> class="register-button" value="บันทึกข้อมูล">

</form>




หน้าของการรับข้อมูล

$targetFolder = _PATH_.'/images/bg'; // Relative to the root

$verifyToken = md5('unique_salt' . $_POST['timestamp']);

if(isset($_POST))
{
	extract($_POST);


	if (!empty($_FILES) && $_POST['token'] == $verifyToken) {
		$tempFile = $_FILES['Filedata']['tmp_name'];
		$targetPath = $_SERVER['DOCUMENT_ROOT'] . $targetFolder;
		$targetFile = rtrim($targetPath,'/') . '/' . $_FILES['Filedata']['name'];
		
		// Validate the file type
		$fileTypes = array('jpg','jpeg','gif','png'); // File extensions
		$fileParts = pathinfo($_FILES['Filedata']['name']);
		
		if (in_array($fileParts['extension'],$fileTypes)) {
			move_uploaded_file($tempFile,$targetFile);
			
			echo $targetFolder;
	
		//$insert_img = "update web_config set  w_logo ='".$_FILES['Filedata']['name']."', bg_img='".$bg_img."', img_top='".$img_top."', img_bottom='".$img_bottom."' where w_id='1'";
			/*	mysql_query($insert_img) or die("ไม่สามารถบันทึกข้อมูลได้ กรุณาตรวจสอบข้อมูลอีกครั้ง");*/
				
		} else {
			echo 'Invalid file type.';
		}
	}	
}