จะแยกส่วนการอัพโหลดรูปจากโค้ดที่มีอยู่ เป็นฟังก์ชั่นอัพโหลดรูปยังไงครับ

      <? 

$adt_cat_id=$_POST["adt_cat_id"];

for($i=0;$i<count($_FILES["fileUpload"]["name"]);$i++)

	{

		if(trim($_FILES["fileUpload"]["tmp_name"][$i]) != "")

		{

			$images = $_FILES["fileUpload"]["tmp_name"][$i];

			$images_file = $_FILES["fileUpload"]["type"][$i];

			$images_time = date('YmdHis');

			srand((double)microtime()*10); //ทำการสุ่มชื่อ

			$Pic_name=$random_pic = rand(1,99);

			if( $images_file == "image/gif" )

			{

			$filename = $Pic_name.".gif";

			}

			if (($images_file=="image/jpg")||($images_file=="image/jpeg")||($images_file=="image/pjpeg"))

			{

			$filename = $Pic_name.".jpg";

			}

			$full_images = "full"."$images_time"."$filename";

			$new_images = "thumbs"."$images_time"."$filename";			

			copy($_FILES["fileUpload"]["tmp_name"][$i],"adtpics/".$full_images);

			$width=150; //*** Fix Width & Heigh (Autu caculate) ***//

			$size=GetimageSize($images);

			$height=round($width*$size[1]/$size[0]);

			if( $images_file == "image/gif" )

			{

			$images_orig = ImageCreateFromGIF($images);

			}

			if (($images_file=="image/jpg")||($images_file=="image/jpeg")||($images_file=="image/pjpeg"))

			{

			$images_orig = ImageCreateFromJPEG($images);

			}

			$photoX = ImagesX($images_orig);

			$photoY = ImagesY($images_orig);

			$images_fin = ImageCreateTrueColor($width, $height);

			ImageCopyResampled($images_fin, $images_orig, 0, 0, 0, 0, $width+1, $height+1, $photoX, $photoY);

			ImageGIF($images_fin,"adtpics/".$new_images);

			ImageJPEG($images_fin,"adtpics/".$new_images);

			ImageDestroy($images_orig);

			ImageDestroy($images_fin);

			

			

			//*** Insert Record ***//            

$objConnect = mysql_connect("sql201.thport.com","thpor_5994385","hikaru") or die("Error Connect to Database"); 

$objDB = mysql_select_db("thpor_5994385_mushroom"); 

$strSQL = "INSERT INTO gallery "; 

$strSQL .="(Thumbnails,FilesName,gallerycat) VALUES ('".$new_images."','".$full_images."','".$adt_cat_id."')"; 

$objQuery = mysql_query($strSQL); 

}

} 	

echo "<H3>เพิ่มรูปเรียบร้อยแล้ว</H3>";

print"<meta http-equiv=\"refresh\" content=\"3;URL=galleryform.php\">\n";

?>