Upload image or file

[mrijet]

Below is the code upload image...but I couldn't see the error..

<?php
if (isset($_POST['btn_uplaodpic']))
{
	$id = $_POST['hf_uname'];
	move_uploaded_file($_FILES['file']['tmp_name'],"images/".$id.".jpg");
	echo "Successfully upload!";
}
?>

Is that the correct code for upload image?