Something

<form enctype="multipart/form-data" action="index.php?a=members.php&b=profile.php" method="POST">     Change Avatar: <input name="avatar" type="file" />    <input type="submit" name="saveav" value="Send File" /></form><?phpif(isset($_POST['saveav'])) {	$uploaddir = 'avatars/';	$uploadfile = $uploaddir . md5(time());	$ext = strtolower(substr(strrchr($_FILES['avatar']['name'], "."), 1));	if($ext == 'jpg' or $ext == 'jpeg' or $ext == 'gif' or $ext == 'png') {		if($_FILES['avatar']['size'] > 102400) {			die("File is too large, keep it 100 kilobytes or smaller.");		}	} else {		die("Wrong file type.  Your image must be jpg, jpeg, gif, or png.");	}	if(move_uploaded_file($_FILES['avatar']['tmp_name'], $uploadfile)) {	   echo '<meta http-equiv="Refresh" content="0;url=index.php?page=profile.php">';	   if($avatar != 'avatars/newbie.png') {		   unlink($avatar);	   }	   $query = "UPDATE users SET avatar = '".$uploadfile."' WHERE login_name = '".$session."'";	   connect();	   mysql_query($query);	   mysql_close();	} else {	   echo "Failed to upload file.".$_FILES['avatar']['error']."";	}}