<?php

$w = 85;
$id = $_REQUEST['id'];

if(isset($_REQUEST['w'])) {
 $w = intval($_REQUEST['w']);
}

$BASE = "http://superfiretruck.com/sketchabit/image.php";
$url = "$BASE?id=$id";

$src = imagecreatefrompng($url);
$dst = imagecreatetruecolor($w, $w);
imagecopyresampled($dst, $src, 0,0, 0,80, $w,$w, 320, 320);

header("Content-Type: image/jpeg");

imagejpeg($dst, NULL, 75);

?>