<?
$colour=$_GET['c'];
$img_number = imagecreate(40,40);
if ($colour == "w"){
$a = imagecolorallocate($img_number,255,255,255);
}elseif ($colour == "b"){
$a = imagecolorallocate($img_number,255,255,255);
}elseif ($colour == "g"){
$a = imagecolorallocate($img_number,204,204,204);
}

imagefill($img_number,0,0,$a);
header("Content-type: image/jpeg");
imagejpeg($img_number);
imagedestroy($img_number);

?>