function createCategoryHeader($id,$colour,$text,$lng){

        #change the hex colour to rgb
        $rgb = hex2rgb($colour);

        # set up text
        $pointSize = 22;
        $font = "/var/www/fonts/NewsGothicBT.ttf";

        $bbox=imagettfbbox($pointSize,0,$font,$text);

        $textWidth = $bbox[2] - $bbox[0];
        $textHeight = abs($bbox[7] - $bbox[1]);
        $baseline = abs(0 - $bbox[7]);

        $img = imagecreate($textWidth+2,$textHeight+2);
        $bg = imagecolorallocate($img,$rgb[0],$rgb[1],$rgb[2]);
        $white = imagecolorallocate($img,255,255,255);

        imagefill($img,0,0,$bg);

        imagettftext ($img, $pointSize, 0, 0, $baseline, $white, $font, $text);
        imagepng($img,"/var/www/development/shop/skin1/images/".$lng."/tt_category_header".$id.".png");
        imagedestroy($img);

}