[HTML] Kleine Page - aber schlechte html - ladet zu lange

<img src="xy.jpg" width="grö" height="ße">

#!/bin/bash

#
# benutzung:
# thumb.sh verzeichnis/
#

cd $1
mkdir _thumbnails

for i in *
do

 echo "Processing image $i..."
 /usr/bin/convert -quality 90% -thumbnail 180 $i _thumbnails/$i

done

function create_thumbnail($source,$dest)
{
$error=0;
if (!file_exists($source)){
 $error=404;
 return $error;
 exit;
 }
$bild=imagecreatefromjpeg($source);
list($width_orig, $height_orig) = getimagesize($source);

//Thumbnailgröße
$width = 100;
$height = 100;

if ($width && ($width_orig < $height_orig)) {
 $width = ($height / $height_orig) * $width_orig;
} else {
 $height = ($width / $width_orig) * $height_orig;
}

$newpic = imagecreatetruecolor($width, $height);
imagecopyresampled($newpic, $bild, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);
imagejpeg($newpic,$dest,80);
ImageDestroy($newpic);
return $error;
}