User-agent: *
Disallow: /img/
Disallow: /imgdes/
Disallow: /css/

User-agent: Googlebot
Disallow: /*.gif$

User-agent: Googlebot
Disallow: /*.jpg$

User-agent: Googlebot-Image
Disallow: /

User-agent: psbot
Disallow: /

User-agent: EmailCollector
Disallow: /