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

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

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

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

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

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

User-agent: *
Disallow: /*.jpeg$ 

User-agent: *
Disallow: /*.swf$