howto
step 1: Create a bookmarklet
Drag & drop the following link to your browsers favorites-bar:
23tools: View on black
step 2: Visit photo's page and "black" it
Visit the photo you would like to see in your webbrowser, i.e.
http://www.23hq.com/IkoTikashi/photo/3296642 and click on the bookmarklet you have just created.
A windows will pop up with a perdefined text which you only need to copy & paste into your photos description.