Lightbox / Slimbox - close on click

[worech]

Excuse my newbie q, but didn´t found an answer anywhere - I would like to make my light/slim box product picture to close on click anywhere in the field, not only on close-x button. Is there any easy way how to do this? I really don´t understand js, so if any Guru can help me with an advice like "add line ..." to your ../../smthng file, I would be really happy. Using VM 1.1.8 on J 1.5.22
Many thanks in advance.