Really basic question - what does the code do exactley?

Really basic question - what does the code do exactley?

Hi, can somebody advise what the following code actually does please? Is this refereed to as binding?

  1. jQuery('#ilightbox').iLightBox();

The reason i ask is because im trying to run the code from within an iframe. Something like:

  1. jQuery('#ilightbox').parent.iLightBox();

Cheers,