Trouble with very basic Javascript exercise

[Limenote]

Hello everyone, i'm learning javascript from the ground up and stuck on this exercise for some reason, its probably really simple but I cant seem to work out whats going on.

Any ideas?

http://www.codecademy.com/courses/javascript-intro/7/#!/exercise/7

 

[Limenote]

Hope I explained that ok.

thanks man, I couldn't get my head around what they where asking me, the way you explained it makes sense now!