[jQuery] Callback Function > had a look but don't get it

[jQuery] Callback Function > had a look but don't get it


Ok i'm nearly there LOL
i have the link and a box which i want to foundOut as my function.
All works dandy now :)
But whatif i wanted after i clicked on the link to go to its normal
state?
Well i went to the jquery site but i don't think its designed for TRUE
beginners like myself....
It talks about Callback function and its displayed like this
function callback() {
this; // dom element
}
So here is my code and where do i put this callBack? and do i need to
add a class to it?
$(function() { // document is ready for load
         $('a').click(function() {
         $('.box').fadeOut("slow");
                                     });
});
Jessie