Achernar - 2:40 pm on Mar 22, 2008 (gmt 0)

Don't try to find a meaning to each part of the contruction.
You can't make it work without one of its components: the "grouping" (), the function(){}, and the final ().

Personally, I don't pass arguments to the anonymous function. Since it's only executed once, I already know what arguments it needs when I write the code.