[jQuery] Functions and variables

[jQuery] Functions and variables


I'm sure this is dealt with somewhere in the jQuery tutorials but I
have not been able to find it.
I'm new to jQuery and used to working with functions and variables so
that I can create reusable code and not have to hard code every event
that could happen. This is pretty much basic programming. For
Example,
function action(id) {
//do something.....
}
Short of using this method of traditionally programming is there a
better way of doing this in jQuery?