How to make JavaScript execute after page load?

Question

I\'m executing an external script, using a

Answer 1

Using the YUI library (I love it):

YAHOO.util.Event.onDOMReady(function(){
    //your code
});

Portable and beautiful! However, if you don't use YUI for other stuff (see its doc) I would say that it's not worth to use it.

N.B. : to use this code you need to import 2 scripts