[jQuery] calling functions between multiple document ready events

[Brian FitzGerald]

I know that you can have more than on document ready event without
difficulty. i.e.

$(function(){
  // document ready 1
});

$(function(){
  // document ready 2
});

The question I have is, is there any way for them to call functions
from one to the other?  The following does not work:

$(function(){
   function displayMessage(){ alert('hello world'); };
});

$(function(){
  displayMessage();
});

This invokes a js error complaining that displayMessage() is not
defined.

Thanks in advance for any thoughts,
Brian