Proper use of jquery $(document).ready() when declaring functions called within ready()

I have gotten into the habit of starting jquery coding with the ready function $(function(){...}); and putting all functions called from ready within ready.

Then I realized that some of the functions put into the ready function probably didn't need to be there.

For example, simple functions used by events in document ready could be declared outside of it:

function checkEmail(objelement){
   var emailRx = /^([\w-\.]+@([\w-]+\.)+[\w-]{2,4})?$/;
   return emailRx.test(objelement.val()) ? true : false;
}

Then used inside of it:

//code snippet for example

$(function(){

$("form[name='contactform']").submit(function(){
    $("input[type=text]").each(function(){
        if($(this).attr("id") == "email" && !checkEmail($(this))) { 
            $(this).prev().css("color","red");
       }
    });
});

});

I searched through many SO previous questions and couldn't seem to find an answer.

Is it better, worse, or no different to declare functions outside of ready in this manner?