Giving a extra rank to a single member

I have this code to give a extra rank to a single member href="/u5" as you can see on the script but it doesn't work anyone have any idea.

Code:

$(function() {
  $('a[href="/u1"] span').find('.uA').append('<em class="adm">Administrator</em>');
});

Hey there,

You know you can create an extra profile field to accomplish this, correct?

If you do, however, want to use that code, what does '.uA' target?