These codes are for dynamic loading for remote CSS. It’s easy to load all CSS files from the beginning or just append link element (ref. Switch stylesheets with jQuery). But it rarely needs to load a file dynamically and wait until CSS file has been loaded completely.
test.html:
<html>
<head>
<title>css.html</title>
<script src="/jquery-1.3.2.js"></script>
<script>
$(document).ready(function()
{
// if [...]
Load remote CSS file dynamically with jQuery