The html5 shim for IE

htmlshim.html

<style>
/* CSS */
header, footer, article, section, nav, menu, hgroup {
   display: block;
}
</style>

<script>
	// Javascript to make IE recognize the elements
	document.createElement("article");
	document.createElement("footer");
	document.createElement("header");
	document.createElement("hgroup");
	document.createElement("nav");
	document.createElement("menu");
</script>

<!-- SHORTCUT TO THE ABOVE -->
<!--[if IE]>
<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->