Include the HTML5 shiv in the <head> of your page in a conditional comment and after any stylesheets.
<!--[if lt IE 9]>
<script src="components/html5shiv/html5shiv.js"></script>
<![endif]-->
Manual installation
Download and extract the latest zip package from this repositiory and copy the two files dist/html5shiv.js and dist/html5shiv-printshiv.js into your project. Then include one of them into your <head> as above.
