How to load Facebook connect script localized for the page viewer.

LoadLocalizedFacebookConnect.html

<div id="fb-root">
	<script type="text/javascript">
	window.fbAsyncInit = function() {
		FB.init({
			appId: '123456789xxxxxx', 
			status: true, 
			cookie: true, 
			xfbml: true
		});
	};
	(function() {
		var locale;
		try {
			locale = window.navigator.language.split('-');
			locale = locale[0].toLowerCase() + '_' + locale[1].toUpperCase();
		} catch (e) {
			locale = 'en_US';
		}
		
		document.writeln('<script type="text/javascript" src="http://connect.facebook.net/' + locale + '/all.js" async><\/script>');
	})();
	</script>
</div>