define ('DIGGTHIS_JS', 
	"<script type='text/javascript'>
		(function() {
		var s = document.createElement('SCRIPT'), s1 = document.getElementsByTagName('SCRIPT')[0];
		s.type = 'text/javascript';
		s.async = true;
		s.src = 'httpss://widgets.digg.com/buttons.js';
		s1.parentNode.insertBefore(s, s1);
		})();
	</script>");

function diggthis_add_js_to_doc_head() {
	print DIGGTHIS_JS;
}

add_action('wp_head','diggthis_add_js_to_doc_head');