Merged in feature/from-pantheon (pull request #16)

code from pantheon

* code from pantheon

wp/wp-content/themes/thbusiness/js/skip-link-focus-fix.js

@@ -0,0 +1,18 @@
+( function() {
+	var is_webkit = navigator.userAgent.toLowerCase().indexOf( 'webkit' ) > -1,
+	    is_opera  = navigator.userAgent.toLowerCase().indexOf( 'opera' )  > -1,
+	    is_ie     = navigator.userAgent.toLowerCase().indexOf( 'msie' )   > -1;
+
+	if ( ( is_webkit || is_opera || is_ie ) && document.getElementById && window.addEventListener ) {
+		window.addEventListener( 'hashchange', function() {
+			var element = document.getElementById( location.hash.substring( 1 ) );
+
+			if ( element ) {
+				if ( ! /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) )
+					element.tabIndex = -1;
+
+				element.focus();
+			}
+		}, false );
+	}
+})();