https://www.hiawatha-iowa.com/news/wp-content/themes/hiawatha/js/skip-link-focus-fix.js?ver=20151112

1/**
2 * Makes "skip to content" link work correctly in IE9, Chrome, and Opera
3 * for better accessibility.
4 *
5 * @link http://www.nczonline.net/blog/2013/01/15/fixing-skip-to-content-links/
6 */
7
8 ( function() {
9	var isWebkit = navigator.userAgent.toLowerCase().indexOf( 'webkit' ) > -1,
10		isOpera  = navigator.userAgent.toLowerCase().indexOf( 'opera' )  > -1,
11		isIE     = navigator.userAgent.toLowerCase().indexOf( 'msie' )   > -1;
12
13	if ( ( isWebkit || isOpera || isIE ) && document.getElementById && window.addEventListener ) {
14		window.addEventListener( 'hashchange', function() {
15			var id = location.hash.substring( 1 ),
16				element;
17
18			if ( ! ( /^[A-z0-9_-]+$/.test( id ) ) ) {
19				return;
20			}
21
22			element = document.getElementById( id );
23
24			if ( element ) {
25				if ( ! ( /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) ) ) {
26					element.tabIndex = -1;
27				}
28
29				element.focus();
30
31				// Repositions the window on jump-to-anchor to account for admin bar and border height.
32				window.scrollBy( 0, -53 );
33			}
34		}, false );
35	}
36} )();